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• 12.04 x64 Server Login Failure

  - by ThoughtCoder

  After some serious GRUB issues after routine kernel updates, forcing a grub-reinstall via chroot and some single-user mode maintenance, I now cannot login to my server (except via single-user mode) When attempting to SSH to the server my connection is reset immediately after entering username - no password prompt is presented. I've plugged in my monitor and keyboard to the headless server and when trying to login I receive: login: "PAM Failure, aborting: Critical error - immediate abort" immediately after entering my username - again, no password prompt is displayed. I am able to gain access via kernel recovery mode and login as root through single-user mode with networking. I've attempted a dpkg reconfigure believing I may have had some incomplete/borked packages, but to no avail. Looking through /etc/pam.d/login doesn't seem to lead me in any obvious directions and I'm afraid I'm out of ideas. Googling doesn't help me much, one guy reinstalled (really don't want to do this) and the rest I could find were old Gentoo related bugs. Any tips?

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• Graphics corrupt after upgrade from 11.10 to 12.04

  - by RiaanZA

  I'm stuck at the moment with an ubuntu that boots into an unusable white screen after upgrading from 11.10 to 12.04. I've tried booting into safe X mode but it just throws me back to the safe menu every time. Restore previous graphics driver, use default graphics configuration and set up new graphics configuration all don't work either. I've tried various methods of resetting the graphics from the command line, but none are working due to unmet dependencies. These cannot be fixed by doing the normal "apt-get -f install" because its saying there is a dpkg error in var/lib/dpkg/status (blank line relating to skype-wrapper). I haven't been able to find any other way to fix the dependencies yet. Can someone please give me some advice on what to do, I really don't want to go the re install route.

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• usb stop working

  - by miguel

  I'm using Xubuntu 12.04 on a 64 bit Intel core duo laptop and the 3 USB 3.0 ports stopped working if I do not use the mouse. I updated the kernel to 3.9 but the bug persists. I googled too much and the few reponses I got cannot fixed this. The only solution is shuting down, unplugging and then plugging them back, then all works fine. But after half an hour or two days the bug reappears. How can I solve this? Thanks and excuse my poor english.

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• How to balance programming projects between feasibility and usefulness

  - by tyjkenn

  I've become fairly competent as a programmer, but I would not say I am a master. I work independently, most as a hobby, although I have done some freelance PHP work. I tend to find myself dabbling in a lot of things: Java Android SDK, Arduino, game scripting, Lua, etc. I've reached the point where I want to start a real software project, but cannot think of a small enough project that allows me enough practice, while still being able to publish a decent piece of software in a reasonable amount of time, and build up a portfolio. More specifically, I was looking at Ubuntu development, in Python, using the Quickly toolset, which includes the PyGTK libraries. So the question is, what is the best way to come up with a small project that is still useful, as a starting point to a software development career?

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• Windows 7 not booting up and stuck at startup repair

  - by mikimr

  I've been having issues with Windows 7 Home Premium on a Lenovo laptop. At first, it would not start up normally at all. I started it in Safe Mode, where I disabled all non-MS services and tried again to no avail. It then goes into Startup repair where it failed several times. I tried copying the original registry settings, still the same. I resorted to booting with an Ubuntu DVD, where I ran the boot-repair, where it is supposed to correct the Windows boot. No luck. I used Win7 DVD to start up from there, where I had the option to install or repair. I chose the repair, got into command prompt, ran chkdsk /i /r, where it found 3 unreadable segments, went through the 2nd step without issues, and the 3rd step completed with some errors (can't recall the exact errors). When I restarted the machine, it went to straight to the Stratup Repair, indicating "Attempting repairs... Repairing dis errors. This might take over an hour to complete." It's been like this for nearly 15 hours. When I try to cancel or close the Startup Repair window, I get a message "The current repair operation cannot be cancelled." Should I let it run or force shut the machine? If force shut, how can I resolve this problem? Thanks.

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• How to tell Linux to explicitly swap out main memory of suspended process?

  - by Vi

  I run a memory-hungry process (mkcromfs) which consumes more memory than I have physical memory on my latop, so it is paging and swappin and thrashing all the time and loadavg is about 2 (compcache is already in use with usual swap partition as well), but slowly moving forward (Although I afraid it will finally try to allocate 2GB and crash draining 2 days of thrashing). When I want to use the laptop for something else, I stop the process, start X server, firefox and other programs. The problem is that when I start Firefox the loadavg jumps to 10 and the system becomes almost unresponsive at all (long time to turn on/off caps lock, slow mouse cursor position updates, slow switching from X server to Linux console, slow login). The stopped mkcromfs still holds a lot of memory (464.8 MiB and slowly falling) and moves it to swap only when more memory is needed for some other program, which results in a great slowdown. How to tell the Linux to swap out this process entirely (e.g. I'm not intending to resume it in short term), possibly waking from swap other data? Also it will be useful to be able to specify the exact swap device to swap the given process out.

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• Not assigning Bugs to a specific user

  - by user2977817

  My question: Is there a benefit to NOT assigning a Bug to a particular developer? Leaving it to the team as-a-whole? Our department has decided to be more Agile by not assigning Bugs/Defects to individuals. Using Team Foundation Server 2012, we'll place all Bugs in a development team's "Area" but leave the "Assigned To" field blank. The idea is that the team will create a Task work item which will be assigned to an individual and the Task will link to the Bug. The Team as a whole will therefore take responsibility for the Bug, not an individual, aligning to Scrum - apparently. I see the down side. The reporting tools built into TFS become less useful when you cannot sort by assigned vs unassigned, let alone sorting by which user Bugs are assigned. Is there a benefit I'm not seeing? Besides encouraging teamwork by putting the responsibility on the team-as-a-whole instead of an individual?

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• My Herokuapp is inaccessible from custom domain name

  - by picardo

  I have a Heroku app that is located at myapp.herokuapp.com. I have mapped a domain name to this app, using the A properties. I followed the instructions on Heroku's website to the letter, and it worked for a few days. Now when I try to access the site from the custom domain, it's timing out! On Chrome, I am getting "Oops! Google Chrome could not find that page!" message. I tried pinging the name as well, but I got this error: ping: cannot resolve yourhostname.org: Unknown host The app itself is working and I don't see any error messages from Heroku. Or from new Relic. What's going on here? Also tried running host and this was the error message: ;; connection timed out; no servers could be reached

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• Black screen with blinking cursor after dual boot install 14.04

  - by chillstream

  I have just installed Ubuntu 14.04 on my toshiba laptop along side Windows 7. When the menu comes up to choose which OS to boot into, I can easily boot into Windows 7. I cannot successfully boot into Ubuntu. All I get is a blinking cursor on a black/purple screen. I attempted the nomodeset trick, which was a bit more successful. I got a screen with a lot of code, but then it stopped with a blinking cursor at the bottom and wouldn't load anymore. As a last resort, would returning my laptop to factory settings get rid of linux and the partitions made to the drive? I already did this to my laptop when it was just windows, which is why I thought I might as well try to add Ubuntu. But it's a lengthy process, and if it won't get rid of the partitions and ubuntu, I won't bother. I appreciate any help ~many thanks

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• Could not write bytes: broken pipe - looking for log of removed packages

  - by user288987

  I have a dual boot system with 12.04 and windows 7. Ubuntu worked fine yesterday but this morning upon boot I get subject. Searched the forums and unsuccessful with recovery. I tried sudo gedit /var/log/apt/history.log to see the log of removed packages, but get the following... ** (gedit:976): WARNING **: Command line 'dbus-launch --autolaunch=2d7d18532e9953bc8a2b852e00000007 --binary-syntax --close-stderr' exited with non-zero exit status 1: Autolaunch error: X11 initialization failed.\n Cannot open display: Run 'gedit --help' to see a full list of available command line options. Anyone have any suggestions for a fix? Please let me know if you require any additional information. Thanks! Mark

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• Not your typical Permission Denied Question

  - by Todd

  I recently reinstalled Ubuntu 11.10 (64 Bit) on my computer. (My hard drive took a powder) Before, I could "mv" files around with the command. Now when I try I get the permission denied message. I also get the message about "man sudo" when I open my terminal. I am pretty sure I did not get that before. Can I add a user/administrator and change something in my orginal admin that I cannot change myself? I am getting really frustrated with this. I do not recall having the same problem before. I tried qksudo nautilus and it appears to run then it sits there with the cursor blinking but does not move.

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• Hulu desktop stopped working on my Dell

  - by jwdinkc

  After last weeks flash update Hulu desktop no longer works on my Dell laptop though it still works on my HP Desktop. Here's what CLI tells me on the Dell: Inspiron-1564:~$ huludesktop Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory I tried: sudo apt-get install libvdpau_nvidia.so but got E: Unable to locate package libvdpau_nvidia.so and E: Couldn't find any package by regex 'libvdpau_nvidia.so' Hulu does work through the browser and through XBMC. XBMC just doesn't seem to match the video quality of the Hulu Desktop. I don't really know why a nvidia.so is needed for my Intel graphics that comes on Dell Insiron 1564's. anyway. So, do you guys have a solution?

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• Macro vs. Static functions in Header

  - by wirrbel

  for a lot of quick tasks where one could employ a function f(x,y), in plain C, macros are used. I would like to ask specifically about these cases, that are solvable by a function call (i.e. macros used for inlining functions, not for code expansion of arbitrary code). Typically C functions are not inlined since they might be linked to from other C files. However, static C functions are only visible from within the C file they are defined in. Therefore they can be inlined by compilers. I have heard that a lot of macros should be replaced by turning them into static functions, because this produces safer code. Are there cases where this is a not good idea? Again: Not asking about Code-Production macros with ## alike constructs that cannot at all be expressed as a function.

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• Program/Wrapper (how do you call it) to automate a certain script

  - by user10324

  In this question a script is provided, that minimizes all the other windows except the active one. But the thing is, to trigger this script a (shortcut) key-combination has to be pressed. I would love it, if it would be possible to automate this behavior, i.e. no matter what I do, only the active window is not minimized. This way I cannot view more then one open window at the same tine, which is what I'm after. Is it possible to write a script, that does this ? I a question I asked a while ago (where I learned about the above script), someone said, the proper way to do this, would be through a wrapper through which every program starts. I would also be very happy with a more sloppy solution, like activating this script 100 times per second (simulating pressing the shortcut combination a 100 times per second), if it is feasible - although I was warned, that that may not be a very good idea.

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• Unable to mount Windows (NTFS) filesystem due to hibernation

  - by yotamoo

  Whenever I boot Ubuntu, I get a message that it cannot mount my windows partition, and I can choose to either wait, skip or manually mount. When I try to enter my Windows partition through Nautilus I get a message saying that this partition is hibernated and that I need to enter the file system and properly close it, something I have done with no problem so I don't know why this happens. Here's my partition table, if any more data is needed please let me know. Device Boot Start End Blocks Id System /dev/sda1 2048 20000767 9999360 83 Linux /dev/sda2 20002814 478001151 228999169 5 Extended /dev/sda3 * 478001152 622532607 72265728 7 HPFS/NTFS/exFAT /dev/sda4 622532608 625141759 1304576 82 Linux swap / Solaris /dev/sda5 20002816 478001151 228999168 83 Linux

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• Is the UX affected negatively by fully cacheable pages?

  - by ChocoDeveloper

  I want to have fully cacheable pages in my websites, but one cannot do that if they contain user-specific data, like the userbar or things in the UI that can change depending on the permissions the user has. So I was thinking whether it was possible to pull everything that is user-specific via ajax, and update the UI accordingly. But I'm worried that this might be annoying for the user, and also it might be difficult to develop. What do you think? Is there a pattern or something I can follow to deal with this?

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• Two Home and Boot partitions after installing Ubuntu 14.04 and Downgrading to Ubuntu 12.04

  - by Jatttt

  I have Ubuntu 12.04 LTS and I am experiencing some problems. I didn't have Ubuntu 12.04 on a drive to install it but I did have Ubuntu 14.04. So I installed it and downloaded Ubuntu 12.04 using Ubuntu 14. Now, I have 2 home partitions and 2 boot partitions. One home and boot is mounted at /media and the other one is /home and /boot. I cannot get rid of /media/HOME and /media/BOOT even using Gparted. How do I get remove them?

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• How to install Ubuntu using a USB stick?

  - by J. N.

  I cannot install Ubuntu 11.10 from a USB stick. It doesn't boot to Ubuntu page for installation but remains on Windows 7. I've downloaded the 11.10 version iso file and burnt it to a USB stick. After I inserted it, the USB stick is a symbol of Ubuntu installation and I clicked wubi to try to install it. But it didn't boot to Ubuntu but stayed on Win 7 after restart. It occurred error and said "windowsBackend" object has no attribut "cd_path" when I chose "Help me to boot from CD". I thought it's the problem of my computer model (acer travelmate 8481), but it can't boot on an old computer using XP as well. How can I solve this problem and install Ubuntu to replace Windows?

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• How to enable a symlink in this case

  - by Bragboy

  I cannot categorize this question under ubuntu since it has nothing to do with it. But I know people here can definitely answer this. I login to one of my deployment boxes using SSH (no ubuntu here). I am working in a tool called TeamCity which uses a folder called ".BuildServer" under home directory of the user. This folder may grow in size as the application runs but the current user is only given a limited amount of space. But the good thing this I got a folder access outside /home/deploy (deploy being the user here) folder. I now want to link this .BuildServer inside the /home/deploy directory to the other folder where I got permission for (meaning all the files should be re-routed to that directory) Hope my question was clear, please help.

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• Samba user does not have folder read permission

  - by user289455

  I have set up a special user for read only samba shares. I set him up in Samba and as a system user. I shared a couple of folders but that user cannot access them. I know samba is working because I also shared them with the main user of the system which is an admin account and it works fine. How can I allow this user to have read permissions on all the directories I want to share without changing anything for any other users of the system? For example, I don't want to give him ownership of any of the files/directories. Just ongoing recursive read access. ongoing recursive is important. If someone adds a file or directory, I still want him to automatically be able to read it.

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• Ubuntu frozen on boot screen; boot repair fails due to X11 and gtk

  - by anandsun

  I have a year-old HP Pavilion dv6 with Intel i7 processors and graphics card. I had Windows 7 but last week I dual booted Ubuntu. It was working fine until today. I did the following things: Updated Gnome and installed Gnome tweak tool Uninstalled Chromium browser Uninstalled Google Chrome Moved jdk and jre folders from ~/ to /bin using sudo Moved Adobe folder from ~/ to /bin using sudo Then I restarted. Ubuntu froze for half an hour on the purple boot screen. Something I did must have broken it. So, I hit Ctrl + Alt + F1 and managed to log in through the command line. From there, I ran sudo apt-get update and sudo apt-get upgrade. I also updated grub. I also installed boot-repair. However, I cannot run boot-repair, because I keep getting the following errors: Autolaunch error: X11 initialization failed RuntimeError: Gtk couldn't be initialized.

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• install 64 bit as dual boot with 32 bit

  - by profgeorgefhart

  I downloaded Ubuntu 12.10 - bit .iso onto a bootable USB and want to put it on to my 32 bit 12.10 system as a dual boot, using a totally separate 1 Tb disk [which already has data on it]. However, when I go to restart and hit F8 fir BIOS set-up, I can change all the settings except the boot search order. Is there some other way to force the startup to read the USB first? Is the fact that I cannot change the search order to do with the fact that the 32 bit OS was 'Installed in legacy mode' not 'EFI? How can I rectify this? (This might be related -- might I need to update my BIOS for my Intel DX38BT motherboard? I think their last upgrade was 2009.)

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• Outlook 2010 Crashing Unpredictably

  - by cbkadel

  Very often when I open up Outlook 2010 and start doing actions in it, it will hang and become non responsive. I have tried letting it finish, but it never does come back (up to 20 minutes of letting it try). I generally have to restart Outlook and try again. Usually after about an hour of doing this, Outlook somehow snaps out of it and works for the rest of the day. It's generally in the morning (though I doubt that's the key variable). Generally, the emails that cause problems are HTML/formatted, but not always. What I've done so far to troubleshoot: Install Latest Outlook Hotfix (I think Dec 14, 2010) Start Outlook in Safe Mode Neither of those steps seem to make a difference. Usually - after about 10-15 restarts of Outlook on any given day, then it starts working thereafter. My next step is to uninstall/reinstall Office 2010, but I'm hoping someone has seen this and knows what to do about it - though not sure. My configuration is like this: Microsoft Online Services (using Microsoft's Sign In App) - Connecting to Exchange I have two other Exchange accounts in this profile (new feature in 2010) connected through Outlook Anywhere. Life Meeting Conferencing Add In I've disabled the People tab/add in. I've disabled the "Send to Bluetooth" add-in. Not sure what else to do?

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• Limited user requires admin rights for plug and play printer?

  - by Kalamane

  I have a small fleet of laptops that aren't part of a domain running Windows XP Pro SP3 as limited users. They are used for printing different shipping documents. I have a script that runs when they start up that uses devcon and prntmngr to detect and install/configure the currently connected usb printers. This lets us deploy the laptops to any printing station with a USB printer and have the printer 'just work' for the end user employee. I've taken the original clone image and have added functionality to it. Since then I've discovered a bit of an issue with using HP LaserJet P1606dn printers. They have started asking for admin rights on setup. This is with and without the script running. Previously they would automatically install because I had installed WHQL plug and play drivers for them. I thought it might have to do with the HP Smart Install Utility but it happens when that is disabled. I don't have a good point to roll back to before this started happening because this was an issue on the image I took initially to start this upgrade. What could be causing this?

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• can I forward "referrer" information to other address?

  - by user5679

  I have two addresses for two servers: www.urlA.com www.urlB.com I have all my websites installed in www.urlB.com, but visitors recognize www.urlA.com primarily. I have www.urlA.com/index.php as the following <?php header('Location: http://www.urlB.com/'); ?> But, when I use this forwarding method, the tracking javascript in www.urlB.com cannot recognize where the visitors are from. I only obtain "NO REFERRING LINK" What should I do to do the following two jobs: 1. to forward urlA.com to urlB.com 2. to receive the referrer information

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