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• Win7 installation on VirtualBox

  - by Will

  I have Ubuntu 12.04 installed on my machine. I also installed Virtualbox so that I can run windows 7. I set my virtual box with 4 GB RAM and 25 GB virtual HDD and after I press Start, it doesnt boot from the windows dvd in the optical drive, but instead i get this error: Failed to open a session for the virtual machine win7. VT-x features locked or unavailable in MSR. (VERR_VMX_MSR_LOCKED_OR_DISABLED). Result Code: NS_ERROR_FAILURE (0x80004005) Component: Console Interface: IConsole {1968b7d3-e3bf-4ceb-99e0-cb7c913317bb} Do you have any idea what is it and how I could overcome this? Thank you!

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• Ubuntu 11.10 USB 3.0 HDD

  - by Chazm

  I have a problem with my external HDD (WD My Book Essential 1TB) working on USB 3.0 port. I'm using dual boot setup with Windows 7 and Ubuntu 11.10, both 64 bit. While I'm running Windows and rebooting back to Windows everything works well. When I'm switchin to ubuntu everything works great as well. But after 1st reboot from ubuntu neither windows nor ubuntu mount the external drive. I have to reboot the device manually. I suspect that the problem is with unmounting the device on shutdown on ubuntu. The case concern only usb 3.0. When i plug the same device into usb 2 port the problem doesn't persist. Does any1 hit the same problem or have a clue what might goin wrong?

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• Ubuntu VM cannot start after Kernel upgrade

  - by AAz

  Several Ubuntu 10.04 VMs were restarted after few months and began getting "Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)" message. Restoring those VMs from backup (to the "paused" state) allows to boot normally. However restarting the VM again results in the mentioned error message. I suspect it's the updated kernel version (2.6.32-37-server, 2.6.32-38-server) that misbehave - another Ubuntu VM (that's used as template for those failing VMs) still has 2.6.32-24-server and reboots fine. We're using HyperV (2008R2) as the server host. Nothing were changed in it's configuration. Has anyone faced this issue, please advise the solution. Many Thanks in advance!

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• Problems booting Ubuntu 10.10 with Nvdia GeForce 6600gt

  - by SlyrNemesis

  I am quite new to Ubuntu and I already stumbled upon a problem. I run Ubuntu 10.10 Maverick Meerkat now and Install went fine, when trying to boot the screen popped black and I faced this message "gpu lockup - switching to software fbcon." When setting the display to onboard VGA through BIOS Ubuntu has no problem at all, but when I switch back to my AGP card (which is a Nvidia GeForce 6600GT) I get that message again. I do not use VGA for that card I use my DVI cable for it. Does anyone have an answer for me to make this work? Thank you

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• Iomega Home Media Network Hard Drive 1TB Cloud Edition failed, data recovery?

  - by lonbon69

  I have a Iomega Home Media Network Drive Cloud Edition 1TB that started clicking and then displayed a failure LED code Power LED and Red LED. I removed the SATA drive and inserted in a 'All in 1 HDD Docking Station' and connected to laptop by USB - Laptop has Win 7 OS. The dock is seen as drive E but cannot access and says 0% data etc. The drive does spin up when I power the dock. Web searches say the drive has EXT3 file system and to use Ubuntu to access drive. I have now setup a dual boot laptop but still do not see the drive using ubuntu. Is there something else I need to do to get it recognised etc. I really would like to recover the data, any suggestions please?

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• How to re-partition?

  - by EDi

  I switched from Windows to Ubuntu 4 months ago and I am really happy with it. I set up a dual-boot system (since I wasn´t sure how it will end up with me and Ubuntu). After merging from Citavi to Zotero I need windows only for my scanner. The problem I have now is, that the windows partion is so big with lots of unused space and the ubuntu partition are quite small - I should have though about this problem 4 months ago... My partitions look like this: Where sda3 is the windows partition, sda5 is Ubuntu and sda7 is a data partition. I want to shrink sda3 and free some space for sda5 and sda3. How can this be done safely (and easily)?

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• How to transfer a windows disk, to another partition? (details within)

  - by TardisGuy

  So i have a new SSD... and its like... SOOO fast (but tiny, 128Gig). But it seems to be WAY faster in linux. (bonus: whats the best Filesystem?) Now, am i correct in assuming that if I Gparted copy paste the {Boot MSreserved_][__NTFS___] in to (1st Empty space, same partition) and it will be bootable right? Oh and... how do I disable "Journaling" i read that I should do that. Feel free to link any additional mods/apts/hacks/tweaks

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• INstlling ubuntu

  - by Erich

  Am trying to install ubuntu 12.04 on a pentium 4 with a hard disk that's been totally wiped clean. Have made an iso image, burned it on a cd and it has been verified. Checked to see if separate files have been burned on cd and they have. When I boot to the disk I get the word unbuntu with some progress dots, 5 min later it goes to a red screen with the mouse arrow on screen. It has stayed in this condition for over half an hour now. Help? erich

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• When trying running Ubuntu 12.10 off a usb drive, I encounter an error while prevent me from doing anything else

  - by Nil

  The details are that I used Universal USB Installer version 1.9.1.8 from pendrivelinux.com to install ubuntu 12.10 onto a 4gb pendrive as per instruction on Ubuntu's website. However, after I boot with drive I am met with the following message: "The system is running in low-graphics mode. Your screen, graphics card, and input device settings could not be detected correctly. You will need to configure these yourself." Pressing Ctrl Alt F1 doesn't allow me access and the options on the dialog box either send me through a loop returning me to the previous dialog or just leave me dead in the water. Pressing Ctrl Alt Del does however restart the computer if I am dead in the water, so ubuntu isn't COMPLETELY unresponsive... I feel I should mention that I'm trying to run this distribution on my netbook. I can't install it directly to the harddrive since I need my current Windows distribution for certain programs that don't quite agree with WINE yet.

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• What are steps in making an operating system in C ? [duplicate]

  - by ps06756

  This question already has an answer here: Compiler/OS Design - Where to start [closed] 3 answers I am trying to make an my own OS. This is for educational purpose only, so that I get to understand the internals as well as get a good idea of low level programming. I have some prior application development experience in C#/python/C++/C. I am a noob in assembly language(very less experience and knowledge). I understand that in writing an operating system,we can't go without assembly language. Currently, I have just printed a string in assembly language in the boot sector using qemu and BIOS interrupts. What I want is that, can someone specifically point out the steps that I need to follow to make my operating systems run C programs. So that, I can start writing my OS in C. Any other piece of advice to help a newbie, regarding the same is also welcome. Although, I have looked into many os development related tutorials/websites, I can't seem to find this information anywhere.

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• Access samba shares befor login

  - by everlearnin

  I installed Ubuntu 12.10 on an old Compaq C300. I want to use it to share my movies over lan so that the rest of my family can watch without hi-jacking my pc. I installed samba and shared the Public folder under the Home folder of my user account. But I can only access this folder from my Win 7 pc when I am logged in. If I log out or restart without logging in then I cannot access the shared folder. I am used to the Windows service that starts at boot making shared files available over the network before the user has logged in. How can I accomplish this in Ubuntu?

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• Ubuntu not saving files and settings when running from flash drive

  - by user81217

  How can I make Ubuntu run completely off of a flash drive? I have downloaded Ubuntu onto a 4gb flash drive but no changes I make are saved between sessions. I want to be able to run and save everything I do to the flash drive. I don't want it interfering with my hard drive at all. I just want to be able to plug my flash drive in the computer boot Ubuntu, and for it to save my changes. E.g. When I install Google Chrome, when I reboot it isn't there.

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• PCI function number for SATA AHCI controller

  - by Look Alterno

  I'm debugging a second stage boot loader for a PC with SATA AHCI controller. I'm able to enumerate the PCI bus and find the hard disk. So far, so good. Now, lspci in my notebook (Dell Inspiron 1525) show me: -[0000:00]-+-1f.0 Intel Corporation 82801HEM (ICH8M) LPC Interface Controller +-1f.1 Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller +-1f.2 Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller \-1f.3 Intel Corporation 82801H (ICH8 Family) SMBus Controller My question: Is SATA AHCI Controller always function 2 in any PC? If not, how I found? I don't pretend to be general; booting my notebook will be good enough, without compromise further refinements.

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• Cannot get grub menu to timeout (or go away)

  - by Eric

  I am running Ubuntu 12.04. I cannot for the life of me get the grub menu (with options) to go away. I would like it to auto-boot into the first option. I've edited /etc/default/grub so that it looks like the following: GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="" After this, I ran sudo update-grub. Then I realized that I had grub 2, so I ran sudo update-grub2 (both make it look like they create the grub.cfg file successfully. I restart my computer and it goes back to the grub menu and just sits there until I make a choice. This is not desirable if the power goes out... :-) I also tried reinstalling grub using sudo grub-install /dev/sda - also unsuccessful

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• kernel panic - not syncing vfs unable to mount root fs on unknown-block(1,0) on live cd

  - by sobox studio

  I'm trying to install ubunutu 12.04 on my 2005 PowerMac G5. I've burnt ubuntu-12.04-desktop-powerpc.iso. I try to boot from the live cd. I hit 'enter' to load the live environment. The kernel seems to be fine but then I get this: kernel panic - not syncing vfs unable to mount root fs on unknown-block(1,0) Then it says rebooting in 180........ and hangs. I can't do anything. Any help would be appreciated. Thank you.

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• No video signal after install

  - by tW4r

  Today I tried to install Ubuntu 12.10 to my machine, but all the time I encountered the same problem, I successfully boot from Ubuntu 12.04 DVD, and a purple background comes up with accessibility and keyboard icons at the bottom of the screen, then when you wait a while a monitor text comes up "No signal" (Keep in mind that this signal is only shown when there's cable in the monitor HDMI plug), and nothing happens, a little later disk drive stops flashing meaning that disk finished being read. Even if you reset the computer you still get no signal, you have to turn the power of and on again, and plug HDMI out and put it in again. My info: Graphics card: ATI/AMD Radeon HD 4850 Connection to monitor: HDMI Monitor: Samsung SyncMaster T220HD

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• lightdm.conf content erased, now stuck in low graphics mode

  - by user79318

  This evening I was attempting to disable the guest account and something went awry. Currently on boot Ubuntu enters low graphics mode. No specific error report. What did I do? Before this error occurred I added a line of code in lightdm.conf to disable the guest account. I think I may have accidentally erased the contents of lightdm.conf. Not entirely sure. I troubleshooted for the past hour using various suggestions from other Questions to no avail.

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• can't see second hard drive

  - by Todd K

  I had XP Pro installed, and then I installed 12.04 dual boot. System has 2 hard drives, c: (as in windows) is primarily OS stuff, and then E: is data/personal documents. XP can still see both drives as normal after the ubuntu install, but ubuntu can only see the windows C: drive. How can I access the second drive? I can't see any trace of it, using the little *nix know-how I have, which isn't much...any help is great! Thanks!

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• Unable to start ubuntu

  - by Ray

  Need your help here: I'm unable to start Wbuntu in my laptop. I'm sharing ubuntu with Windows 7 in my laptop, and after I install Ubuntu when I boot my laptop and choose ubuntu as my operating system the following error appears: Windows failed to start. A recent hardware or software change might be the cause. To fix the problem: Insert your windows installation disc and restart your computer Choose your language settings, and then click "Next." Click "Repair your computer." If you do not have this disc, contact your system administrator or computer manufacturer for assistance. File: \ubuntu\winboot\wubildr.mbr Status: 0xc0000098 Info: The selected entry could not be loaded because the application is missing or corrupt. Any ideas?

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• No video signal during: grub, for a moment when I log out and during shut down

  - by hushs

  When I should see the GRUB menu I only see my monitor writes out this: "No optimum mode. Recommended mode: 1600*1200". If i wait for a short while, ubuntu starts to boot and it reaches the desktop. So I guess there is no video signal during that time, there's the grub menu but i cant see it and after the wait time everything is fine. I have the same problem when I log out for a short moment, before the log in screen is reached. and this also happens when i shut down ubuntu. The VGA is an onboard NVIDIA GeForce 7025. Kinda strange problem, I have no idea how to solve this. Please help :)

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• Kubuntu permanent install won't attach sound card

  - by rob

  I installed Kubuntu Live version and sound card visible in the volume/mixer panel. After installing the permanent version I have a dummy output where my sound card should be, therefore no sound. I re-installed the live version three times and then to permanent but the same problem each time. There is a very brief error on boot up to the permanent version that says: error. cannot attach card default. no such file or directory. I'm running Kubuntu 12.04 on a Mac G4 PPC with no other OS. I'm very new to Linux. I am able to follow instructions to help resolve this, but I'm not familiar with the OS.

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• cannot unlock login screen 14.04

  - by LittleNooby

  When my computer boots, entering the correct password won't start my session. I found out the problem is /home/user/.Xauthority ownership. root owns this folder and giving the ownership to the user will solve the problem... for a while. I don't know how or when, but the ownership will go back to root pretty often; It can happen just after one boot or ten. Is there a definitive solution to this problem?

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• 12.4 LTS after update fails to login

  - by user111839

  An update today (30-11-2012) on 12.4 lead to failure to log in. The system gets through its boot process then presents the logins, on choosing any of these immediately returned to log-in screen with no error. Machine is an AMD FX 64 on an Asus MB using the built-in graphics. If no one knows what this might be, what's the alternative distro to Ubuntu? It's the second time something like this has happened after an update in three months, kudos to the Ubuntu team but I need more reliability. Cheers, thanks to all.

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• Dual display setup - only one displayed after logon

  - by oneofthemany

  During boot process my desktop shows both Monitors, but after log I only get one. I'm using Ubuntu 11.10 When I go into Displays its still only shows on Monitor. Here is my graphics card details: 01:00.0 VGA compatible controller: nVidia Corporation G72 [GeForce 7300 LE] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell Device 0405 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at dd000000 (32-bit, non-prefetchable) [size=16M] Memory at c0000000 (64-bit, prefetchable) [size=256M] Memory at de000000 (64-bit, non-prefetchable) [size=16M] [virtual] Expansion ROM at dfe00000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: nvidia Kernel modules: nvidia_96, nvidia_173, nouveau, nvidiafb

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• Un blogueur dévoile un iPhone tournant sous Android, alors que les relations entre Google et Apple s

  Un blogueur dévoile un iPhone tournant sous Android, alors que les relations entre Google et Apple sont au plus mal Alors que la situation est des plus tendues entre Apple et Google, les deux concurrents se retrouvent réunis sur un même appareil. Un informaticien passionné a en effet trouvé le moyen de faire tourner son iPhone sous Android. Cela fait déjà un an qu'il essaie et expérimentent divers techniques pour arriver à cette cohabitation de systèmes, avec plus ou moins de succès. Il dit avoir perdu du temps en se laissant distraire par le jailbreak. Grâce au dual boot, ils peuvent passer le l'OS iPhone à celui de Google. Planetbeing, le blogueur derrière cette initiative, a publié aujourd'hui une v...

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