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  • CD/DVD WRITER I/O ERROR !!!

    - by bobby
    http://www.mediafire.com/imageview.php?quickkey=jqzdbd5n0nl i am getting the above error wen i am trying to burn a cd/dvd on my dvd writer. im am getting dis error for evry cd/dvd..!! i hv included a screenshot.above.

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  • High mysql server load, sar output

    - by eric
    I have a MySQL Server that should be performing better than it seems to be. We're running ubuntu on a Amazon Cluster Compute (cc1.4xlarge) Linux ip-10-0-1-60 3.2.0-25-virtual #40-Ubuntu SMP Wed May 23 22:20:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise I have several output files from sar that i'm not really sure how to interpret. For example, I ran: # Individual block device I/O activities sar -d 1 180 > logs/block_device_io.log & which gave me what looks like really high utilisation of my disk (turns out this block device maps to /dev/xvdh on /var/lib/mysql type ext4 (rw,_netdev) The output from my log: 10:48:59 PM DEV tps rd_sec/s wr_sec/s avgrq-sz avgqu-sz await svctm %util 10:49:00 PM dev202-16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:49:00 PM dev202-32 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:49:00 PM dev8-0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:49:00 PM dev202-112 1008.00 31040.00 1416.00 32.20 1.02 1.01 0.89 90.00 10:49:00 PM dev202-80 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Am I wrong in thinking this is a problem? I have it above 90% almost the entire time we're seeing slowness. Or does this just mean MySQL is doing what it's supposed to do?

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  • HP Storageworks 448 tape drive input/output error with Ubuntu

    - by Dan D
    I'm trying to set a backup to tape of a machine using flexbackup. However any attempt to write to the tape drive (via either flexbackup or just tar) results in "/dev/st0: Input/output error" The machine seems to recognise the drive (HP Storageworks Ultrium 448) and that there's a tape in it and "mt status" seems to work... "mt -f /dev/st0 rewind" or "erase" throw no errors... root@stor001:/# mt status SCSI 2 tape drive: File number=0, block number=0, partition=0. Tape block size 0 bytes. Density code 0x42 (LTO-2). Soft error count since last status=0 General status bits on (41010000): BOT ONLINE IM_REP_EN root@stor001:/# cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: HL-DT-ST Model: DVDRAM GSA-4084N Rev: KS02 Type: CD-ROM ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 03 Lun: 00 Vendor: HP Model: Ultrium 2-SCSI Rev: S65D Type: Sequential-Access ANSI SCSI revision: 03 "tell" does however root@stor001:/# mt -f /dev/st0 tell /dev/st0: Input/output error Based on a forum post I found, I tried: root@stor001:/# dd if=/dev/zero of=/dev/nst0 bs=1024 count=10 10+0 records in 10+0 records out 10240 bytes (10 kB) copied, 5.0815 s, 2.0 kB/s which gave the person on the forum an error but seems to work for me. If anyone has any suggestions, I'm all ears...

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  • Looking for a comprehensive/"expert" guide to BCD parameters

    - by Stilez
    I'm interested in educating myself about BCD on Windows 8. There are many, many "walkthrough" guides" and "howtos", but I can't find any guides at typical "enthusiast" level covering what each option or argument in a BCD /ENUM dump might mean, and the principles governing how these all work together. Imagine trying to rebuild or debug BCD (including EFI/BIOS variants and recovery/hibernate/memtest sections, and perhaps multiple boot Windows/WinPE/WinRE) from scratch using just BCDedit + DiskPart, and trying to understand rather than just copy/pasting commands. That's roughly the knowledge I'm after. Example questions might be: How is a BCD /ENUM dump to be read, item by item? How do its sections work together? (A lot of guides only show a specific example rather than explaining all the all common args that can exist and what they mean, they don't actually explain how sections work together, or they assume MBR/BIOS/Vista/7 and omit info needed for EFI/GPT/Dynamic disks/8) Partitions are specified by volume letter or as a \Device\HarddiskVolumeNNN. Why does it sometimes show these items as a letter and sometimes as a GUID? What are the practical differences if any? What exactly is syntax like "ramdisk=[C:]\Images\winpe.wim,{ramdiskoptions}" saying, and how will the drive letter "C" be interpreted at runtime in a line like this? Is the drive in such a line always "C:" (most examples assume so) and if not, when wouldn't it be? Many websites state that an sdi device and path may be needed in some sections of BCD, but what is sdi and what are these args doing when they appear? How does the GUID to HDD volume/partition mapping work under EFI/GPT? So that if disks or partitions/volumes change it's clear how one can confirm from basic principles whether data shown in BCD /ENUM ALL is still correct or not. Does anyone know of a suitable reference source for this kind of raw BCD data and structures? Thanks!

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  • VMWare Server - Writing files to virtual hard drive performance

    - by Ardman
    We have just moved our infrastructure from physical servers to virtual machines. Everything is running great and we are happy with the result of the move. We have identified one problem, and that is reading/writing performance. We have an application that compiles files and writes to disk. This is considerably slower on the new virtual machines compared to the physical machines. Is there a performance bottleneck when writing to a virtual hard drive compared to a physical hard drive?

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  • PHP output buffer settings ignored by server

    - by Ecom Evolution
    I have been trying to flush the output of certain scripts to the browser on demand, but they do not work on our production server. For instance, I tried running the "Phoca Changing Collation tool" (find it on Google) and I don't see any output until the script finishes executing. I've tried immediately flushing the buffer on other scripts that work fine on any server but this one using the following code: echo "something"; ob_flush(); flush(); Setting "ob_implicit_flush(1);" doesn't help either. The server is Apache 2.2.21 with PHP 5.2.17 running on Linux. You can see our php.ini file here if that will help: http://www.smallfiles.org/download/1123/php.ini.html This isn't the only problem we are having with the server ignoring in-script directives. The server also ignores timeout coding such as: ini_set('max_execution_time', 900*60); AND set_time_limit(86400); Script always times out at the php.ini default. Doesn't seem to matter if script is executed in IE or Firefox. Tried "ini_set('zlib.output_compression_level', 'Off');" and checked that it is "Off" in the php.ini file. The code "apache_setenv('no-gzip', 1);" causes a fatal error so tried uploading a .htaccess file with the "mod_gzip_on No" directive. Neither helps. Tried running Apache as fcgi and suphp, but same results. Server is NOT in safe mode. Pullin ma hair out!

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  • Ignoring GET parameters in Varnish VCL

    - by JamesHarrison
    Okay: I've got a site set up which has some APIs we expose to developers, which are in the format /api/item.xml?type_ids=34,35,37&region_ids=1000002,1000003&key=SOMERANDOMALPHANUM In this URI, type_ids is always set, region_ids and key are optional. The important thing to note is that the key variable does not affect the content of the response. It is used for internal tracking of requests so we can identify people who make slow or otherwise unwanted requests. In Varnish, we have a VCL like this: if (req.http.host ~ "the-site-in-question.com") { if (req.url ~ "^/api/.+\.xml") { unset req.http.cookie; } } We just strip cookies out and let the backend do the rest as far as times are concerned (this is a hackaround since Rails/authlogic sends session cookies with API responses). At present though, any distinct developers are basically hitting different caches since &key=SOMEALPHANUM is considered as part of the Varnish hash for storage. This is obviously not a great solution and I'm trying to work out how to tell Varnish to ignore that part of the URI.

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  • VMWare - Writing files to virtual hard drive performance

    - by Ardman
    We have just moved our infrastructure from physical servers to virtual machines. Everything is running great and we are happy with the result of the move. We have identified one problem, and that is reading/writing performance. We have an application that compiles files and writes to disk. This is considerably slower on the new virtual machines compared to the physical machines. Is there a performance bottleneck when writing to a virtual hard drive compared to a physical hard drive?

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  • Iterating through folders and files in batch file?

    - by Will Marcouiller
    Here's my situation. A project has as objective to migrate some attachments to another system. These attachments will be located to a parent folder, let's say "Folder 0" (see this question's diagram for better understanding), and they will be zipped/compressed. I want my batch script to be called like so: BatchScript.bat "c:\temp\usd\Folder 0" I'm using 7za.exe as the command line extraction tool. What I want my batch script to do is to iterate through the "Folder 0"'s subfolders, and extract all of the containing ZIP files into their respective folder. It is obligatory that the files extracted are in the same folder as their respective ZIP files. So, files contained in "File 1.zip" are needed in "Folder 1" and so forth. I have read about the FOR...DO command on Windows XP Professional Product Documentation - Using Batch Files. Here's my script: @ECHO OFF FOR /D %folder IN (%%rootFolderCmdLnParam) DO FOR %zippedFile IN (*.zip) DO 7za.exe e %zippedFile I guess that I would also need to change the actual directory before calling 7za.exe e %zippedFile for file extraction, but I can't figure out how in this batch file (through I know how in command line, and even if I know it is the same instruction "cd"). Anyone's help is gratefully appreciated.

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  • CPU I/O communication part 2

    - by b-gen-jack-o-neill
    Hi, I was suggested when I have some further questions on my older ones, to create newer Question and reffer to old one. So, this is the original question: CPU I/O communication OK, I have just 2 more questions. 1, How is MMIO set? I mean, lets say I have developed some extension card with PCI interface. How do you say to memory controller to redirect desired memory space to my card´s RAM? I mean, I think standart text-mode VGA MMIO adress is 0x8000. Is this HW set (every motherboard automatically redirects 0x8000 adress to PCI-E) or its just standart and can be changed (VGA says to motherboard: give me memory mapped IO at 0x8000) 2, Can one expansion card have more MMIO connections? I mean, lets say I have card with 10 Bytes of RAM. Can Bytes 0-4 be mapped to 0x0 and bytes 5-9 to 0x5000? Please, if you know about some good article about this, please post link. Thanks.

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  • how to run a program using command line with parameters on mac os x

    - by user36089
    Hello everyone I try to use APIKit http://ericasadun.com/2009/12/apikit-goes-beta/ to scan my codes to detect if there is private api. apiscanner should run as apiscanner ~/Desktop/MyPath/myapp.app I used command 'cd' go to the directory where apiscanner is. But if I call apiscanner ~/Desktop/MyPath/MyApp.app Last login: Sun Jun 13 07:22:07 on ttys002 unknown required load command 0x80000022 Trace/BPT trap logout Even I copy file 'apiscanner' and 'doit' to MyPath, the execute same problem I think there is somethin wrong when I run apiscanner under mac osx Welcome any comment Thanks interdev

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  • Postfix + procmail - delivery fails because "can't create user output file" - on CentOS 6.2

    - by jshin47
    I verified that my postfix installation / relaying setup worked. Now I am having trouble with procmail. I have it wired to postfix with the following command: mailbox_command = /usr/bin/procmail -f -a "$USER" I have nothing in my procmail config but the following: LOGFILE=/var/procmailrc/log And I send an email to a recipient that previously worked (before I attached procmail). Now it fails with error: Apr 6 14:07:05 localhost postfix/qmgr[15194]: D0C3DFF6E1: from=<[email protected]>, size=938, nrcpt=1 (queue active) Apr 6 14:07:05 localhost postfix/local[1953]: D0C3DFF6E1: to=<[email protected]>, orig_to=<postmaster>, relay=local, delay=0.05, delays=0.02/0.01/0/0.02, dsn=5.2.0, status=bounced (can't create user output file. Command output: procmail: Couldn't create "/var/spool/mail/nobody" procmail: Couldn't read "//root" ) Apr 6 14:07:05 localhost postfix/bounce[1955]: warning: D0C3DFF6E1: undeliverable postmaster notification discarded Apr 6 14:07:05 localhost postfix/qmgr[15194]: D0C3DFF6E1: removed It seems like there is some sort of permissions issue but I do not know what the problem is, nor do I understand how I would go about diagnosing it further. The logfile that I specified is empty, by the way. How can I make procmail+postfix work?

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  • FreeNX 0.7.3 under CentOS 6.3 - Negotiating link parameters

    - by Frank
    since some days I try to get freenx (CentOS package 0.7.3) running under CentOS 6.3. It is like found on many websites: First login is successfull, after that all login attempts fail with the negotiation error. A simple ssh with the same username to the server is successful. For the installation I followed the howTo on http://wiki.centos.org/HowTos/FreeNX Strange is that the changelog of FreeNX 0.7.3 tells that this bug was fixed. Has anybody been successful in running FreeNX under CentOS without this problem and knows how to fix it? Frank

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  • Starting airplay from command line, to send output of 'Say' Mac OS X command to airplay

    - by Fabien
    Ok, Sunday question :) Trying to make a little joke... 1) if you open a terminal, and type "say -a ?", Mac OS X will give you the list of devices it can send spoken words to. On mine, it says: 39 AirPlay 47 Built-in Output 2) I have a Denon airplay-ready received in my living room and I'm trying to send spoken words to my wife downstairs... I can send music without any problem using iTunes so, from an infrastructure standpoint, I'm all set. 3) I want my computer to say (out of the blue) "Honey, why don't you bring me a cup of coffee". I can make it say that locally on my internal laptop speakers, but I can't seem to send that to device 39 successfully. I am suspecting that there are a few other things that need to be setup before it works, i.e. setting up airplay output to "denon", maybe opening a channel and reserving it. I don't know. Has anyone played with this? Is there a way to setup airplay from the command line? That would be awesome :)

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  • CPU I/O communication

    - by b-gen-jack-o-neill
    Hi, I know there is this question already discussed, but I still don´t understand something, so please just help me clarify it. What I understand there is 2 way to do I/O aka communicate from CPU with other HW. One is to use in and out instructions, and second is the memory mapped. But what I don´t actually understand is, is IN and OUT instructions are used, you define source port. But what is this port? I mean, is it different set of pins on CPU or what? And, to what is that port connected? And for the memory mapped, I miss just a tiny detail. Wheather memory mapped I/O must be first set by IN and OUT instructions, or does the device actually somehow itself connects to the RAM and reads it? Thanks.

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  • Ways to have audio output without wires

    - by viraptor
    I'm trying to find a way of using my home speakers/amp without actually having to connect them. There are two laptops that use them normally (so I don't like changing the connection all the time) and I'd rather move the speakers to a place that's away from the couch. I'm not sure how to do this though... The options I can think of are: some kind of wireless jack-jack connection finally getting a media server Unfortunately I can't find any good product for the first solution. I've seen some headphones which have the receiver integrated and a separate transmitted, so in general the idea is already out there, just not the way I need ;) I've seen also http://www.miccus.com/products/blubridge-mini-jack, but I'd have to have a compatible receiver which I can't find on its own (maybe there's some application that the media server could use?). As far as media server goes... many of the plug servers look really interesting, but I'm not sure how to create an audio output and how to redirect the input really. None of the plug servers I've seen so far advertises the option of audio output jack port. I think this part could be fixed by getting one with an usb port and a separate cheap usb soundcard. I hope that input can be sorted out in some rather simple way. I've got Linux running on both laptops so I hope that would be possible to configure jack/pulse/whatever to use the remote endpoint, or even write a simple local-/dev/dsp:network:media-server-/dev/dsp forwarder. So the main question is... are there better ways? Are there any out of the box solutions? Or maybe this was already done by someone and described somewhere?

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  • Apache mod_proxy parameters

    - by mike
    Hi! I have a machine running Apache with mod_proxy that I'm using to proxy a local Tomcat server running on another port. The problem is that Tomcat does not support wildcard sub-domains(whole reason for using apache/mod_proxy) and our app uses the subdomain to figure out what account the data should come from. So with that said, is there a way to pass the subdomain as a url parameter via mod_proxy? For example, I have this: ProxyPass / http://example.com:8080/ In a virtual host block and I can access the site from any subdomain. Would is be possible to do something like: ProxyPass / http://example.com:8080/?subdomain=the_sub_domain_requested Thanks for any and all help... Mike

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  • Downloading multiple files with wget and handling parameters

    - by coure2011
    How can I download multiple files using wget? I also want to rename the files. Here are the commands I'm running one by one (copy/paste on terminal): wget -c --load-cookies cookies.txt http://www.filesonic.com/file/812720774/PS11.rar -O part11.rar wget -c --load-cookies cookies.txt http://www.filesonic.com/file/812721094/PS12.rar -O part12.rar wget -c --load-cookies cookies.txt http://www.filesonic.com/file/812720804/PS13.rar -O part13.rar wget -c --load-cookies cookies.txt http://www.filesonic.com/file/812720854/PS14.rar -O part14.rar ........ and so on.. What can I do to download all these files one by one?

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  • Imagemagick convert creates monochrome output only

    - by rumtscho
    I have a book scan as a pdf. When I open it with Adobe Reader, it looks like grayscale. When I open it with IrfanView, it looks like grayscale, and the Information option tells me that the image is actually 24 bit (I don't know if this is the real bit depth of the image embedded in the pdf or if IrfanView assigns the maximal depth when opening a pdf as image). I want to OCR the scan with OmniPage SE. It doesn't read PDF, so I decided to use ImageMagick to convert the file to PNG first. But no matter what I try, the output is always monochrome and practically unreadable. I tried different conversion lines, with different depth, density and resize values, but it didn't help. What you see was made with the options convert testfile.pdf -density 600x600 -depth 8 PNG:testfile.png. Any idea what causes the problem? Edit: To make it clear, the output looks like this for any value of -density, -depth and -resize I have tried. It also looks like that when I use no options at all, as in convert testfile.pdf PNG:testfile.png.

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  • DVI output only working on Windows, not during booting or on Linux

    - by Mononofu
    So yesterday I booted my laptop up and the external monitor I have it connected to just stayed black. At first, I thought the problem would go away when Ubuntu was loaded, but it didn't. I tried to reboot a few times, to no avail. Then I decided to give Windows 7 a try, and suddenly (at the login-screen), my external monitor turned on and worked like normal. I have connected the monitor via DVI, and this only seems to work with Windows now. I don't even get a signal in my BIOS! Mind you, everything was working fine before that, and I didn't change a single thing. I then tried to connect the monitor via VGA (from my DVI jack, which can output VGA using an adaptor), and it worked again. However, 1920x1200 using VGA looks like crap - black print on white background is basically illegible. Do you have any ideas how to fix this peculiar problem? I only use windows for gaming, so it's no real help that it still works normally. Please also excuse any spelling mistakes, I am practically typing this blindly. Edit: I only have one graphics card in my laptop, and I can't select anything related to that in my BIOS. In fact, I can pretty much do almost nothing there. My laptop is a Nexoc Osiris E703, graphics gard is a GeForce Go 7900 GTX. As I mentioned before, DVI output during booting and on Ubuntu was working fine for years before yesterday!

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  • How to pass parameters to a function?

    - by sbi
    I need to process an SVN working copy in a PS script, but I have trouble passing arguments to functions. Here's what I have: function foo($arg1, $arg2) { echo $arg1 echo $arg2.FullName } echo "0: $($args[0])" echo "1: $($args[1])" $items = get-childitem $args[1] $items | foreach-object -process {foo $args[0] $_} I want to pass $arg[0] as $arg1 to foo, and $arg[1] as $arg2. However, it doesn't work, for some reason $arg1 is always empty: PS C:\Users\sbi> .\test.ps1 blah .\Dropbox 0: blah 1: .\Dropbox C:\Users\sbi\Dropbox\Photos C:\Users\sbi\Dropbox\Public C:\Users\sbi\Dropbox\sbi PS C:\Users\sbi> Note: The "blah"parameter isn't passed as $arg1. I am absolutely sure this is something hilariously simple (I only just started with doing PS and still feel very clumsy), but I have banged my head against this for more than an hour now, and I can't find anything.

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  • DVI output _only_ working on Windows, not during booting or on Linux

    - by Mononofu
    So yesterday I booted my laptop up and the external monitor I have it connected to just stayed black. At first, I thought the problem would go away when Ubuntu was loaded, but it didn't. I tried to reboot a few times, to no avail. Then I decided to give Windows 7 a try, and suddenly (at the login-screen), my external monitor turned on and worked like normal. I have connected the monitor via DVI, and this only seems to work with Windows now. I don't even get a signal in my BIOS! Mind you, everything was working fine before that, and I didn't change a single thing. I then tried to connect the monitor via VGA (from my DVI jack, which can output VGA using an adaptor), and it worked again. However, 1920x1200 using VGA looks like crap - black print on white background is basically illegible. Do you have any ideas how to fix this peculiar problem? I only use windows for gaming, so it's no real help that it still works normally. Please also excuse any spelling mistakes, I am practically typing this blindly. Edit: I only have one graphics card in my laptop, and I can't select anything related to that in my BIOS. In fact, I can pretty much do almost nothing there. My laptop is a Nexoc Osiris E703, graphics gard is a GeForce Go 7900 GTX. As I mentioned before, DVI output during booting and on Ubuntu was working fine for years before yesterday!

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  • SQL Server 2008 R2 Writing To Text File

    - by zzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
    I used to write to text files from SQL Server using the code listed below: DECLARE @FS INT --File System Object DECLARE @OLEResult INT --Result message/code DECLARE @FileID INT --Pointer to file --Create file system object (OLE Object) EXECUTE @OLEResult = sp_OACreate 'Scripting.FileSystemObject', @FS OUT IF @OLEResult <> 0 PRINT 'Scripting.FileSystemObject.Failed' -----OPEN FILE----- EXECUTE @OLEResult = sp_OAMethod @FS, 'OpenTextFile', @FileID OUT, @FileName, 8, 1 IF @OLEResult <> 0 PRINT 'OpenTextFile.Failed' It appears this is no longer supported in sql server 2008 r2. How should I export to text files in sql server 2008 r2? Link claiming this is no longer supported: http://social.msdn.microsoft.com/Forums/en/transactsql/thread/f8512bec-915c-44a2-ba9d-e679f98ba313

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