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• How to perform a nested mount when using chroot?

  - by user55542

  Note that this question is prompted by the circumstances detailed by me (as Xl1NntniNH7F) in http://www.linuxquestions.org/questions/linux-desktop-74/boot-failure-upon-updating-e2fsprogs-in-ubuntu-10-10-a-947328/. Thus if you could address the underlying cause of the boot failure, I would very much appreciate it. I'm trying to replicate the environment in my ubuntu installation (where the home folder is on a separate partition) in order to run make uninstall. I'm using a live cd. How to mount a dir in one partition (sda2, mounted in ubuntu as the home folder) into a directory on another mounted partition (sda3)? I did chroot /mnt/sda2 but I don't know how to mount sda3 to /home, and my various attempts didn't work. As I am unfamiliar with chroot, my approach could be wrong, so it would be great if you could suggest what I should do, given my circumstances.

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• Windows 7 doesn't recognize DVD drive

  - by adrianboimvaser

  I reinstalled Windows 7 (x64) because DVD drive stoped being recognized. At first it worked, I even got to burn a dvd. Some time later it misteriously dissapeared again. This question has been asked and answered many times on the Internet, but no proposed solution works for me. Please help! Any clues are gratefuly accepted! EDIT: I booted a live CD and succesfuly tried to burn a DVD. When I rebooted back to windows 7 the DVD drive was there. I burnt another DVD and it also works... I don't know how much it's gonna last... The drive is a TSSTcorp CDDVDW TS-L632H. FW Revision: HS02. It's parallel ATA.

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• Run a specific command from a directory

  - by Cameron Kilgore

  I have a bash script where I need to run an init utility within a directory with a configuration file defined. I don't think it's possible to explicitly tell the utility to run the file as an argument, so what I need to do is go to the directory with the config file, and then run the command. I have some logic in place, but its not working -- the utility never runs. Is there any way I can tell the script to go to this directory, and then run the script? cd /var/www/testing-dev.example.co eval "standardprofile"

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• Shortest distance between points on a toroidally wrapped (x- and y- wrapping) map?

  - by mstksg

  I have a toroidal-ish Euclidean-ish map. That is the surface is a flat, Euclidean rectangle, but when a point moves to the right boundary, it will appear at the left boundary (at the same y value), given by x_new = x_old % width Basically, points are plotted based on: (x_new, y_new) = ( x_old % width, y_old % height) Think Pac Man -- walking off one edge of the screen will make you appear on the opposite edge. What's the best way to calculate the shortest distance between two points? The typical implementation suggests a large distance for points on opposite corners of the map, when in reality, the real wrapped distance is very close. The best way I can think of is calculating Classical Delta X and Wrapped Delta X, and Classical Delta Y and Wrapped Delta Y, and using the lower of each pair in the Sqrt(x^2+y^2) distance formula. But that would involve many checks, calculations, operations -- some that I feel might be unnecessary. Is there a better way?

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• hp g7-1070us does not post to windows

  - by lexlyn4

  Ok basically my laptop screen is broken and only a small portion of the screen is viewable. When I boot my laptop it gets to a screen where it shows startup/hp.com. That's all I can see because of the screens state. I can enter bios bit again cannot see much. My laptop is an hp g7-1070us and I was thinking of hooking it up to a monitor then going into the bios but that's not possible unless the computer posts to windows. So I don't care about the data all I want is to boot to windows. I'm wondering if I insert a copy of windows,7 and do,a,clean install will,it work. I don't have the cd yet but working on it. I need help please

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• Get CruiseControl to talk to github with the correct public key.

  - by Jezmond

  Hi All, Has anybody installed git and ControlControl and got CruiseControl to pull from GitHub on a window 2003 server. I keep getting public key errors (access denied) - Which is good i suppose as that confirms git is talking to github. However what is not good is that I dont not know where to install the rsa keys so they will be picked up by the running process (git in the context of cc.net). Any help would save me a lot of hair! I have tried installing the keys into; c:\Program Files\Git.ssh Whereby running git bash and cd ~ take me to: c:\Program Files\Git Thanks in advance

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• Is it possible to have environment variables in the path of the working directory : PS1?

  - by mthpvg

  I am on Lubuntu and I am using bash. My PS1 (in .bashrc) is : PS1="\w> " I like it because I need to paste the working directory all the time. The problem is that the path is always very long and since I use terminator I only have half of my screen's width available to display it... it is ugly and annoying. My command prompt looks like that : /this/is/a/very/long/path/that/i/want/to/make/shorter > I'd like to set in my environment variables : $tiavl=/this/is/a/very/long And then I'll get : $tiavl/path/that/i/want/to/make/shorter > The goal is to have something shorter in the command prompt but I still want to be able to copy paste it and do : cd $tiavl/path/that/i/want/to/make/shorter It is a bit like with $HOME : ~/path/that/i/want/to/make/shorter > I know where I am and I can copy paste the ~. Thanks.

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• “BAD” partition showing up in Partition Manager

  - by Quintin Par

  I tried to partition my primary hard disk (NTFS partitions) with qtparted and got stuck in the process. Consequently I had to kill the process and exit my knoppix live CD boot up. Even though I was expecting XP to get corrupted, it booted fine and showed up all the drives accessible. But when I opened this with partition manager 8, it shows up as “BAD”. I ran chkdsk /f without any success. My objective with qparted and partition magic was to resize my existing partitions and add some space to c: How do I fix this problem and resize my partitions? Edit: Here's how my primary drive as per Windows is:

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• missing windows/system32/config/system

  - by Faruq Sandi

  i know it is common problem, but not its so strange. problem: common missing windows/system32/config/system what i do next: put hdd to another pc and boot from it, it is succeeded but without warning window after startup that says like "windows has recovered from serious problem". and than i put back hdd to previous pc. tadaaa!!!! missing windows/system32/config/system is happening again! now i am trying repair this problem with recovery console from CD. i hope it will successful. someone can explain this? what should i do?

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• Use `dd` linux program to save / recover a disk's MBR

  - by Graduate

  I have an Ubuntu OS installed on my laptop. I want to install Windows 7 as well to another disk partition (I will do it by recovering it from a special partition on my laptop). After installing Windows, I want to recover my hard drive MBR to be able to load Ubuntu. I have a plan to use linux dd program: 1) (Before installing, perform this command in Linux) dd if=/dev/sda of=/home/user/mbr_backup bs=512 count=1 2) (after installing, load Ubuntu Live CD and launch this) dd if=/home/user/mbr_backup of=/dev/sda bs=512 count=1 3) Load Ubuntu on PC and re-configure the GRUB2 to be able start Windows I need your advice, I want to be sure I won't damage the disk (it's partition table).

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• I am looking for a svn helper program

  - by uzay95

  I didn't remember the name of this program. But i can remember how it works. Program is working on tray. When we double click on it it is showing its main window. :) I could add some criterias to make automatic commit(and maybe update). For ex: if a file changes or if files to be deleted, you can commit. The best part of this program is: "it is FREE" I don't remember exactly but i think it has M name in its name (but i don't remember). I think this program written by an Italian man. And its web site was very simple (and i think its fonts were green)

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• When I try to install Windows 7 on dell inspiron 1420 which came with Ubuntu freezes at the beginnin

  - by draganstankovic

  I have searched many forums and tried a lot of suggested solutions but nothing works. I am sure that installation disk is ok cause it worked before (I was able to install Windows7 on my other notebook - MSI). What happens is: I boot with installation CD, it says 'Windows is loading files...' Then it says Starting Windows (mouse laser works at that moment). Then I get the screen with window which has a title "Install Windows" with options to choose language, keyboard, etc. and asking me to click next. But, the problem is that at that moment mouse and keyboard don't work at all. Mouse's laser is turned off, and if I press CAPS LOCK on keyboard it doesn't turn the LED on. Do you have any suggestions? Thanks!

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• Why I'm unable to use up/down arrows in my BIOS?

  - by nexus

  My BIOS is loading and when I wanted to change anything, the up/down arrows aren't working. What might be the problem? I want to change boot options, but I'm unable to select the boot from CD option. My BIOS version is f2.3. Do I need to upgrade it? I need my system for 2 more months continuously and I'm afraid if there might be some problem upgrading. But anyway, what might be the cause for this behavior? For you info I have the pavilion dv6 series laptop, BIOS version: f.23 processer: Intel(R) core(TM) i3 CPU M 370 @ 2.40ghz 2.40GHZ 2.40 GHZ

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• How can I push a git repository to a folder over SSH?

  - by Rich

  I have a folder called my-project inside which I've done git init, git commit -a, etc. Now I want to push it to an empty folder at /mnt/foo/bar on a remote server. How can I do this? I did try, based on what I'd read: cd my-project git remote add origin ssh://user@host/mnt/foo/bar/my-project.git git push origin master which didn't seem right (I'd assume source would come before destination) and it failed: fatal: '/mnt/boxee/git/midwinter-physiotherapy.git' does not appear to be a git repository fatal: The remote end hung up unexpectedly I'd like this to work such that I don't have to access the remote host and manually init a git repository every time ... do I have to do that? Am I going down the right route at all? Thanks.

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• perl Date::Manip array problem

  - by medalto

  im using Date::Manip http://search.cpan.org/~sbeck/Date-Manip-6.11/lib/Date/Manip.pod for a variety of things and want to create an array of days of the month i think I need @date = &ParseRecur("2010:4:0:0:0:0:0"); but it doesnt do it . ive read & reread the man page but cant get the syntax. @date = &ParseRecur("2010:4:0:1:0:0:0"); @date = &ParseRecur("2010:4:0:1*:0:0:0"); dont work either !

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• Good free way to clone a hard drive or a partition and send the image over the network (through FTP, Windows file sharing, "anything")?

  - by Deleted

  What I ideally would like is a free software solution which can: Boot from a CD/DVD/USB-stick and Clone a complete hard drive or a partition and Send the resulting image file over the network through Windows file sharing (SMB, I could use SAMBA on my server to receive the image) or through FTP or through SFTP or through SCP It should work with Linux and Windows file-systems (where specific file system support is necessary) Is there anything good out there like this? I know Wikipedia lists a lot of cloning software. But I'm looking for a personal recommendation which you have used yourself, as I find it more credible (I'll see from the upvotes if the answer is liked by a lot of visitors).

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• How can I launch a local application remotely?

  - by yungsters

  I use TextMate on Mac OS X to develop. The files I need to edit are on a Linux machine, and I have the Linux filesystem mounted on my Mac OS X. Opening the files and saving them in TextMate is not a problem. What I want to do (from my Mac OS X) is be able to... SSH <linux> cd <folder> mate <filename> I want that to open up the file in TextMate on my Mac OS X (thus, shifting focus from my Terminal.app to TextMate.app). How can I achieve this effect?

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• How to write more than one line in a launcher

  - by seraex

  How can I run three commands in a launcher? My commands are cd /home/seraex/MyDoc rm MyDoc.tgz tar cfz MyDoc.tgz * which will go to my documents folder and delete old backup and make a new backup. At the moment I make a text file and then make a launcher and point it to the file, but I want to delete the file and make the launcher run the commands directly. I'm using ubuntu 10.10 ' ubuntu site says 'Unfortunately launchers do not have access to the Bash environment so you cannot just include the multi commands' when i ggole chaining in launchers. thanks, admin may delete the question '

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• Grub File Stolen ( WINDOWS and OpenSus )

  - by NESIRSUSEJ

  I have a problem with my computer. I installed OpenSus on my external, and I still have Windows on my HDD. OpenSus took the Grub file and placed it on my external, so now I have to open OpenSus to open Windows. I never got a Windows CD when I bought my computer ( I live in South Africa :) ).... I want to install Ubuntu 12.04 on my external, but then I will have to format my external in which case I will lose the Grub file causing me to lose Windows, which I can't afford to do... yet. Does anyone have an idea what I can do?

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• How can I retrieve "remembered"(stored) wi-fi password from a win. 7 device?

  - by user180880

  I have access to PC, and I am a standard user. Everything(incl. "show charecters" tickbox at wiriless menu) requires admin access. Now, that said machine is actually like a big tv with touch. Type-stuff is handled by virtual keyboard of windows. I can reach to c:\ProgramData\Microsoft\Wlansvc\Profiles\Interfaces and can see-open files there, which is I assume where passwords stored are. Now the problem is that these passwords is encypted. I'm ok with if there is a way with changing/resetting admin password as well. Considering this device has nothing but massive amounts of usb(yep, not even cd-dvd // rw) the only way is from inside or with usb without admin rights.

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• Understanding behaviour of read() and write()

  - by neo730

  hi i am a student and just start learning low level c programming.i tried to understand read() and write() methods with this program. #include <unistd.h> #include <stdlib.h> main() { char *st; st=calloc(sizeof(char),2);//allocate memory for 2 char read(0,st,2); write(1,st,2); } i was expecting that it would give segmentation fault when i would try to input more than 2 input characters.but when i execute program and enter " asdf " after giving " as " as output it executes "df" command. i want to know why it doesn't give segmentation fault when we assign more than 2 char to a string of size 2.and why is it executing rest(after 2 char)of input as command instead of giving it as output only? also reading man page of read() i found read() should give EFAULT error,but it doesn't. I am using linux.

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• How to exchange the HDD of a MacBook Pro?

  - by Another Registered User

  I've bought an Solid State Drive (SSD) for my MacBook Pro, and now I need to exchange it somehow. Would this strategy work? 1) Create an backup with Time Machine (Snow Leopard) 2) Then replace the old HDD 3) Insert the new HDD 4) Install Snow Leopard (same version as previously used) 5) Open up Time Machine, and recover from the last backup I'm not sure about how to do the last part. Is that hard? What are the neccessary steps? Or is there a better way? Maybe I don't need to re-install Snow Leopard completely? Maybe the Install CD already offers an option to recover from Backup?

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• I want to construct web page for my department, I want your advice

  - by gcc

  I want to help freshmen , so I will construct web page for them . In that webpage , I will have some topic ; While installing ubuntu what you should consider ? ( ex : are there any driver-confliction ? ) [ So freshman do not know how to install ubuntu, or they think everything is completed when ubuntu-cd finish its job ] problem-solving style best book to learn ( x ) language general advice for departman how should I study programming languages some web page to introduce ubuntu, deeply some web page to introduce Makefile Assume; If you are in my position, Would you construct web page like that If you want to construct, which topic will you add ? which topic will you remove? NOTE: If you do not like my language you are free to give me advice to fix my fault. EDIT: I am student . How they expect I will send a great question.If they havenot fix me , How they expect I will improve myself, or help the other. I just want help freshman.Is it a big mistake ?

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• Productive Toolset for C# Developer

  - by Marko Apfel

  Programming Visual Studio ReSharper Agent Johnson Agent Smith StyleCop for ReSharper Keymaps SettingsManager Git Source Control Provider Gist NuGet Package Manager NDepend Productivity Power Tools PowerCommands for Visual Studio PostSharp Indent Guides Typemock Isolator VSCommands Ressource Refactor Clone Detective GhostDoc CR_Documentor AnkSVN Expression Blend SharpDevelop Notepad++, PS Pad StyleCop, FxCop, .. .NET Reflector, ILSpy, dotPeek, Just Decompile Git Extensions inkl. MSysGit, MinGW Github for Windows SmartGit PoSH-Git Console Enhancement Project LINQPad Mercurial RapidSVN SQL Management Studio Adventure Works Sample DB AdventureWorksLT Toad for SQL Server yEd Graph Editor TeX, LateX MiKTeX, TeXworks Pandoc Jenkins, TeamCity KompoZer XML Notepad Kaxaml KDiff3, WinMerge, Perforce Merge Handle DbgView FusLogVw FTP Commander HTML Help Workshop, Sandcastle, SHFB WiX Enterprise Architect InsightProfiler Putty Cygwin DXCore, DXCore Plugins FreeMind ProcessExplorer, ProcessMonitor Social Networking, Community Windows Live Writer Disgsby Skype TweetDeck FeedReader Sytem and others Microsoft Office (notably OneNote!!!) Adobe Reader PDF Creator SRWare Iron (Chrome) AddThis bit-ly del.icio.us InstaPaper Leo Dictionary Google Bookmarks Proxy Switchy! StumbleUpon K-Meleon FreeCommander, FAR 7-Zip Keyboard Jedi Launchy TrueCrypt Dropbox Ditto Greenshot Rainlendar2 Everything Daemon Tools inSSIDer VirtualBox Stardock Fences Media Player Classic VLC Media Player Winamp WinAmp Cue Player LAME Encoder CamStudio Youtube to MP3 Converter VirtualDub Image Resizer Powertoy Clone 2.0 Paint.NET Picasa Windy JediConcentrate, Ghoster TeamViewer Timerle TreeSizeFree WinDirStat Windows Sizer, WinResizer ZoomIt Sometimes nice to have ArcGIS TortoiseSVN, TortoiseCVS XnView GitJungle CowSpy Grindstone Free Download Manager CDBurnerXP Free Audio CD Burner SmartAssembly intellibook GMX SMS Manager BlackBerry Desktop Cisco Any Connect eRoom Foxit Reader Google Earth ThinkVantage GPS Gridy Bluefish The GodFather Tor Browser, Charon YouTube Downloader NCover Network Stumbler Remote Debugger WScite XML Pad DBVisualizer Microsoft Network Monitor, Fiddler2 Eclipse IDE Oracle Client, Oracle SQL Developer Bookmarks, Links http://pastebin.de/, http://pastebin.com/ http://followup.cc  http://trello.com http://tumblr.com https://bitly.com/, http://is.gd http://www.famkruithof.net/uuid/uuidgen, http://www.guidgenerator.com/ https://github.com/, https://bitbucket.org/ http://dict.leo.org/, http://translate.google.com/ http://prezi.com/ http://geekswithblogs.net/Default.aspx, http://codebetter.com/ http://duckduckgo.com/bang.html   http://de.schreibtrainer.com/index.php?site=3&menuId=3 http://www.mr-wetter.de/ this is an update to http://geekswithblogs.net/mapfel/archive/2010/07/12/140877.aspx

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• How can I install a 32bit python on 64 bit Ubuntu

  - by moose

  I am using Ubuntu 10.10 (Linux pc07 2.6.35-27-generic #48-Ubuntu SMP Tue Feb 22 20:25:46 UTC 2011 x86_64 GNU/Linux) and the default python package (Python 2.6.6). I would like to install python-psyco to improve the performance of one of my scripts, but only python-psyco-doc is available for 64 bit. I tried a virtual machine, but the the performance boost is much less on the virtual machine than on a "real" installed 32-bit Ubuntu. So my question is: How can I install a 32Bit Python with psyco on my 64Bit Ubuntu machine? edit: I've found this article and made this: Download "Python 2.7.1 bzipped source tarball" from http://python.org/download/ Go in the directory where you decompressed "Python 2.7.1" $ OPT=-m32 LDFLAGS=-m32 ./configure --prefix=/opt/pym32 $ make But I got this error: gcc -pthread -m32 -Xlinker -export-dynamic -o python \ Modules/python.o \ libpython2.7.a -lpthread -ldl -lutil -lm libpython2.7.a(posixmodule.o): In function `posix_tmpnam': /home/moose/Downloads/Python-2.7.1/./Modules/posixmodule.c:7346: warning: the use of `tmpnam_r' is dangerous, better use `mkstemp' libpython2.7.a(posixmodule.o): In function `posix_tempnam': /home/moose/Downloads/Python-2.7.1/./Modules/posixmodule.c:7301: warning: the use of `tempnam' is dangerous, better use `mkstemp' Segmentation fault make: *** [sharedmods] Fehler 139 edit2: Now I've found http://indefinitestudies.org/2010/02/08/how-to-build-32-bit-python-on-ubuntu-9-10-x86_64/ and it seems like this worked: $ cd Python-2.7.1 $ CC="gcc -m32" LDFLAGS="-L/lib32 -L/usr/lib32 \ -Lpwd/lib32 -Wl,-rpath,/lib32 -Wl,-rpath,/usr/lib32" \ ./configure --prefix=/opt/pym32 $ make $ sudo make install But installing psyco didn't work: Download the lastest snapshot: http://psyco.sourceforge.net/download.html Extract it and go into the folder $ python setup.py install This error appeared: PROCESSOR = 'ivm' running install running build running build_py running build_ext building 'psyco._psyco' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -DALL_STATIC=1 -Ic/ivm -I/usr/include/python2.6 -c c/psyco.c -o build/temp.linux-x86_64-2.6/c/psyco.o In file included from c/psyco.c:1: c/psyco.h:9: fatal error: Python.h: Datei oder Verzeichnis nicht gefunden compilation terminated. error: command 'gcc' failed with exit status 1

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