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• USB 3.0 Device not detected in Windows 8

  - by Tek

  About my setup: Windows 8 64-bit. X79-UD3 Motherboard. Latest Windows 8 USB 3.0 Drivers from motherboard manufacturer website. All right so device manager detects my USB 3.0 ports, so all is well there. However when I plug in my external USB 3.0 hard drive, windows doesn't even make a beep; the hard drive is not picked up by device manager at all. The SAME thing happens with Ubuntu 12.10 BUT adding PCI=nomsi (as a workaround) to the Grub command line of the Ubuntu boot option makes Ubuntu 12.10 detect my external hard drive. I also have a few other doubts, if you guys would be kind enough to answer them that include: Should XHCI hand-off in the UEFI bios be enabled or disabled for Windows 8? The difference between XHCI hand-off and EHCI hand-off and what are it's effects on USB 3.0 functionality? And last but not least how can I get Windows 8 to recognize my external hard drive when Ubuntu 12.10 (after the Grub workaround) works fine?

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• can power supply affect I/O

  - by user101289

  I have a dev server machine running Ubuntu 12.04. For a long while it's been throwing intermittent errors where it would suddenly tell me "File system is read only" or drop into a GRUB error console on boot. I've done disk checks, bad blocks, etc. and no real problems with the main SATA drive were detected. Finally the drive would not be detected at all-- but neither would other drives I plugged in (via SATA). I plugged the supposedly "bad" drive into another server and it worked fine, no issues, for days-- so I assumed the motherboard had a bad SATA controller, and replaced the motherboard with an identical model. I replaced the drive into the original machine with the new motherboard, rebooted-- and the same issues-- I/O errors, failure to read the drive at all, dropping into GRUB, etc. I'm wondering if there could be some other issue with this machine, that's not related to the drive-- possibly power supply? Thanks for ideas

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• Wired PS/2 Keyboard and Mouse do not work in 12.04 Live CD or after fresh 12.04 install - Foxconn D270S Atom Motherboard

  - by david krajewski

  My Wired PS/2 keyboard and mouse do not work in 12.04, either in a fresh install or from the Live CD. A USB keyboard and mouse will work. The PS/2 keyboard and mouse will work using the same hardware and a fresh 10.04 Ubuntu install or a fresh Windows 7 install. The motherboard is a Foxconn D270S Atom based motherboard. This problem is specific to this motherboard and Ubuntu 12.04. So far I've tried running in the fresh 12.04 install: sudo apt-get install sudo apt-get upgrade sudo apt-get dist-upgrade After the apt-get upgraded the first time, I now get to the point where there are 0 items to be upgraded. Rebooted and still no PS/2 keyboard/mouse. I've also tried adding the following lines to GRUB at boot time (the PS/2 keyboard works in GRUB) acpi=noirq acpi=off Neither setting made any difference. The motherboard is a Foxconn D270S Atom based motherboard. Even more interestingly, 12.04 recognizes the same PS/2 keyboard and mouse on a separate Gigabyte AM3+ based motherboard. I only have this problem on this particular motherboard with Ubuntu 12.04. Any help would be appreciated. I bought this low-power motherboard specifically for the task of running Ubuntu 12.04 for the next five years... Update... I dug out an old PS/2 mouse that does not use a PS/2 to USB adapter but is directly wired for PS/2. Still no PS/2 keyboard or mouse after reboot. Again, I only have this problem with this motherboard and 12.04 Ubuntu. Other motherboards work fine with 12.04 and this motherboard works fine with 10.04. Update 2... I installed the 12.04 Server version. The text-based installer recognized the keyboard without issue, but after the first boot into the installed OS, the PS/2 keyboard would no longer respond. I tried installing Gnome on the Server install and the PS/2 mouse and keyboard don't work in Gnome either. I Opened bug #995570 for this issue

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• Triple boot vista xp ubuntu

  - by Artyom2033

  My partition table is pretty messed up from install/uninstall os and what I want to do now is to clear that and have vista/xp/ubuntu 12.04 on the same hard drive. I have create a new partition for xp on vista, everything was fine, but when I restarted my pc, I was getting the grub restore prompt. Even when I was trying to install xp, when the 'lunch windows' came, a wild BSOD appear. So I have deleted my partition for xp using gParted include in the 12.04 live cd. This haven't resolve the problem and I am still unable to boot in vista nor ubuntu. But I realy what this triple boot for LoL purpose (since my vista installation keep giving latency spike in this game and I hope this will not be the case in a fresh xp installation (I have tested it in ubuntu, the ping was good, but the fps wasn't). So what I want to do, is to install xp on a partition, then be able to boot on any of them without a problem from a nice installation of grub or something. gParted screenshot Thanks for help. Sorry for my English.

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• Unity stuck in 2D mode, Nvidia Quadro graphics "unknown", Nvidia-Current active but not in use

  - by Jordan Lund

  I've seen this problem reported under several questions, but I haven't been able to resolve any of it so I thought I'd bring it all in under one umbrella. I started a new job and was given a Dell Precision M6400 laptop with Nvidia Quadro FX 2700M graphics card. It had a previous version of Ubuntu on it, but nobody had any passwords for it so I wiped the drive and did a fresh install of 11.10 from scratch. I didn't do any updates during installation, preferring to do them after boot. Updates ran fine and the system works... except Unity is in 2D mode. System Settings - Additional Drivers shows that Nvidia-Current is active but not in use. System Settings - System Info shows Graphics Driver Unknown, Experience Standard Nvidia X Server Settings is installed and working, re-writing the xorg.conf did nothing. /usr/lib/nux/unity_support_test -p OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: Quadro FX 2700M/PCI/SSE2 OpenGL version string: 3.3.0 NVIDIA 285.05.09 Not software rendered: yes Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: yes GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: yes GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: yes One suggestion was to do a sudo apt-get --purge remove nvidia* and that resulted in a scrambled screen on boot and a non-bootable installation. Pressing the Delete key on boot allowed me to access the recovery console and do a sudo apt-get install nvidia-current, which brought me back to a working, bootable system. Another suggestion was to edit /etc/default/grub and change the line reading "GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to read "GRUB_CMDLINE_LINUX_DEFAULT="quiet splash vmalloc=192MB" thus allocating more video RAM. I did that, followed by a sudo update-grub and a re-boot. No change. Created a brand new standard user and logged on with that account, no change.

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• very long boot up with Ubuntu 10.04.4

  - by wt70707

  I installed Ubuntu 10.04.3 on Atom. Then I do the update and upgrade with: #apt-get update #apt-get upgrade #apt-get dist-upgrade The system can boot up now but in almost 2 minutes. After power on and system test, it will stop at "Verifying DMI pool data" for 10 seconds before the GRUB menu comes up. Then after the choosing of one item, to the start up of OS there is 100 seconds of black screen. The start up after that is normal and the operations in the system is also normal. I am concerned with if it is of hardware problem, or just some problem with the kernel. Also I want to know after "Verifying DMI pool data" what is done? And after we choose an item in GRUB menu, what does the system do? And where can I see the procedure of the whole boot up? The /var/log/boot.log is too simple, and this is it: fsck from util-linux-ng 2.17.2 fsck from util-linux-ng 2.17.2 /dev/mmcblk0p5: clean, ...... /dev/mmcblk0p1: clean, ...... * Starting AppArmor profiles Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox OK] * Setting sensors limits OK]

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• unable to load nvidia(bumblebee) in ubuntu 14.04 (only nouveau loads)

  - by Ubuntuser

  Bumblebee stopped working on my system after upgrading to stable version of Ubuntu 14.04. DUring installation I get this error rmmod: ERROR: Module nouveau is in use Setting up bumblebee (3.2.1-90~trustyppa1) ... Selecting 01:00:0 as discrete nvidia card. If this is incorrect, edit the BusID line in /etc/bumblebee/xorg.conf.nouveau . bumblebeed start/running, process 11133 Processing triggers for initramfs-tools (0.103ubuntu4.1) ... update-initramfs: Generating /boot/initrd.img-3.14.1-031401-generic Setting up bumblebee-nvidia (3.2.1-90~trustyppa1) ... Selecting 01:00:0 as discrete nvidia card. If this is incorrect, edit the BusID line in /etc/bumblebee/xorg.conf.nvidia rmmod: ERROR: Module nouveau is in use bumblebeed start/running, process 18284 It says nouveau is in use. I checked the loaded modules lsmod | grep nouveau nouveau 1097199 1 mxm_wmi 13021 1 nouveau ttm 85115 1 nouveau i2c_algo_bit 13413 2 i915,nouveau drm_kms_helper 52758 2 i915,nouveau drm 302817 7 ttm,i915,drm_kms_helper,nouveau wmi 19177 3 dell_wmi,mxm_wmi,nouveau video 19476 2 i915,nouveau However, I have nouveau in my blacklist cat /etc/modprobe.d/blacklist.conf | grep nouveau blacklist nouveau blacklist lbm-nouveau alias nouveau off alias lbm-nouveau off My grub is also set to nomodeset cat /etc/default/grub | grep nomodeset GRUB_CMDLINE_LINUX_DEFAULT="nomodeset quiet splash" My graphics card is nvidia optimus lspci | grep -i vga 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18) 01:00.0 VGA compatible controller: NVIDIA Corporation GT218M [GeForce 310M] (rev ff) I've raised a bug in launchpad: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1327598 Note: Nvidia-prime is working for me (partially). Frequent mouse locks. Interestingly, bumblebee works perfectly fine on my fedora 20 partition on this same laptop.

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• Booting from USB on Mac Air (using setup_mac_usb_boot.sh)

  - by Mike O

  So, I've been working on this for hours and it's getting a little tiring. As some of you may know, installing Ubuntu on Macs is frequently an adventure, and I'm experiencing that right now. The part I'm hung up on at the moment is making a bootable USB. I would just use a CD, but my laptop is a MacBook Air (which doesn't have a CD drive), and I don't own an external CD drive. I initially attempted to use the command line method supplied by the Ubuntu documentation here: https://help.ubuntu.com/community/How%20to%20install%20Ubuntu%20on%20MacBook%20using%20USB%20Stick However, that wasn't even recognized by rEFIt even when I made a number of different modifications to the process, so I quickly decided to look elsewhere. I came across this guide: https://help.ubuntu.com/community/MacBookAir4-2#Basic_Installation_Instructions This ended up working to a large extent. If I choose the supplied grub from rEFIt, it will bring me to the Ubuntu grub, asking me to try it, install, or check the disk. And if I choose to boot Linux directly from rEFIt, it will bring me to the language selection menu. But when I make my selection from either of these menus it pauses for about ten seconds and then gives me a command line error message. It begins with kernel panic - not syncing timer doesn't work through interrupt, and then shows about eight file names. Does anyone here have any ideas as to what can be causing this? I also tried the script with both Ubuntu 11.10 (the current version when the script was written) and 12.04.

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• Can't adjust backlight on an Nvidia 335m GT

  - by Vladimir

  I have a laptop mySN QMG6 / Chiligreen Mobilitas NW which is Quanta TW9 barebone with intel i3 and nvidia 335m GT onboard. On ubuntu distros 10.04, 10.10, 11.04 and 11.10 i had problem with changing screen backlight with nouveau and nvidia drivers. FN+F4/F5 buttons did not change my brightness. I tried to edit xorg.conf, adding Option “RegistryDwords” “EnableBrightnessControl=1? Also tried to add some lines to grub acpi_osi="Linux" acpi_backlight=vendor Neither worked for me. Today I installed Ubuntu 12.04 beta2 and... With nouveau driver my FN key works, and changes the brightness (is it a new 3.0.22 linux kernel, or patched nouveau driver, i don't know). This is a big step forward. But, when installing proprietary nvidia driver (295.33) FN button stops working and i can't change brightness. I also tried workaround with xorg and grub with no result. Tried to install acpi from apt - no result. Is there anything left to try? I really need that nvidia driver working with FN keys, as i would like to have a working 3D acceleration. P.S. Does the nouveau driver has 3d acceleration like nvidia drivers??? If there is need to provide some log data, please write what should i print, as i'm a bit new to Ubuntu. P.P.S. Same problems i had with other Linux distros (Mint, Fedora and others) P.P.P.S. Other FN buttons work with both drivers (Mute, VOL UP/DOWN, WiFi on/off, Bluetooth, Sleep, Start/Pause, Stop, Next/Prev song) Some new thoughts... CONFIG_BACKLIGHT_GENERIC=m could this be an issue? Made this by grep BACKLIGHT /boot/config-3.2.0-22-generic-pae Full grep output can be viewed here: http://pastebin.com/sMRd2Z4k

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• Cedarview drivers boot to a blank screen

  - by map7

  I'm following the tutorial following tutorial to get my Intel D2700DC motherboard's graphics working: http://daily.siebler.eu/2012/06/ubuntu-12-04-driver-for-intel-cedarview-atom-n2000-und-d2000-serie/ When I boot I'm getting a blank screen. I followed the tutorial and read all the comments. I've also tried: Install gdm and use this instead of lightdm (ubuntu default) sudo apt-get install gdm Remove previous pae kernel: http://www.liberiangeek.net/2011/11/remove-old-kernels-in-ubuntu-11-10-oneiric-ocelot/ Reboot before adding cedarview packages. Have tried with and without the "video=LVDS-1:d" to GRUB_CMDLINE_LINUX_DEFAULT variable in /etc/default/grub I still get a blank screen. I am plugged into a HD screen through the HDMI and have tried the DVI connector also. I can see the grub menu, then a little of the loading and then 'No signal'. I can still ssh into the box though so it is logging in. lspci -v -s 00:02.0 00:02.0 VGA compatible controller: Intel Corporation Atom Processor D2xxx/N2xxx Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation Device 2011 Flags: bus master, fast devsel, latency 0, IRQ 45 Memory at 80100000 (32-bit, non-prefetchable) [size=1M] I/O ports at 20d0 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: pvrsrvkm Kernel modules: cedarview_gfx uname -a Linux test-desktop 3.2.0-35-generic #55-Ubuntu SMP Wed Dec 5 17:45:18 UTC 2012 i686 i686 i386 GNU/Linux

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• Acer aspire one d270 can not set brightness

  - by Marko

  I hope you can help me figure out how to set the brightness at my netbook. Following problem appears since I installed ubuntu 11.10 on my acer: I am not able to adjust the brightness by FN Keys nor manually at "systemsettings-display". After searching with google for a while, I found a way via the terminal to adjust it with the folloqing command: "sudo setpci -s 00:02.0 f4.b=7f" ( from 00-9f). That was a major breakthrough for me as I am still new to Linux OS. But still seeking a way to get the FN keys for brightness to work, I kept searching until I found "askubuntu.com". I read through various Questions by other acer users and tried there solutions, but unfortunately none worked out for me. From this thread: fn + arrow keys don't adjust actual brightness on an Acer Aspire 5740 "sudo gedit /etc/X11/xorg.conf". This command did not work because the file was not found. I also used nano instead of gedit, but the file was empty( I think it just created the file since it did not exist). These commands which i found gave me a boot loop and I had to repair ubuntu: sudo gedit /etc/default/grub Change the line GRUB_CMDLINE_LINUX="" into GRUB_CMDLINE_LINUX="acpi_osi=Linux" sudo update-grub From this post Screen Brightness not adjustable for Acer Aspire S3: I tried the solution from the last post, but it did not work either. Does anyone know what I could try? I would appreciate it, if someone could help me out with this. Thanks in advance Netbook specs: CPU: Intel Atom N2600 Memory: 2gb DDR3 Storage: 320 GB HD GPU: Intel GMA 3600

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• Unable to access ubuntu through windows boot manager

  - by Arvind

  I am having an ASUS K55VM....it came with DOS....to this Windows 7 was installed...now i am planned to add another OS ie Ubuntu...my computer had 4 partitions of 240GB 230GB 230GB and 230GB....i changed this to 5 parts....243GB 230GB 230GB 150GB and an 80GB...i installed Ubuntu 12.04 to the 80GB partition through a USB flash drive....it installed fine...however the problem is during the Boot option in Windows Boot manager when i choose Ubuntu...this what is displayed... Windows failed to start. A recent hardware or software change might be the cause. To fix the problem: 1.Insert your Windows installation disc and restart your computer. 2.Choose your language settings, and then click "Next." 3.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: 0xc000000e Info: The selected entry could not be loaded because the application is missing or corrupt. I tried to change the boot option for the OS and made Ubuntu as my first option....It worked...however windows 7 does not show up in GRUB....in this fear i did the following: Restarted my pc changed boot option 1 to windows. Formatted the drive to which Ubuntu was installed(80GB one)through windows. Restarted again. The problem persists....Windows boot manager shows Ubuntu still and when i choose this it gives two lines one like: grub rescue....but my windows 7 is working perfectly fine. Now want a solution to remove Ubuntu from the windows boot option and reinstall completely...

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• Missing Operating System after trying to upgrade to Ubuntu 11

  - by Mauricio

  there! After trying to upgrade from Ubuntu 10.04 to 11, the upgrading process stopped when running and then I got an "out of disk, grub rescue" message when booting. After running Boot Repair, I got this results. Now I get "Missing Operating System" whent trying to boot. Bellow I show some results from some commands I gather from help foruns, but I still reached no solution. Could you please help me? Any enlightment will be very helpful! Disk Utility says "Disk has a few bad sectors". When trying to run the Self-test I get "FAILED (Read)" Here we have what Gparted says about the /dev/sda1 partition (ext4): Flags: boot Status: not mounted Warning: e2label: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda1Couldn`t find valid filesystem superblockUnable to read the contents of this filesystem! From sudo fdisk -lI got: Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x000e0596 Device Boot Start End Blocks Id System/dev/sda1 * 2048 607428607 303713280 83 Linux/dev/sda2 607430654 625141759 8855553 5 Extended/dev/sda5 607430656 625141759 8855552 82 Linux swap / SolarisDisk /dev/sdb: 320.1 GB, 320072933376 bytes255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000c3c41 Device Boot Start End Blocks Id System /dev/sdb1 * 63 625137344 312568641 c W95 FAT32 (LBA) " and fromsudo fdisk /dev/sda1I got fdisk: unable to read /dev/sda1: Inappropriate ioctl for device` From sudo mount /dev/sda1 /mntI got: mount: wrong fs type, bad option, bad superblock on /dev/sda1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so From sudo update-grubI got: error: cannot read from `/dev/sda'. /usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).

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• Ubuntu 13.10 installed and worked, but now not working

  - by San

  I have a HP G7000 laptop. I updated/upgraded from 13.04 to 13.10, after the software updater recommended I upgrade. I have duel booting system with Windows Vista. The system was working for the past two days, but I start getting the errors below, after selecting Ubuntu in Grub Menu on startup and at the splash screen it says "Press S to Skip or M for manual configuration" Pressing S gives a black screen and m takes you the errors below. Windows boots and works fine after selection in the Grub Menu. [ 15.235703] EXT3-fs (sda5): error: unrecognized mount option "discard" or missing value. [ 16.788072] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode flags [expected 2, found 0] [ 20.860071] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode flags [expected 2, found 0] [ 20.980076] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode flags [expected 2, found 0] Root filesystem Check failed root@simamhar:~# Tried boot-repair using the LiveCD method, no luck. System still gives above error. (you can view the boot-repair log here http://paste.ubuntu.com/6287287) When I use the liveCD for 13.04 or 13.10 however, my hard disk is recognized and I can read the files. Why is it that the installation on the hard disk has stopped working and does not recognize my / ? What do the above errors mean and how can i solve them? There was no power failure before, during or after the update/upgrade process from 13.04 to 13.10. I now would like to go back to 13.04 without reinstalling afresh? Any help will be appreciated. Thanks.

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• How to dual-boot Windows XP & Ubuntu 12.04

  - by user115554

  When I install Ubuntu 12.04 along side Windows XP, I encountered a choice for "Device for boot loader installation". I selected "Windows XP Professional" Now, when I select Windows XP from the grub, it appeares a black page and Windwos dosent boot. I tried Boot-Repair from Ubuntu but it dosent solve this problem. The only thing that helps me to boot Windwos XP is a Bootable CD of Windows. when I put this CD and boot from CD, it shows some options and when I select "Boot from Hard Drive" , my own Windows boots! Here's is a snippet from the bootinfoscript report: ============================= Boot Info Summary: =============================== => Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of the same hard drive for core.img. core.img is at this location and looks for (,msdos5)/boot/grub on this drive. sda1: __________________________________________________________________________ File system: ntfs Boot sector type: Grub2 (v1.99-2.00) Boot sector info: Grub2 (v1.99-2.00) is installed in the boot sector of sda1 and looks at sector 525709174 of the same hard drive for core.img, but core.img can not be found at this location. No errors found in the Boot Parameter Block. Boot file info: Grub2 (v1.97-1.98) in the file /mbr_backup.log looks at sector 1 of the same hard drive for core.img, but core.img can not be found at this location. Operating System: Windows XP Boot files: /boot.ini /ntldr /NTDETECT.COM

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• How to know which partition is which?

  - by user206870

  Well I was just wondering what partition belongs to which. On my computer I have Windows 7 and two Ubuntu systems (it was an accident, which is why I need to know which partition is which). So how do I know which one is which?? PS here's the codes: jp@jp-Satellite-L555D:~$ sudo update-grub [sudo] password for jp: Generating grub.cfg ... Found linux image: /boot/vmlinuz-3.11.0-12-generic Found initrd image: /boot/initrd.img-3.11.0-12-generic Found memtest86+ image: /boot/memtest86+.bin Found Windows 7 (loader) on /dev/sda1 Found Windows 7 (loader) on /dev/sda2 Found Windows Recovery Environment (loader) on /dev/sda3 Found Ubuntu 13.10 (13.10) on /dev/sda7 done jp@jp-Satellite-L555D:~$ sudo fdisk -l Disk /dev/sda: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xf6f5148e Device Boot Start End Blocks Id System /dev/sda1 * 2048 3074047 1536000 27 Hidden NTFS WinRE /dev/sda2 3074048 213421022 105173487+ 7 HPFS/NTFS/exFAT /dev/sda3 469676032 488396799 9360384 17 Hidden HPFS/NTFS /dev/sda4 213422078 469676031 128126977 5 Extended /dev/sda5 300185600 463910911 81862656 83 Linux /dev/sda6 463912960 469676031 2881536 82 Linux swap / Solaris /dev/sda7 213422080 300185599 43381760 83 Linux Partition table entries are not in disk order Thanks to whoever can answer this. Another quick question, what is the extended partition??

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• Won't boot after installing Ubuntu 12.04 sucessfully

  - by Matt

  I installed 12.04 successfully and rebooted (I took out my installation CD), and selected the newly installed Linux partition to boot from rEFIt. Then it just comes up with this error message: Error loading operating system which could not be more vague. Take that back. I guess it could say just "error." I don't even get to the boot prompt which limits what I can do. I cannot boot into rescue mode. I tried boot-repair, but it took more than 24 hours to check the system configuration, so I gave up on that. I'm running a Mac Mini with its main OS being Mac OS X 10.5.8. I have an alternate OS Windows XP installed, which was virtually destroyed by this Linux installation. I sacrificed my working, speedy Windows partition for something that won't even boot up. What was I thinking. My Mac partition is slow as crap. I've tried installing 12.04 many times with two different disks. The first time, I had one partition for Linux, then I had 2 (swap+main), then 3 (swap, main and BIOS), then 4 which is what I have now (swap, main, BIOS, and boot/grub). The only way I could get through the install without GRUB giving up was if I created a separate partition for it. Which was pointless, because it did install successfully, but it still doesn't boot up at all. Could rEFIt be booting off of the BIOS or one of the other partitions? Because if that's the case, there is no alternative, because Mac itself without rEFIt refuses to recognize a Linux ext4 (or 2 or 3) format partition. Apple always has to make everything so difficult. If I'm not mistaken, rEFIt is the only application of its kind for Mac. I can boot off of the CD back to the install/try screen. This is extremely upsetting, can you guys help? Please?

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• Unable to start lightdm but can startx

  - by wzyboy

  I am trying to make my own Live USB and I have successfully generated an ISO file with a newly installed, configured and customized Xubuntu 12.04 LTS installation. My problem is that, no matter I boot the ISO in VirtualBox or in GRUB with loopback, it just cannot start the lightdm. When booting, I can see the log messages on the screen, it stucks at Stopping System V compablities or Configuring Network security. And tty7 is frozen... If I switch to tty1, I can get a logged-in shell as ubuntu@ubuntu. The weird thing is: When I type sudo start lightdm or just sudo lightdm, it will switch to tty7 and the screen flashes. Then nothing happened. Return to tty1 and I can see lightdm running, process xxxx. But the process does not exist. It was just crashed immediately I think. (That's why the screen flashes.) However, when I type startx, I can get into the desktop! That's amazing for me. I am not very clear about the relationship between X Server and Display Manager, but I think lightdm is running when I see the desktop! Then, what's wrong with sudo start lightdm? I use this command every time I power on my laptop since I have a text parameter added in grub.cfg. It never "crashed immediately". I need to use sudo start lightdm because it gets me into "Xubuntu Session" instead of "Xfce Session", the prior is more beautiful... Could anyone help?

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• Dualboot harddisk encryption

  - by amfcosta

  I have a system with both Ubuntu 11.10 and Windows 7 and I want to encrypt the whole harddisk or at least some of my partitions. My partition table is something like this (the ones marked with * are the ones that need to be encrypted): Windows boot reserved partition *Windows system partition (ntfs) *Windows data partition (ntfs) Ubuntu root partition (ext4) *Ubuntu home partition (ext4) Ubuntu swap As I said I don't need to encrypt the whole disk. What is the best way to accomplish this? Maybe something (TrueCrypt?) where I enter the password before the system boots so that it decrypts the whole hdd? Or maybe individual encryption using Windows-only encryption (for Windows partitions) and Ubuntu home encryption (well, for Ubuntu home partition)? By the way, I almost always use Ubuntu, so it would be nice if I could continue to boot Ubuntu by default but have an option to boot Windows too (like in grub). EDIT: I was thinking of doing this: encrypting ubuntu home with eCryptfs (I think this is used to encrypt home when selected during installation). Encrypting Windows partitions with TrueCrypt. Still having Grub as a bootloader, when I choose ubuntu everything goes as normal (home is decrypted when login in). When I choose windows the TrueCrypt password prompt shows and windows boots.

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• ubuntu mass deployment kickstart file how/where?

  - by gkrawiec

  i've succesfully been able to prepare an OEM image that is ready to be cloned and installed in about 1100 machines. My only issue right now is that when the machine boots for the first time it asks for the basic setup questions. I think I have the kickstart file ready, but I dont know how to call it. My logic says that before I run the "prepare to ship to end user" script that I have to modify the boot parameters to call the ks file so the ks.cfg file goes with each drive. My issue is I cant figure out how to modify the boot parameters. Also, i dont know if there is a log i can check to see if its actually calling it or not. I am using ubuntu 12.04 desktop x64. I am trying on /etc/default/grub by modifying one line from GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash ks=file:/ks.cfg" then I run an update-grub but its not working. My ks.cfg file is: ----------------------- #Generated by Kickstart Configurator #System language lang en_US #System keyboard keyboard us #System timezone timezone America/Tijuana Initial user user mytestuser --fullname "Test User" --iscrypted --password $sdfsfsdgthrttyujtkyktru #Rebootafter installation reboot ------------------------- what am I doing wrong? thanks, -gk

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• Dual Boot, Dual Hard Drives!

  - by Mars

  I'm posting this question after reading most of similar ones. My situation is different here in the fact that I'm installing on SSD and not partitioning my HDD, and that I can actually boot! I'm just looking to improve the convenience of having easier way to choose. 1- I have a Dell Inspiron 15R SE. It has HDD (1TB) and SSD (32GB). I managed to do whatever things I did in distant past to set the SSD free (I don't really care how fast my system boots). Now I wanted to install Linux on the SSD and leave the HDD untouched. It's way too precious for me to mess with it. So, I repartitioned the SSD to: 30GB for /root, 1GB for /swap, and 100MB for /boot. I installed Linux on the root and the GRUB on boot (of the SSD). Now GRUB immediately boots into linux and doesn't allow me to boot to Windows. BUT! If I enable UEFI Boot manager and choose "Windows Boot Manager" after hitting F12, I can boot into Windows 8 normally. I'd say that's pretty ok, except, I'd prefer to have the option to boot into which one or at the very least, default to boot to Windows. 2- I'm concerned that if I now delete the SSD partition, that the boot will break and I won't be able to boot anything! Does this seem like a valid concern? I made that choice of having linux on SSD because I'm going to be training on it, so I expect multiple resets from time to time.

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• Boot from external usb hdd won't work in 12.04

  - by Ben Andersen

  I've been running 10.04 on an external USB HDD without problems for years. I installed 12.04 on an external USB HDD and it worked until I upgraded to all the new packages. But after that it wouldn't boot. I just got into the grub prompt. So then I tried installing on the disk inside the computer and that worked fine. But when I take it out and use it as an external USB HDD I just get: error: hd0 out of disk. grub rescue> How can I fix this? So why do I want this you might wonder? Well I have a laptop at home and a somewhat similar at work. And I just move the disk between them and don't have to move a heavy laptop. So I really hope I can continue doing this with 12.04! The old disk is only 80Gb but the new one is 320Gb (7200rpm Toshiba). I'm using 12.04 on a 64Gb SSD as an external drive and it warns about out of disk but it boots anyway most of the times.

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• Chainloading GRUB2 from BURG

  - by WindowsEscapist

  I have an old PC with Puppy Linux in addition to Ubuntu and Windows XP. THis creates a LOT of menu entries (all of which I would like to keep): Ubuntu 10.04 Ubuntu Recovery Mode Memtest x86 Memtest Serial Windows XP Pro Precise Puppy Linux Precise Puppy TORAM Puppy 4.3.1 Puppy 4.3.1 TORAM Plop Boot Manager (for booting to USB, PC doesn't have BIOS option). Now, in my fancy shiny laptop I've gotten really attached to BURG, and would like a setup where I have a Windows icon, an Ubuntu icon, and an arrow that chainloads GRUB2 so that I can boot from USB or run Puppy if need be (all these entries will obviously not fit into the BURG theme I use, Lightness). The problem is, GRUB2 can't install the the beginning of a partition like it used to be able to (I am reluctant to specify andything with --force at the end), at least, without warning that warn: This is a BAD idea!. So I'm kind of at a loss here. I can't see how the folding option would work, because all of those other options would have the same icon once I unfolded (Lightness is non-text-based). If I do embed GRUB using grub-install /dev/sdax --force, how do I chainload it with BURG? Is there another way?

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• NVIDIA Graphics - resolution problems with new 12.04 LTS installation

  - by Daveisuser56810

  I've been trying to install Ubuntu 12.04 LTS on my desktop most of the day. The desktop uses a NVIDIA GEFORCE 9800 (GT I think) graphics card. I am unable to set the correct resolution (1680 x 1050) for the display. The first problem I had was that of the "Black Screen" during install. I overcame this by utilising the "nomodeset" switch on the install options (once I'd found how to do that). The second problem of course was the "Black screen" following the first reboot. Once again this was overcome by using "nomodeset", this time by "editing" the GRUB. This gave me a resolution of 1280x768 which, the Displays GUI allowed me to change to 1280x720 (appears to fit on screen). I then tried to install the NVIDIA drivers. 1) using additional drivers 2) manually by downloading driver and installing in root As soon as NVIDIA drivers are installed - resolution become restricted to 640x480 (max). At this resolution Ubuntu GUI is not usable as most screens are larger than the display. Removing the NVIDIA driver and removing the XORG.CONF file does not lift this restriction. I have tried most things that I have found and that were vaguely intelligible, but nothing appears to get me closer to a resolution of 1680x1050. UPDATE: reinstalled Ubuntu 12-04 and used the "NoModeSet" in the Grub to restore the resolution to 1280x720, which is at least usable. Will live with this for now.

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• Colored Vertical Lines upon boot and nomodeset DOES NOT fix it

  - by user2851032

  I have installed Lubuntu 13.04 on a Dell Inspiron 1501 laptop, rebooted the machine and encountered this problem. I edited the GRUB configuration to remove "quite splash" and enter "nomodeset", updated grub, and everything was fine. I could reboot the machine without any trouble. However, if I unplug the machine, wait a few seconds, and plug it back in, the problem with the colored lines comes back and nomodeset no longer helps to solve the problem. I tried using radeon.modeset=0 instead of nomodeset and that also works on multiple reboots until I unplug the machine and plug it back in. I was finally able to get around the problem by entering "radeon.exapixmaps=0" instead of radeon.modeset=0. I suppose I kind of made up that boot option using some information from an Arch Wiki page. This would work throughout reboots and even if I unplugged the laptop. It was working fine for quite a while. A few weeks later, I had some unrelated issues with the Java iced-tea plugin, and since 13.10 had just come out, I thought I would try upgrading. So upgrading didn't fix the problem with Java, and after unplugging the machine and trying to use it later, I was back to this problem with the black screen and colored vertical lines. I am completely out of ideas on what to try. It took me a week to figure out how to get it working the first time, but the solution I had isn't working anymore.

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