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  • Linux RHEL : Making disk image efficiently

    - by TheProfoundGeek
    I have a linux box having RHEL. Its disk (hda1) is having free space of about 25GB. I have an another disk (hda2) which is of 250GB having another RHEL instance, it's partitioned for 200GB. Data on the disk occupies about 21GB of data. The image of hda2 needs to be taken and restored on other disk of same specs. What is the best way to make image file of the hda2? Ideally the images size should be around 25GBs as the actual data on the disk is just 21GB. I am aware about the following two methods. Method 1 : Raw Image dd if=/dev/hda2 of=/path/to/image dd if=/path/to/image of=/dev/hda3 Question 1 : Will the above method make a gigantic image of 250GBs? Is it efficient? Method 2 : Compressed Image. dd if=/dev/hda2 | gzip > /path/to/image.gz gzip -dc /path/to/image.gz | dd of=/dev/hda2 Question 2 : I tried the method 2, its taking too long. What are the pit falls of this methods? Which of the above method id efficient and why? Is there any other Linux utility which can do the job? Third party tools are no no.

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  • Intent and OnActivityResult causing Activity to get restart Actuomatically : Require to solve this issues

    - by Parth Dani
    i am having 20 imageview and i am having 20 button for them when i click any 1 button it gives me option to select image from gallery or camera when i select any option for example galley it will take me to the gallery and let me select image from their and let me display those images on my imageview for respective button now the problem is sometimes when i do the whole above process my activity is getting restart actuomatically and all the image which were first selected get vanished from their imageview For Refernce my code is as follow: @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.new_upload); // **************Code to get Road worthy number and VIN number value in // Shared Preference starts here************************ SharedPreferences myPrefs1 = this.getSharedPreferences("myPrefs", MODE_WORLD_READABLE); roadworthynumber = myPrefs1.getString(MY_ROADWORTHY, "Road Worthy Number"); vinnumber = myPrefs1.getString(MY_VIN, "VIN Number"); // **************Code to get Road worthy number and VIN number value in // Shared Preference ends here************************ // **************Code to create Directory AUSRWC starts // here************************ if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { cacheDir = new File(Environment.getExternalStorageDirectory() + File.separator + "AUSRWC" + File.separator); cacheDir.mkdirs(); } // **************Code to Create Directory AUSRWC ends // here************************ // *****************Assigning Button variable their Id declare in XML // file starts here***************** new_select1 = (Button) findViewById(R.id.new_select1); new_select2 = (Button) findViewById(R.id.new_select2); new_select3 = (Button) findViewById(R.id.new_select3); new_select4 = (Button) findViewById(R.id.new_select4); new_select5 = (Button) findViewById(R.id.new_select5); new_select6 = (Button) findViewById(R.id.new_select6); new_select7 = (Button) findViewById(R.id.new_select7); new_select8 = (Button) findViewById(R.id.new_select8); new_select9 = (Button) findViewById(R.id.new_select9); new_select10 = (Button) findViewById(R.id.new_select10); new_select11 = (Button) findViewById(R.id.new_select11); new_select12 = (Button) findViewById(R.id.new_select12); new_select13 = (Button) findViewById(R.id.new_select13); new_select14 = (Button) findViewById(R.id.new_select14); new_select15 = (Button) findViewById(R.id.new_select15); new_select16 = (Button) findViewById(R.id.new_select16); new_select17 = (Button) findViewById(R.id.new_select17); new_select18 = (Button) findViewById(R.id.new_select18); new_select19 = (Button) findViewById(R.id.new_select19); new_select20 = (Button) findViewById(R.id.new_select20); // *****************Assigning Button variable their Id declare in XML // file ends here***************** // *****************Assigning Image variable their Id declare in XML // file starts here***************** new_selectimage1 = (ImageView) findViewById(R.id.new_selectImage1); new_selectimage2 = (ImageView) findViewById(R.id.new_selectImage2); new_selectimage3 = (ImageView) findViewById(R.id.new_selectImage3); new_selectimage4 = (ImageView) findViewById(R.id.new_selectImage4); new_selectimage5 = (ImageView) findViewById(R.id.new_selectImage5); new_selectimage6 = (ImageView) findViewById(R.id.new_selectImage6); new_selectimage7 = (ImageView) findViewById(R.id.new_selectImage7); new_selectimage8 = (ImageView) findViewById(R.id.new_selectImage8); new_selectimage9 = (ImageView) findViewById(R.id.new_selectImage9); new_selectimage10 = (ImageView) findViewById(R.id.new_selectImage10); new_selectimage11 = (ImageView) findViewById(R.id.new_selectImage11); new_selectimage12 = (ImageView) findViewById(R.id.new_selectImage12); new_selectimage13 = (ImageView) findViewById(R.id.new_selectImage13); new_selectimage14 = (ImageView) findViewById(R.id.new_selectImage14); new_selectimage15 = (ImageView) findViewById(R.id.new_selectImage15); new_selectimage16 = (ImageView) findViewById(R.id.new_selectImage16); new_selectimage17 = (ImageView) findViewById(R.id.new_selectImage17); new_selectimage18 = (ImageView) findViewById(R.id.new_selectImage18); new_selectimage19 = (ImageView) findViewById(R.id.new_selectImage19); new_selectimage20 = (ImageView) findViewById(R.id.new_selectImage20); // ****Assigning Image variable their Id declare in XML file ends // here***************** // **************Creating Dialog to give option to user to new_select // image from gallery or from camera starts here**************** final String[] items = new String[] { "From Camera", "From Gallery" }; ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.select_dialog_item, items); AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("select Image"); builder.setAdapter(adapter, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int item) { if (item == 0) { if (android.os.Environment.getExternalStorageState() .equals(android.os.Environment.MEDIA_MOUNTED)) { Intent intent = new Intent( MediaStore.ACTION_IMAGE_CAPTURE); File file = new File(Environment .getExternalStorageDirectory(), "/AUSRWC/picture" + ".jpg"); mImageCaptureUri = Uri.fromFile(file); try { Toast.makeText(getBaseContext(), "Click Image", Toast.LENGTH_SHORT).show(); intent.putExtra( android.provider.MediaStore.EXTRA_OUTPUT, mImageCaptureUri); intent.putExtra("return-data", true); startActivityForResult(intent, PICK_FROM_CAMERA); } catch (Exception e) { e.printStackTrace(); } } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } dialog.cancel(); } else { Intent intent = new Intent(); Toast.makeText(getBaseContext(), "Select Image", Toast.LENGTH_SHORT).show(); intent.setType("image/*"); intent.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult(Intent.createChooser(intent, "Complete action using"), PICK_FROM_FILE); } } }); dialog = builder.create(); // **************Creating Dialog to give option to user to new_select // image from gallery or from camera ends here**************** final Animation animAlpha = AnimationUtils.loadAnimation(this, R.anim.anim_alpha); // Animation Code for displaying Button // Clicked. // ********************Image 1 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 1; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 1 button code ends // here******************************* // ********************Image 2 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select2.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 2; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 2 button code ends // here******************************* // ********************Image 3 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select3.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 3; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 3 button code ends // here******************************* // ********************Image 4 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select4.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 4; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 4 button code ends // here******************************* // ********************Image 5 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select5.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 5; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 5 button code ends // here******************************* // ********************Image 6 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select6.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 6; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 6 button code ends // here******************************* // ********************Image 7 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select7.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 7; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 7 button code ends // here******************************* // ********************Image 8 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select8.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 8; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 8 button code ends // here******************************* // ********************Image 9 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select9.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 9; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 9 button code ends // here******************************* // ********************Image 10 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select10.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 10; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 10 button code ends // here******************************* // ********************Image 11 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select11.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 11; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 11 button code ends // here******************************* // ********************Image 12 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select12.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 12; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 12 button code ends // here******************************* // ********************Image 13 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select13.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 13; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 13 button code ends // here******************************* // ********************Image 14 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select14.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 14; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 14 button code ends // here******************************* // ********************Image 15 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select15.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 15; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 15 button code ends // here******************************* // ********************Image 16 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select16.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 16; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 16 button code ends // here******************************* // ********************Image 17 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select17.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 17; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 17 button code ends // here******************************* // ********************Image 18 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select18.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 18; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 18 button code ends // here******************************* // ********************Image 19 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select19.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 19; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 19 button code ends // here******************************* // ********************Image 20 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select20.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 20; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 20 button code ends // here******************************* } // *************************When Back Button is Pressed code begins // here************************************* @Override public void onBackPressed() { Toast.makeText(new_upload.this, "Sorry You are not allowed to go back", Toast.LENGTH_SHORT).show(); return; } // *************************When Back Button is Pressed code ends // here************************************* // ***********************To get Path of new_selected Image code starts // here************************************ public String getRealPathFromURI(Uri contentUri) { String[] proj = { MediaStore.Images.Media.DATA }; Cursor cursor = managedQuery(contentUri, proj, null, null, null); if (cursor == null) return null; int column_index = cursor .getColumnIndexOrThrow(MediaStore.Images.Media.DATA); cursor.moveToFirst(); return cursor.getString(column_index); } // ***********************To get Path of new_selected Image code ends // here************************************ // **********************Picture obtained from the camera or from gallery // code starts here************** @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { //path = ""; Log.e("","requestCode="+requestCode); switch (requestCode){ case PICK_FROM_FILE: if (resultCode == Activity.RESULT_OK) { mImageCaptureUri = data.getData(); path = getRealPathFromURI(mImageCaptureUri); // from Gallery Log.e("", "Imagepath from gallery=" + path); if (path == null) path = mImageCaptureUri.getPath(); // from File Manager if (path != null) { dialog1 = ProgressDialog.show(new_upload.this, "", "Processing Please wait...", true); new ImageDisplayTask().execute(); } } break; case PICK_FROM_CAMERA: if (resultCode == Activity.RESULT_OK) { try { path = mImageCaptureUri.getPath(); Log.e("", "Imagepath from Camera =" + path); // bitmap = BitmapFactory.decodeFile(path); } catch (Exception e) { e.printStackTrace(); } if (path != null) { dialog1 = ProgressDialog.show(new_upload.this, "", "Processing Please wait...", true); //new ImageDisplayTask1().execute(); new ImageDisplayTask().execute(); } } break; default: } } // ********************Picture obtained from the camera or from gallery code // ends here********************************************* // ******************Image Display on Button when new_selected from gallery // Ashynch Code starts here******************************** class ImageDisplayTask extends AsyncTask<Void, Void, String> { @Override protected String doInBackground(Void... unsued) { Bitmap src = BitmapFactory.decodeFile(path); Bitmap dest = Bitmap.createBitmap(src.getWidth(), src.getHeight(), Bitmap.Config.ARGB_8888); //Bitmap dest = Bitmap.createScaledBitmap(src, src.getWidth(),src.getHeight(), true); SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss"); String dateTime = sdf.format(Calendar.getInstance().getTime()); // reading local `` String timestamp = dateTime + " " + roadworthynumber; SimpleDateFormat sdf1 = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss"); String dateTime1 = sdf1.format(Calendar.getInstance().getTime()); Imagename = dateTime1.toString().trim().replaceAll(":", "") .replaceAll("-", "").replaceAll(" ", "") + roadworthynumber + ".jpg"; Canvas cs = new Canvas(dest); Paint tPaint = new Paint(); tPaint.setTextSize(100); tPaint.setTypeface(Typeface.SERIF); tPaint.setColor(Color.RED); tPaint.setStyle(Style.FILL); cs.drawBitmap(src, 0f, 0f, null); float height = tPaint.measureText("yY"); cs.drawText(timestamp, 5f, src.getHeight() - height + 5f, tPaint); try { dest.compress(Bitmap.CompressFormat.JPEG, 70, new FileOutputStream(new File(cacheDir, Imagename))); dest.recycle(); src.recycle(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } @Override protected void onProgressUpdate(Void... unsued) { } @Override protected void onPostExecute(String serverresponse) { String error = "noerror"; Display currentDisplay = getWindowManager().getDefaultDisplay(); int dw = currentDisplay.getWidth(); int dh = currentDisplay.getHeight() - 100; Log.e("", "width= " + dw + " Height= " + dh); try { BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options(); bmpFactoryOptions.inJustDecodeBounds = true; Bitmap bmp = BitmapFactory.decodeFile( Environment.getExternalStorageDirectory() + "/AUSRWC/" + Imagename, bmpFactoryOptions); int heightRatio = (int) Math.ceil(bmpFactoryOptions.outHeight / (float) dh); int widthRatio = (int) Math.ceil(bmpFactoryOptions.outWidth / (float) dw); if (heightRatio > 1 && widthRatio > 1) { if (heightRatio > widthRatio) { bmpFactoryOptions.inSampleSize = heightRatio; } else { bmpFactoryOptions.inSampleSize = widthRatio; } } bmpFactoryOptions.inJustDecodeBounds = false; bmp = BitmapFactory.decodeFile( Environment.getExternalStorageDirectory() + "/AUSRWC/" + Imagename, bmpFactoryOptions); if (buttonpressed == 1) { new_selectimage1.setImageBitmap(bmp); //Image set on ImageView } else if (buttonpressed == 2) { new_selectimage2.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 3) { new_selectimage3.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 4) { new_selectimage4.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 5) { new_selectimage5.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 6) { new_selectimage6.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 7) { new_selectimage7.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 8) { new_selectimage8.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 9) { new_selectimage9.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 10) { new_selectimage10.setImageBitmap(bmp); } else if (buttonpressed == 11) { new_selectimage11.setImageBitmap(bmp); } else if (buttonpressed == 12) { new_selectimage12.setImageBitmap(bmp); } else if (buttonpressed == 13) { new_selectimage13.setImageBitmap(bmp); } else if (buttonpressed == 14) { new_selectimage14.setImageBitmap(bmp); } else if (buttonpressed == 15) { new_selectimage15.setImageBitmap(bmp); } else if (buttonpressed == 16) { new_selectimage16.setImageBitmap(bmp); } else if (buttonpressed == 17) { new_selectimage17.setImageBitmap(bmp); } else if (buttonpressed == 18) { new_selectimage18.setImageBitmap(bmp); } else if (buttonpressed == 19) { new_selectimage19.setImageBitmap(bmp); } else if (buttonpressed == 20) { new_selectimage20.setImageBitmap(bmp); } } catch (Exc

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  • Rip and Convert DVD’s to an ISO Image

    - by Mysticgeek
    If you own a lot of DVD’s, you might want to convert them to an ISO image for backup and easily playing them on your media center. Today we take a look at ripping your discs using DVDFab, then using ImgBurn to create an ISO image of the ripped DVD files. Rip DVD with DVDFab6 DVDFab will remove copy protection and rip the DVD files for free. Other components in the suite require you to purchase a license after the 30 day trial, but you’ll still be able to rip DVD’s after the trial. Install DVDFab by accepting the defaults (link below)…a system restart is required to complete the install process. The first time you run it, a welcome screen is displayed. If you don’t want to see it again check the box Do not show again, then Start DVDFab.  Pop the DVD in your drive and click Next. Now select your region and check Do not show again, then OK. It will then open the DVD and begin to scan it. Under DVD to DVD you can select either Full Disc or Main Movie depending on what you want to rip. If you want to burn the DVD to a disc after it’s created select the Full Disc option. Now click the Start button to begin the ripping process. After the ripping process has completed, you’ll get a message telling you it’s waiting for you to put in a blank DVD. Since we aren’t burning the disc, just cancel the message. Click Finish and close out of DVDFab or just minimize it if you’re going to keep using it to rip another DVD. By default the temporary directory is in My Documents \ DVDFab \ Temp…however you can change it in settings. If you go to the Temp directory you’ll see the DVD files listed there… Convert Files to ISO with ImgBurn Now that we have the files ripped from the DVD, we need to convert them to an ISO image using ImgBurn (link below). Open it up and from the main menu click on Create image file from files/folders. Click on the folder icon to browse to the location of the ripped DVD files. Browse to the DVDFab temp directory and the VIDEO_TS folder for the source and click Ok. Then choose a destination directory, give the ISO a name, and click Save. In this case we ripped the Unbreakable DVD, so named it that.   So now in ImgBurn you have the source being the ripped DVD files, and the destination for the ISO…then click the Build button. If you don’t create a volume label, ImgBurn is kind enough to create on for you. If everything looks correct, click Ok. Now wait while ImgBurn goes through the process of converting the ripped DVD files to an ISO image. The process has successfully completed. The ISO image of the DVD will be in the output directory you selected earlier. Now you can burn the ISO image to a blank DVD or store it on an external hard drive for safe keeping. When you’re done, you’ll probably want to go into the temp DVDFab folder and delete the VOB and other files in the Video_TS folder as they will take up a lot of space on your hard drive.   Conclusion Although this method requires two programs to make an ISO out of a DVD, it’s extremely quick. When burning DVD’s of various lengths, it took less than 30 minutes to get the final ISO. Now, you’ll have your DVD movies backed up in case something were to happen to the discs and are no longer playable. If you use Windows Media Center to watch your movies, check out our article on how to automatically mount and view ISO files in Windows 7 Media Center. With DVDFab, you get a 30 day fully functional trial for all of its features. You’ll still be able rip DVD’s even after the 30 day trial has ended. The more we’ve been using DVDFab, the more impressed we are with its capabilities, so after the 30 day trial you should consider purchasing a license. We will have a full review of the of it to share with you soon.  Download DVDFab Download ImgBurn Similar Articles Productive Geek Tips How To Rip DVDs with VLCCalculate with Qalculate on LinuxConvert a Row to a Column in Excel the Easy WayEnjoy Quick & Easy Unit Conversion with Convert for WindowsConvert Older Excel Documents to Excel 2007 Format TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Beware Hover Kitties Test Drive Mobile Phones Online With TryPhone Ben & Jerry’s Free Cone Day, 3/23/10 New Stinger from McAfee Helps Remove ‘FakeAlert’ Threats Google Apps Marketplace: Tools & Services For Google Apps Users Get News Quick and Precise With Newser

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  • How do I prevent my form from freezing when it is loading an image from the web at the click of a button?

    - by Vimal Basdeo
    I want to display an image from the web to a panel in another Jframe at the click of a button but whenever I click the button first the image loads and during this time the current form potentially freezes and once the image has loaded the form is displayed with the image.. How can I avoid the situation where my form freezes since it is very irritating My codes :: My current class private void btn_TrackbusActionPerformed(java.awt.event.ActionEvent evt) { try { sendMessage("Query,map,$,start,211,Arsenal,!"); System.out.println(receiveMessage()); } catch (UnknownHostException ex) { Logger.getLogger(client_Trackbus.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(client_Trackbus.class.getName()).log(Level.SEVERE, null, ex); } catch (Exception ex) { Logger.getLogger(client_Trackbus.class.getName()).log(Level.SEVERE, null, ex); } client_trackedbus nextform=new client_trackedbus(planform,connection,packet_receive,packet_send); this.setVisible(false); this.dispose(); nextform.setVisible(true); // TODO add your handling code here: } My next class that displays the image public class client_trackedbus extends javax.swing.JFrame { client_planform planform=null; DatagramSocket connection=null; DatagramPacket packet_receive=null; DatagramPacket packet_send=null; JLabel label=null; /** Creates new form client_trackedbus */ public client_trackedbus(client_planform planform,DatagramSocket connection,DatagramPacket packet_receive,DatagramPacket packet_send) { initComponents(); this.planform=planform; this.connection=connection; this.packet_receive=packet_receive; this.packet_send=packet_send; try { displayMap("http://www.huddletogether.com/projects/lightbox2/images/image-2.jpg", jPanel1, new JLabel()); } catch (MalformedURLException ex) { Logger.getLogger(client_trackedbus.class.getName()).log(Level.SEVERE, null, ex); } } private void displayMap(String url,JPanel panel,JLabel label) throws MalformedURLException{ URL imageurl=new URL(url); Image image=(Toolkit.getDefaultToolkit().createImage(imageurl)); ImageIcon icon = new ImageIcon(image); label.setIcon(icon); panel.add(label); // System.out.println(panel.getSize().width); this.getContentPane().add(panel); } /** This method is called from within the constructor to * initialize the form. * WARNING: Do NOT modify this code. The content of this method is * always regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code"> private void initComponents() { jPanel1 = new javax.swing.JPanel(); jLabel1 = new javax.swing.JLabel(); btn_Exit = new javax.swing.JButton(); btn_Plan = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setTitle("Public Transport Journey Planner"); javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1); jPanel1.setLayout(jPanel1Layout); jPanel1Layout.setHorizontalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 368, Short.MAX_VALUE) ); jPanel1Layout.setVerticalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 172, Short.MAX_VALUE) ); jLabel1.setFont(new java.awt.Font("Arial", 1, 18)); jLabel1.setText("Your tracked bus"); btn_Exit.setText("Exit"); btn_Exit.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btn_ExitActionPerformed(evt); } }); btn_Plan.setText("Plan journey"); btn_Plan.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btn_PlanActionPerformed(evt); } }); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGap(104, 104, 104) .addComponent(jLabel1)) .addGroup(layout.createSequentialGroup() .addContainerGap() .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(layout.createSequentialGroup() .addGap(65, 65, 65) .addComponent(btn_Plan) .addGap(65, 65, 65) .addComponent(btn_Exit, javax.swing.GroupLayout.PREFERRED_SIZE, 87, javax.swing.GroupLayout.PREFERRED_SIZE))) .addContainerGap(20, Short.MAX_VALUE)) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGap(35, 35, 35) .addComponent(jLabel1) .addGap(18, 18, 18) .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(18, 18, 18) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(btn_Exit) .addComponent(btn_Plan)) .addContainerGap(12, Short.MAX_VALUE)) ); pack(); }// </editor-fold> private void btn_ExitActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: Exitform(); } private void btn_PlanActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: this.setVisible(false); this.dispose(); this.planform.setVisible(true); } private void Exitform(){ this.setVisible(false); this.dispose(); } /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { // new client_trackedbus().setVisible(true); } }); } // Variables declaration - do not modify private javax.swing.JButton btn_Exit; private javax.swing.JButton btn_Plan; private javax.swing.JLabel jLabel1; private javax.swing.JPanel jPanel1; // End of variables declaration }

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  • RAR password recovery on GPU using ATI Stream processor

    - by Wajdy Essam
    Hello, I'm newbie in GPU programming , and i work on brute force RAR Password Recovery on ATI Stream Processor using brook+ language, but i see that the kernel written in brook+ language doesn't allow any calling to normal functions (except kernel functions) , my questions is : 1) how to use unrar.dll (to unrar archive files) API in this situation? and is this the only way to program RAR password recovery? 2) what about crack and ElcomSoft software that use GPU , how they work ? 3) what exactly the role for the function work inside GPU (ATI Stream processor or CUDA) in this program? 4) is nVidia/CUDA technology is easier/more flexible than ATI/brook+ language ?

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  • Combine drivers from multiple Win7 installs to single image

    - by MikeyB
    I need to prepare a Windows 7 image with drivers for multiple systems (Lenovo laptops). I currently have an image prepared on one laptop type but need to grab the drivers appropriate for the other laptop types as well to ensure that it works on all systems. From what I can tell, the procedure will be: create a boot CD with imageX take a .wim image prepared on the first type of systems take .wim images from the other systems mount the other images in WAIK extract the drivers from the other images inject the drivers into the first .wim boot a system with the boot CD and redeploy the updated .wim image into the Windows partition take an image of the drive with usual imaging tools This all seems a little too convoluted, but I'm willing to do it to get the proper drivers into the image. This is (seemingly) necessarily complicated by having more than one OS on the disk image. Am I on the right track?

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  • image appears larger than bounding rectangle?

    - by Kildareflare
    Hello I'm implementing a custom print preview control. One of the objects it needs to display is an image which can be several pages high and wide. I've successfully divided the image into pages and displayed them in the correct order. Each "page" is drawn within the marginbounds. (That is, each page is sized to be the same as the marginBounds.) The problem I have is that the image the page represents exceeds the bottom margin. However if I draw a rectangle with the same dimensions as the image, at the same position as the image, the rectangle matches the marginbounds. Thus when drawn to the page (in print preview and printed page) the image is larger than a rectangle drawn based on the image dimensions. I.e. The image is drawn at the same size as e.MarignBounds and is drawn at e.MarginBounds.Location yet exceeds the bottom margin. How is this? I've checked resoutions at each step of the process and they are all 96DPI. //... private List<Image> m_printImages = new List<Image>(); //... private void ImagePrintDocument_PrintPage(object sender, PrintPageEventArgs e) { PrepareImageForPrinting(e); e.Graphics.DrawImage(m_printImages[m_currentPage], new Point(e.MarginBounds.X, e.MarginBounds.Y); e.Graphics.DrawRectangle(new Pen(Color.Blue, 1.0F), new Rectangle( new Point(e.MarginBounds.X, e.MarginBounds.Y), new Size(m_printImages[m_currentPage].Width, m_printImages[m_currentPage].Height))); //rest of handler } PS Not able to show an image as free image hosting blocked here.

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  • PHP & MySQL Image deletion problem?

    - by IMAGE
    I have this script that deletes a users avatar image that is stored in a folder name thumbs and another named images and the image name is stored in a mysql database. But for some reason the script deletes all the users info for example if the users id is 3 all of the users info like first name last name age and so are deleted as well, basically everything is deleted including the user how do I fix this so only the images and image name is deleted? Here is the code. $user_id = '3'; if (isset($_POST['delete_image'])) { $a = "SELECT * FROM users WHERE avatar = '". $avatar ."' AND user_id = '". $user_id ."'"; $r = mysqli_query ($mysqli, $a) or trigger_error("Query: $a\n<br />MySQL Error: " . mysqli_error($mysqli)); if ($r == TRUE) { unlink("../members/" . $user_id . "/images/" . $avatar); unlink("../members/" . $user_id . "/images/thumbs/" . $avatar); $a = "DELETE FROM users WHERE avatar = '". $avatar ."' AND user_id = '". $user_id ."'"; $r = mysqli_query ($mysqli, $a) or trigger_error("Query: $a\n<br />MySQL Error: " . mysqli_error($mysqli)); } }

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  • Configuring MySQL for Power Failure

    - by Farrukh Arshad
    I have absolutely no experience with databases and MySql. Now the problem is I have an embedded device running a MySQL database with a web based application. The problem is when I shutdown my embedded device it just cut off the power, and I can not have a controlled shutdown. Given this situation how can I configure MySql to prevent it from failures and in case of a failure, I should have maximum support to recover my database. While searching this, I came across InnoDB Engine as well as some configuration options to set like sync_binlog=1 & innodb_flush_log_at_trx_commit=1. I have noticed my default Engine is InnoDB and binary logs are also enabled. What are other configurations to make for best possible failure & recovery support. Updated: I will be using InnoDB engine which supports Transactions. My question is how best I can configure it (InnoDB + MySQL) so that it can provide best possible fail-safe as well as crash recovery mechanism. One configuration option I came across is to enable binary logging which InnoDB uses at the time of recovery. Regards, Farrukh Arshad

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  • Automatic o/s reset on a dedicated internet browsing Windows 7 pc.

    - by camelCase
    I have just purchased a new Acer Revo nettop PC for dedicated internet browsing. It will be the only pc on a home network. My original plan was to install one virtual PC for family browsing, another for remote web based server administration and ban browser use from the host Windows 7 o/s. The idea was that I could recover to a fresh VHD image once a week to eliminate any build up of malware inside the browser VMs. However now I am looking for alternative solutions since the Intel Atom cpu does not have hardware VT support which Windows Virtual PC requires. Would it be possible to engineer some type of routine overnight host o/s wipe and recovery? I guess cyber cafes do something like this? The only user data that would need to be retained across a recovery would be browser bookmarks but these could be exported to remote service. Edit 1: I am thinking the o/s reset could be done via some disk image recovery process. Edit 2: Just had a brainwave. Routine browsing could be done via the new Google Chrome O/S. I have just seen a video of the Google Chrome o/s booting off a usb pen drive in seconds.

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  • Windows Server wbadmin recover with commas

    - by dlp
    I want to do a recovery of files with commas in their names from the command line, ala: wbadmin start recovery -version:10/01/2013-12:00 -itemType:File -overwite:Overwrite -quiet "-Items:C:\Path\To\File, With Comma.txt,C:\Path\To\File 2, With Comma.txt" So there are two files: C:\Path\To\File, With Comma.txt C:\Path\To\File 2, With Comma.txt The problem is wbadmin assumes commas separates each file, so it sees 4 files specified instead of 2. I've tried putting a \ in front of commas that are part of the file names like so: wbadmin start recovery -version:10/01/2013-12:00 -itemType:File -overwite:Overwrite -quiet "-Items:C:\Path\To\File\, With Comma.txt,C:\Path\To\File 2\, With Comma.txt" but it doesn't work, it just says there's a syntax error. The documentation on Technet doesn't seem to mention anything that'll help either. OS is Windows Server 2008 R2. A clarifying comment: I've changed the file names to be different than the actual names to be less revealing, but I also see I dumbed it down too much. The comma can occur either in the file name itself like C:\Path\To\File, With Comma.txt' or in the path to the file, like:C:\Path, To\Other\File.txt`.

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  • DosBox Booting From HDD Image, FreeDOS Image created with qemu-img.

    - by TechZilla
    I'm having trouble booting a HDD image with DosBox. I've only gotten either read errors, or boot failures. The HDD image is a verified working FreeDOS installation, created with qemu-img. The image has been formatted FAT32, and it's working as expected with QEMU. The Image is only 1G in size, and is a flat raw image. I have been able to mount it with Linux, for ease of file transfer. I even was able to boot with DOSEMU, After I mounted the image under Linux. I would love to somehow just boot from the raw image file, but I would have no problem booting from a mount. I just can't get anything to happen, and I have read the Documents over. I have verified DosBox is working as expected, with its included DOSlike environment. I would appreciate any help, as I just don't have much of DosBox experience.

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  • Could replacing an old hard drive's circuit board make it work again?

    - by oscilatingcretin
    I have a 12-year-old, 10gb Maxtor drive that died on me around 7 years ago, but I have not had the heart to throw it away. When the computer powers on, it whirrs silently as it tries to spin up and then it stops. So, a few years ago, I sent it off for professional data recovery. They were able to retrieve quite a bit from it, but I know there's a bunch more there. It only cost $700, so I just chalked up the lackluster recovery effort to "you get what you pay for" considering that most companies will charge you several thousands of dollars for this kind of data recovery. When they sent the drive back, I couldn't help but plug it back in just to see if maybe they unjammed something in the process of disassembling/reassembling the drive. To my surprise, the drive had a much healthier spin-up sound and actually stayed spinning for several minutes before winding down to a halt. Windows is even able to detect and interact with the drive, but I get I/O errors after so many minutes of waiting for it to mount. Before I start doing stupid stuff with it like dropping it on the ground, freezing it, crapping on it, etc, I decided to buy the exact same model off Ebay so that I could swap the circuit boards as a last-ditch effort. While it's en route, I thought I'd come here to ask if this is even a worthwhile effort and, if even remotely so, what should I know before ripping off the old board and slapping on the new?

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  • What's the proper way to prepare chroot to recover a broken Linux installation?

    - by ~quack
    This question relates to questions that are asked often. The procedure is frequently mentioned or linked to offsite, but is not often clearly and correctly stated. In an objective to concentrate useful information in one place, this question seeks to provide a clear, correct reference for this procedure. What are the proper steps to prepare a chroot environment for a recovery procedure? In many situations, repairing a broken Linux installation is best done from within the installation. But if the system won't boot, how do you fix it from within? Let's assume you manage to boot into an alternate system. Once there, you need to access your broken installation in order to fix it. Many recovery How-Tos recommend using chroot in order to run programs as if you are actually booted into the broken installation. What is the basic procedure? Are there accepted best-practices to follow? What variables need to be considered in order to adapt the basic preparation steps to a particular recovery task? As this is Community Wiki, feel free to edit this question to improve it as well.

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  • I just deleted my backup file! How do I save it?

    - by Sammy
    I just accidentally deleted a backup file that I need to restore my system. It's an Acronis True Image TIB file. It was stored at H:\My backups and the name of the file was File_backup_2012-10-18.tib. I did a quick scan with Recuva 1.43.623 and it found the file using the recovery wizard, but it was unable to recover it. The "state" of the file is "unrecoverable". So the resulting file is 0 byte. I am trying to do a deep scan with Recuva right now but it takes a lot of time. If it should fail, what other recovery option do I have? Is there any other good file recovery software that's free to use for home users? I do have a second copy of the whole system partition, but I needed this file backup copy because it is more up to date. That's the file, right there! But why is Recuva unable to recover it?

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  • Super-Charge GIMP’s Image Editing Capabilities with G’MIC [Cross-Platform]

    - by Asian Angel
    Recently we showed you how to enhance GIMP’s image editing power and today we help you super-charge GIMP even more. G’MIC (GREYC’s Magic Image Converter) will add an impressive array of filters and effects to your GIMP installation for image editing goodness. Note: We applied the Contrast Swiss Mask filter to the image shown in the screenshot above to create a nice, warm sunset effect. To add the new PPA open the Ubuntu Software Center, go to the Edit Menu, and select Software Sources. Access the Other Software Tab in the Software Sources Window and add the first of the PPAs shown below (outlined in red). The second PPA will be automatically added to your system. Once you have the new PPAs set up, go back to the Ubuntu Software Center and do a search for “G’MIC”. You will find two listings available and can select either one to add G’MIC to your system (both work equally well). Click on More Info for the listing that you choose and scroll down to where Add-ons are listed. Make sure to select the Add-on listed, click Apply Changes when it appears, and then click Install. We have both shown here for your convenience… When you get ready to use G’MIC to enhance an image, go to the Filters Menu and select G’MIC. A new window will appear where you can select from an impressive array of filters available for your use. Have fun! Command Line Installation For those of you who prefer using the command line for installation use the following commands: sudo add-apt-repository ppa:ferramroberto/gimp sudo apt-get update sudo apt-get install gmic gimp-gmic Links Note: G’MIC is available for Linux, Windows, and Mac. G’MIC PPA at Launchpad [via Web Upd8] G’MIC Homepage at Sourceforge *Downloads for all three platforms available here. Bonus The anime wallpaper shown in the screenshots above can be found here: anime sport [DesktopNexus] Latest Features How-To Geek ETC Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions Access and Manage Your Ubuntu One Account in Chrome and Iron Mouse Over YouTube Previews YouTube Videos in Chrome Watch a Machine Get Upgraded from MS-DOS to Windows 7 [Video] Bring the Whole Ubuntu Gang Home to Your Desktop with this Mascots Wallpaper Hack Apart a Highlighter to Create UV-Reactive Flowers [Science] Add a “Textmate Style” Lightweight Text Editor with Dropbox Syncing to Chrome and Iron

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  • Getting started with object detection - Image segmentation algorithm

    - by Dev Kanchen
    Just getting started on a hobby object-detection project. My aim is to understand the underlying algorithms and to this end the overall accuracy of the results is (currently) more important than actual run-time. I'm starting with trying to find a good image segmentation algorithm that provide a good jump-off point for the object detection phase. The target images would be "real-world" scenes. I found two techniques which mirrored my thoughts on how to go about this: Graph-based Image Segmentation: http://www.cs.cornell.edu/~dph/papers/seg-ijcv.pdf Contour and Texture Analysis for Image Segmentation: http://www.eng.utah.edu/~bresee/compvision/files/MalikBLS.pdf The first one was really intuitive to understand and seems simple enough to implement, while the second was closer to my initial thoughts on how to go about this (combine color/intensity and texture information to find regions). But it's an order of magnitude more complex (at least for me). My question is - are there any other algorithms I should be looking at that provide the kind of results that these two, specific papers have arrived at. Are there updated versions of these techniques already floating around. Like I mentioned earlier, the goal is relative accuracy of image segmentation (with an eventual aim to achieve a degree of accuracy of object detection) over runtime, with the algorithm being able to segment an image into "naturally" or perceptually important components, as these two algorithms do (each to varying extents). Thanks! P.S.1: I found these two papers after a couple of days of refining my search terms and learning new ones relevant to the exact kind of techniques I was looking for. :) I have just about reached the end of my personal Google creativity, which is why I am finally here! Thanks for the help. P.S.2: I couldn't find good tags for this question. If some relevant ones exist, @mods please add them. P.S.3: I do not know if this is a better fit for cstheory.stackexchange (or even cs.stackexchange). I looked but cstheory seems more appropriate for intricate algorithmic discussions than a broad question like this. Also, I couldn't find any relevant tags there either! But please do move if appropriate.

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  • xen-create-image does not create inird or initramfs image and domU does not starts with system image

    - by user219372
    I have Fedora 19 as Dom0. To create image I run # xen-create-image --hostname=debian-wheezy --memory=512Mb --dhcp --size=20Gb --swap=512Mb --dir=/xen --arch=amd64 --dist=wheezy After generation finished I start vm and see: # xl create /etc/xen/debian-wheezy.cfg Parsing config from /etc/xen/debian-wheezy.cfg libxl: error: libxl_dom.c:409:libxl__build_pv: xc_dom_ramdisk_file failed: No such file or directory libxl: error: libxl_create.c:919:domcreate_rebuild_done: cannot (re-)build domain: -3 In the /etc/xen/debian-wheezy.cfg i have # # Kernel + memory size # kernel = '/boot/vmlinuz-3.11.2-201.fc19.x86_64' ramdisk = '/boot/initrd.img-3.11.2-201.fc19.x86_64' and ls -1 /boot/*201* shows /boot/config-3.11.2-201.fc19.x86_64 /boot/initramfs-3.11.2-201.fc19.x86_64.img /boot/System.map-3.11.2-201.fc19.x86_64 /boot/vmlinuz-3.11.2-201.fc19.x86_64 Then if I fix ramdisk directive in .cfg file to /boot/initramfs-3.11.2-201.fc19.x86_64.img vm will start but os inside will not boot. In a tail of xl console I get [ OK ] Reached target Basic System. dracut-initqueue[130]: Warning: Could not boot. dracut-initqueue[130]: Warning: /dev/disk/by-uuid/085883ad-73ca-45cc-8bc5-e6249f869b26 does not exist dracut-initqueue[130]: Warning: /dev/fedora/root does not exist dracut-initqueue[130]: Warning: /dev/fedora/swap does not exist dracut-initqueue[130]: Warning: /dev/mapper/fedora-root does not exist dracut-initqueue[130]: Warning: /dev/mapper/fedora-swap does not exist dracut-initqueue[130]: Warning: /dev/xvda2 does not exist Starting Dracut Emergency Shell... Warning: /dev/disk/by-uuid/085883ad-73ca-45cc-8bc5-e6249f869b26 does not exist Warning: /dev/fedora/root does not exist Warning: /dev/fedora/swap does not exist Warning: /dev/mapper/fedora-root does not exist Warning: /dev/mapper/fedora-swap does not exist Warning: /dev/xvda2 does not exist Generating "/run/initramfs/sosreport.txt" Entering emergency mode. Exit the shell to continue. Type "journalctl" to view system logs. You might want to save "/run/initramfs/sosreport.txt" to a USB stick or /boot after mounting them and attach it to a bug report. dracut:/# .img files in /xen/domains/debian-wheezy exists and listed in disk section of debian-wheezy.cfg So what should i do? Update: I've found that xl does not mount images. In debian-wheezy.cfg I have that: root = '/dev/xvda2 ro' disk = [ 'file:/xen/domains/debian-wheezy/disk.img,xvda2,w', 'file:/xen/domains/debian-wheeze/swap.img,xvda1,w', ] And there is no /dev/xvda* or /dev/sda* or /dev/hda* files in VM.

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  • Fragmented Log files could be slowing down your database

    - by Fatherjack
    Something that is sometimes forgotten by a lot of DBAs is the fact that database log files get fragmented in the same way that you get fragmentation in a data file. The cause is very different but the effect is the same – too much effort reading and writing data. Data files get fragmented as data is changed through normal system activity, INSERTs, UPDATEs and DELETEs cause fragmentation and most experienced DBAs are monitoring their indexes for fragmentation and dealing with it accordingly. However, you don’t hear about so many working on their log files. How can a log file get fragmented? I’m glad you asked. When you create a database there are at least two files created on the disk storage; an mdf for the data and an ldf for the log file (you can also have ndf files for extra data storage but that’s off topic for now). It is wholly possible to have more than one log file but in most cases there is little point in creating more than one as the log file is written to in a ‘wrap-around’ method (more on that later). When a log file is created at the time that a database is created the file is actually sub divided into a number of virtual log files (VLFs). The number and size of these VLFs depends on the size chosen for the log file. VLFs are also created in the space added to a log file when a log file growth event takes place. Do you have your log files set to auto grow? Then you have potentially been introducing many VLFs into your log file. Let’s get to see how many VLFs we have in a brand new database. USE master GO CREATE DATABASE VLF_Test ON ( NAME = VLF_Test, FILENAME = 'C:\Program Files\Microsoft SQL Server\MSSQL10.ROCK_2008\MSSQL\DATA\VLF_Test.mdf', SIZE = 100, MAXSIZE = 500, FILEGROWTH = 50 ) LOG ON ( NAME = VLF_Test_Log, FILENAME = 'C:\Program Files\Microsoft SQL Server\MSSQL10.ROCK_2008\MSSQL\DATA\VLF_Test_log.ldf', SIZE = 5MB, MAXSIZE = 250MB, FILEGROWTH = 5MB ); go USE VLF_Test go DBCC LOGINFO; The results of this are firstly a new database is created with specified files sizes and the the DBCC LOGINFO results are returned to the script editor. The DBCC LOGINFO results have plenty of interesting information in them but lets first note there are 4 rows of information, this relates to the fact that 4 VLFs have been created in the log file. The values in the FileSize column are the sizes of each VLF in bytes, you will see that the last one to be created is slightly larger than the others. So, a 5MB log file has 4 VLFs of roughly 1.25 MB. Lets alter the CREATE DATABASE script to create a log file that’s a bit bigger and see what happens. Alter the code above so that the log file details are replaced by LOG ON ( NAME = VLF_Test_Log, FILENAME = 'C:\Program Files\Microsoft SQL Server\MSSQL10.ROCK_2008\MSSQL\DATA\VLF_Test_log.ldf', SIZE = 1GB, MAXSIZE = 25GB, FILEGROWTH = 1GB ); With a bigger log file specified we get more VLFs What if we make it bigger again? LOG ON ( NAME = VLF_Test_Log, FILENAME = 'C:\Program Files\Microsoft SQL Server\MSSQL10.ROCK_2008\MSSQL\DATA\VLF_Test_log.ldf', SIZE = 5GB, MAXSIZE = 250GB, FILEGROWTH = 5GB ); This time we see more VLFs are created within our log file. We now have our 5GB log file comprised of 16 files of 320MB each. In fact these sizes fall into all the ranges that control the VLF creation criteria – what a coincidence! The rules that are followed when a log file is created or has it’s size increased are pretty basic. If the file growth is lower than 64MB then 4 VLFs are created If the growth is between 64MB and 1GB then 8 VLFs are created If the growth is greater than 1GB then 16 VLFs are created. Now the potential for chaos comes if the default values and settings for log file growth are used. By default a database log file gets a 1MB log file with unlimited growth in steps of 10%. The database we just created is 6 MB, let’s add some data and see what happens. USE vlf_test go -- we need somewhere to put the data so, a table is in order IF OBJECT_ID('A_Table') IS NOT NULL DROP TABLE A_Table go CREATE TABLE A_Table ( Col_A int IDENTITY, Col_B CHAR(8000) ) GO -- Let's check the state of the log file -- 4 VLFs found EXECUTE ('DBCC LOGINFO'); go -- We can go ahead and insert some data and then check the state of the log file again INSERT A_Table (col_b) SELECT TOP 500 REPLICATE('a',2000) FROM sys.columns AS sc, sys.columns AS sc2 GO -- insert 500 rows and we get 22 VLFs EXECUTE ('DBCC LOGINFO'); go -- Let's insert more rows INSERT A_Table (col_b) SELECT TOP 2000 REPLICATE('a',2000) FROM sys.columns AS sc, sys.columns AS sc2 GO 10 -- insert 2000 rows, in 10 batches and we suddenly have 107 VLFs EXECUTE ('DBCC LOGINFO'); Well, that escalated quickly! Our log file is split, internally, into 107 fragments after a few thousand inserts. The same happens with any logged transactions, I just chose to illustrate this with INSERTs. Having too many VLFs can cause performance degradation at times of database start up, log backup and log restore operations so it’s well worth keeping a check on this property. How do we prevent excessive VLF creation? Creating the database with larger files and also with larger growth steps and actively choosing to grow your databases rather than leaving it to the Auto Grow event can make sure that the growths are made with a size that is optimal. How do we resolve a situation of a database with too many VLFs? This process needs to be done when the database is under little or no stress so that you don’t affect system users. The steps are: BACKUP LOG YourDBName TO YourBackupDestinationOfChoice Shrink the log file to its smallest possible size DBCC SHRINKFILE(FileNameOfTLogHere, TRUNCATEONLY) * Re-size the log file to the size you want it to, taking in to account your expected needs for the coming months or year. ALTER DATABASE YourDBName MODIFY FILE ( NAME = FileNameOfTLogHere, SIZE = TheSizeYouWantItToBeIn_MB) * – If you don’t know the file name of your log file then run sp_helpfile while you are connected to the database that you want to work on and you will get the details you need. The resize step can take quite a while This is already detailed far better than I can explain it by Kimberley Tripp in her blog 8-Steps-to-better-Transaction-Log-throughput.aspx. The result of this will be a log file with a VLF count according to the bullet list above. Knowing when VLFs are being created By complete coincidence while I have been writing this blog (it’s been quite some time from it’s inception to going live) Jonathan Kehayias from SQLSkills.com has written a great article on how to track database file growth using Event Notifications and Service Broker. I strongly recommend taking a look at it as this is going to catch any sneaky auto grows that take place and let you know about them right away. Hassle free monitoring of VLFs If you are lucky or wise enough to be using SQL Monitor or another monitoring tool that let’s you write your own custom metrics then you can keep an eye on this very easily. There is a custom metric for VLFs (written by Stuart Ainsworth) already on the site and there are some others there are very useful so take a moment or two to look around while you are there. Resources MSDN – http://msdn.microsoft.com/en-us/library/ms179355(v=sql.105).aspx Kimberly Tripp from SQLSkills.com – http://www.sqlskills.com/BLOGS/KIMBERLY/post/8-Steps-to-better-Transaction-Log-throughput.aspx Thomas LaRock at Simple-Talk.com – http://www.simple-talk.com/sql/database-administration/monitoring-sql-server-virtual-log-file-fragmentation/ Disclosure I am a Friend of Red Gate. This means that I am more than likely to say good things about Red Gate DBA and Developer tools. No matter how awesome I make them sound, take the time to compare them with other products before you contact the Red Gate sales team to make your order.

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  • How do I recover a BTRFS filesystem with "parent transid verify failed" errors?

    - by Evan P.
    I've got an external USB disk running btrfs. I use it for backups, and each time I do a backup I take a snapshot. However, it's giving me this error now: parent transid verify failed on 109973766144 wanted 1823 found 1821 parent transid verify failed on 109973766144 wanted 1823 found 1821 Obviously, this is a non-critical disk, but I have a few files on here that aren't available elsewhere. Is there any way to recover data from this disk? Maybe by mounting one of the snapshots as root?

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  • Is It Possible To Recover A Partial LVM Logical Volume?

    - by Terry Wang
    Background It is an Ubuntu 12.04 VirtualBox VM with 5 virtual HDDs (VDI), NOTE this is just a test VM, so not well planned ahead: ubuntu.vdi for / (/dev/mapper/ubuntu-root AKA /dev/ubuntu/root) and /home (/dev/mapper/ubuntu-home) weblogic.vdi - /dev/sdb (mounted on /bea for weblogic and other stuff) btrfs1.vdi - /dev/sdc (part of btrfs -m raid1 -d raid1 configuration) btrfs2.vdi - /dev/sdd (part of btrfs -m raid1 -d raid1 configuration) more.vdi - /dev/sde (added this virtual HDD because / ran out of inodes and it wasn't easy to figure out what to delete so as to free up inodes, so I just added the new virtual HDD, created PV, added it to existing volume group ubuntu, grew the root logical volume to work around the inode issue -_-) What happened? Last Friday, before finishing up I wanted to free up some disk space on that box, for some reason I thought the more.vdi was useless and tried to detach it from the VM, I then clicked delete (should have clicked keep files damn!) by mistake when detaching. Unfortunately I didn't have backup for it. All too late. What I have tried Tried to undelete (use testdisk and photorec) the vdi files but it takes too long and recovered heaps of .vdi files that I didn't want (huge, filled the disk, damn!). I finally gave up. Fortunately most of data is on separate ext4 partition and btrfs volumes. Out of curiosity, I still tried to mount the logical volumes and see if it is possible to at least recover the /var and /etc I tried to use system rescue cd to boot and activate the volume groups, I got: Couldn't find device with uuid xxxx. Refusing activation of the partial LV root. Use --partial to override. 1 logical volume(s) in volume group "ubuntu" now active. I was able to mount home LV but not root LV. I am wondering if it is possible to access the root LV any more. Under the bonnet, data (on LV root - /) was striped to more.vdi (PV), I know it's almost impossible to to recover. But I am still curious about how system administrator/DevOps guys deal with this sort of situation;-) Thanks in advance.

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  • sudo dhclient eth0 | sudo: unable to resolve host ubuntu

    - by Merianos Nikos
    I have a computer of a friend of mine, that runs Ubuntu (I don't know what version, due to the current system status) and while he was updating the kernel, he reboot the computer (yes that could be happen !!, anyway) Currently I am trying to recover the system by using a live USB, with Ubuntu installed on it. What I am doing, is the following: Update Failure The problem is that when I try to execute the fifth step, I am getting error because I do not have Internet access. The computer is properly wired on my rooter, and I have Internet access in any place apart of the shell. This message for example is send it via the live USB. but I cannot access the Internet via the shell. In my shell I try to use this command: sudo dhclient eth0 but the result of this command is the following message sudo: unable to resolve host ubuntu My hosts file has the following content: 127.0.0.1 localhost 127.0.1.1 ubuntu # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts how can I get connected on the Internet, in order to download the appropriate updates ? UPDATE 1 I just notice, that when I execute the ifconfig I am getting the following warning: Warning: cannot open /proc/net/dev (No such file or directory). Limited output. UPDATE 2 I just found that, and looks like solving the problem with dhclient eth0 command, but still I cannot ping Google UPDATE 3 Now the sudo dhclient eth0 returns the following message: RTNETLINK answers: File exists UPDATE 4 I just ping my rooter and I getting response, so, it is looks like I cannot ping outside the rooter (ie. Google) Kind regards ...

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  • Cluster Nodes as RAID Drives

    - by BuckWoody
    I'm unable to sleep tonight so I thought I would push this post out VERY early. When you don't sleep your mind takes interesting turns, which can be a good thing. I was watching a briefing today by a couple of friends as they were talking about various ways to arrange a Windows Server Cluster for SQL Server. I often see an "active" node of a cluster with a "passive" node backing it up. That means one node is working and accepting transactions, and the other is not doing any work but simply "standing by" waiting for the first to fail over. The configuration in the demonstration I saw was a bit different. In this example, there were three nodes that were actively working, and a fourth standing by for all three. I've put configurations like this one into place before, but as I was looking at their architecture diagram, it looked familar - it looked like a RAID drive setup! And that's not a bad way to think about your cluster arrangements. The same concerns you might think about for a particular RAID configuration provides a good way to think about protecting your systems in general. So even if you're not staying awake all night thinking about SQL Server clusters, take this post as an opportunity for "lateral thinking" - a way of combining in your mind the concepts from one piece of knowledge to another. You might find a new way of making your technical environment a little better. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • Raid 5 mdadm Problem - Help Please

    - by user66260
    My Raid 5 array (4 1tb Disks WD10EARS) had was showing as degraded. I looked and one of the disks wasnt installed, so i re-added it with the mdadm add command. the array is now showing as (null)Array , but cant be mounted if i run: root@warren-P5K-E:/home/warren# sudo mdadm --misc --detail /dev/md0 I get: mdadm: cannot open /dev/md0: No such file or directory and running: root@warren-P5K-E:/home/warren# cat /proc/mdstat gives me: Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] unused devices: < none > The data is very important root@warren-P5K-E:/home/warren# mdadm --examine /dev/sda /dev/sda: Magic : a92b4efc Version : 0.90.00 UUID : 00000000:00000000:00000000:00000000 Creation Time : Sat May 26 12:08:14 2012 Raid Level : -unknown- Raid Devices : 0 Total Devices : 4 Preferred Minor : 0 Update Time : Sat May 26 12:08:40 2012 State : active Active Devices : 0 Working Devices : 4 Failed Devices : 0 Spare Devices : 4 Checksum : 82d5b792 - correct Events : 1 Number Major Minor RaidDevice State this 1 8 0 1 spare /dev/sda 0 0 8 16 0 spare /dev/sdb 1 1 8 0 1 spare /dev/sda 2 2 8 32 2 spare /dev/sdc 3 3 8 48 3 spare /dev/sdd root@warren-P5K-E:/home/warren# mdadm --examine /dev/sdb /dev/sdb: Magic : a92b4efc Version : 0.90.00 UUID : 00000000:00000000:00000000:00000000 Creation Time : Sat May 26 12:08:14 2012 Raid Level : -unknown- Raid Devices : 0 Total Devices : 4 Preferred Minor : 0 Update Time : Sat May 26 12:08:40 2012 State : active Active Devices : 0 Working Devices : 4 Failed Devices : 0 Spare Devices : 4 Checksum : 82d5b7a0 - correct Events : 1 Number Major Minor RaidDevice State this 0 8 16 0 spare /dev/sdb 0 0 8 16 0 spare /dev/sdb 1 1 8 0 1 spare /dev/sda 2 2 8 32 2 spare /dev/sdc 3 3 8 48 3 spare /dev/sdd root@warren-P5K-E:/home/warren# oot@warren-P5K-E:/home/warren# mdadm --examine /dev/sdc /dev/sdc: Magic : a92b4efc Version : 0.90.00 UUID : 00000000:00000000:00000000:00000000 Creation Time : Sat May 26 12:08:14 2012 Raid Level : -unknown- Raid Devices : 0 Total Devices : 4 Preferred Minor : 0 Update Time : Sat May 26 12:08:40 2012 State : active Active Devices : 0 Working Devices : 4 Failed Devices : 0 Spare Devices : 4 Checksum : 82d5b7b4 - correct Events : 1 Number Major Minor RaidDevice State this 2 8 32 2 spare /dev/sdc 0 0 8 16 0 spare /dev/sdb 1 1 8 0 1 spare /dev/sda 2 2 8 32 2 spare /dev/sdc 3 3 8 48 3 spare /dev/sdd root@warren-P5K-E:/home/warren# mdadm --examine /dev/sdd /dev/sdd: Magic : a92b4efc Version : 0.90.00 UUID : 00000000:00000000:00000000:00000000 Creation Time : Sat May 26 12:08:14 2012 Raid Level : -unknown- Raid Devices : 0 Total Devices : 4 Preferred Minor : 0 Update Time : Sat May 26 12:08:40 2012 State : active Active Devices : 0 Working Devices : 4 Failed Devices : 0 Spare Devices : 4 Checksum : 82d5b7c6 - correct Events : 1 Number Major Minor RaidDevice State this 3 8 48 3 spare /dev/sdd 0 0 8 16 0 spare /dev/sdb 1 1 8 0 1 spare /dev/sda 2 2 8 32 2 spare /dev/sdc 3 3 8 48 3 spare /dev/sdd That on the 4 drives.

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  • Troubleshoot broken ZFS

    - by BBK
    I have one zpool called tank in RaidZ1 with 5x1TB SATA HDDs. I'm using Ubuntu Server 11.10 Oneric, kernel 3.0.0-15-server. Installed ZFS from ppa also I'm using zfs-auto-snapshot. The ZFS file system when zfs module loaded to the kernel hangs my computer. Before it I created few new file systems: zfs create -V 10G tank/iscsi1 zfs create -V 10G tank/iscsi2 zfs create -V 10G tank/iscsi3 I shared them through iSCSI by /dev/tank/iscsiX path. And my computer started to hanging sometimes when I used tank/iscsiX by iSCSI, do not know why exactly. I switched off iSCSI and started to remove this file systems: zfs destroy tank/iscsi3 I'm also using zfs-auto-snapshot so I had snapshots and without -r key my command not destroying the FS. So I issued next command: zfs destroy tank/iscsi3 -r The tank/iscsi3 FS was clean and contain nothing - it was destroyed without an issue. But tank/iscsi2 and tank/iscsi1 contained a lot of information. I tried zfs destroy tank/iscsi2 -r After some time my computer hang out. I rebooted computer. It didn't boot very fast, HDDs starts working like a crazy making a lot of noise, after 15 minutes HDDs stopped go crazy and OS booted at last. All seems to be ok - tank/iscsi2 was destroyed. After file systems at the tank was accessible, zpool status showed no corruption. I issued new command: zfs destroy tank/iscsi1 -r Situation was repeated - after some time my computer hang out. But this time ZFS seams not to healed itself. After computer switched on it started to work: loading scripts and kernel modules, after zfs starting to work it hanging my computer. I need to recover else ZFS file systems which lying in the same zpool. Few month ago I backup OS to flash drive. Booting from backed-up OS and import have the same results - OS starts hanging. How to recover my data at ZFS tank?

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