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Thread: Can't use Ubuntu

  1. #1
    Join Date
    Oct 2011
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    Can't use Ubuntu

    Yesterday when I turned my laptop on, Ubuntu wasn't working at all. It sent me to a black screen where I have to choose what Ubuntu I want to run. I chose the first one: Ubuntu, with Linux 2.6.35-32 Generic. Recovery mode also doesn't work.

    Once I click on the first one, it sends me to another black screen. This one with a long message:

    [ 3.527172] Slow work thread pool: Starting up
    [ 3.532936] Slow work thread pool: Ready
    [ 3.538598] acpi device: 0a registered as cooling-device1
    [ 3.539054] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVideo:01/input/input4
    [ 3.539302] ACPI: VideoDevice [GFXO] (multi-head: yes rom:no post: no
    [ 3.539348] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02:0 on minor 0
    No init found. Try passing init= bootary.
    BusyBox v1.15.3 (Ubuntu 1:1.15.3-1ubuntu5) built-in shell (ash)
    Enter 'help' for a list of built-in commands
    (initramfs)

    Right now I am currently using a Ubuntu installation disk on the Try It option. I tried using my installation disk to re-install Ubuntu, but it won't let me. I click install, and then it sends me to a screen with some options. When I press forward (to install), my computer freezes and won't let me do anything.

  2. #2
    Join Date
    Jul 2005
    Location
    England
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    Re: Can't use Ubuntu

    You may have a filesystem problem so first thing I would do, having got that busybox error is to boot to the live CD desktop, then in a terminal run
    Code:
    sudo e2fsck /dev/sda1
    assuming sda1 is your ubuntu root partition. Make a note of any error messages that appear, and copy them here.

    You will need to make sure that the root partition is unmounted before you can run the filesystem check on it, but it should be if you have not specifically mounted it for other purposes.
    DISTRO: Xubuntu 12.04-64bit --- Code-tags --- Boot-Repair --- Grub2 wiki & Grub2 Basics --- RootSudo

  3. #3
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    Oct 2011
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    Re: Can't use Ubuntu

    ubuntu@ubuntu:~$ sudo e2fsck /dev/sda1
    e2fsck 1.41.12 (17-May-2010)
    e2fsck: Device or resource busy while trying to open /dev/sda1
    Filesystem mounted or opened exclusively by another program?



    That's what I got when I did that. How do I unmount it?

  4. #4
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    Jul 2005
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    Re: Can't use Ubuntu

    Quote Originally Posted by barrdakota View Post
    ubuntu@ubuntu:~$ sudo e2fsck /dev/sda1
    e2fsck 1.41.12 (17-May-2010)
    e2fsck: Device or resource busy while trying to open /dev/sda1
    Filesystem mounted or opened exclusively by another program?



    That's what I got when I did that. How do I unmount it?
    Command
    Code:
    sudo umount /dev/sda1
    should do it, then try that first e2fsck command again.
    DISTRO: Xubuntu 12.04-64bit --- Code-tags --- Boot-Repair --- Grub2 wiki & Grub2 Basics --- RootSudo

  5. #5
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    Oct 2011
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    Re: Can't use Ubuntu

    Got the same message.

    sudo umount /dev/sda1
    umount: /dev/sda1: not mounted
    ubuntu@ubuntu:~$ sudo e2fsck /dev/sda1
    e2fsck 1.41.12 (17-May-2010)
    e2fsck: Device or resource busy while trying to open /dev/sda1
    Filesystem mounted or opened exclusively by another program?
    ubuntu@ubuntu:~$


    Here's my information on sda1:

    File System: ext4
    Size: 227.03 Gib
    Used: 14.48 GiB (6%)
    Unused: 212.54 GiB (94%)
    Flags: boot

    Path: /dev/sda1
    Status: not mounted
    Label:
    UUID: e42e0c8c-5aac-43d3-ae14-1bf1630ed6d2

    First Sector: 2048
    Last Sector: 476108799
    Total Sectors: 476106752

  6. #6
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    Jul 2005
    Location
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    Re: Can't use Ubuntu

    OK, let's see the output of command
    Code:
    sudo fdisk -l
    Maybe it is a logical partition in the same extended partition as swap,
    DISTRO: Xubuntu 12.04-64bit --- Code-tags --- Boot-Repair --- Grub2 wiki & Grub2 Basics --- RootSudo

  7. #7
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
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    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Can't use Ubuntu

    We have seen a couple of cases where the partition says it is mounted in Ubuntu even when it is not. Last one was from a crash with Samba, I think. The work around was to run fsck from a different Linux.

    #From liveCD so everything is unmounted,swap off if necessary, change example shown with partition sdb1 to your partition(s)
    #e2fsck is used to check the ext2/ext3/ext4 family of file systems. -p trys fixes where response not required
    sudo e2fsck -C0 -p -f -v /dev/sdb1
    #if errors: -y auto answers yes for fixes needing response see man e2fsck
    sudo e2fsck -f -y -v /dev/sdb1

    Try this, is sure swapoff completed:
    root@ubuntu# fuser -vam /dev/sda5
    root@ubuntu# lsof /dev/sda5
    Terminate with "kill [pid]" or "kill -9 [pid]

    If not:
    Problem running e2fsck apparently in use by the system, Use Slitaz
    http://ubuntuforums.org/showthread.php?t=1713946
    SATA will use sda1 and IDE devices use hda1 in Slitaz
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  8. #8
    Join Date
    Oct 2011
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    9

    Re: Can't use Ubuntu

    ajgreeny, here is what I get.

    ubuntu@ubuntu:~$ sudo fdisk -l

    Disk /dev/sda: 250.1 GB, 250059350016 bytes
    255 heads, 63 sectors/track, 30401 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x000256c4

    Device Boot Start End Blocks Id System
    /dev/sda1 * 1 29637 238053376 83 Linux
    /dev/sda2 29637 30402 6142977 5 Extended
    /dev/sda5 29637 30402 6142976 82 Linux swap / Solaris

  9. #9
    Join Date
    Oct 2011
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    Re: Can't use Ubuntu

    Quote Originally Posted by oldfred View Post
    We have seen a couple of cases where the partition says it is mounted in Ubuntu even when it is not. Last one was from a crash with Samba, I think. The work around was to run fsck from a different Linux.

    #From liveCD so everything is unmounted,swap off if necessary, change example shown with partition sdb1 to your partition(s)
    #e2fsck is used to check the ext2/ext3/ext4 family of file systems. -p trys fixes where response not required
    sudo e2fsck -C0 -p -f -v /dev/sdb1
    #if errors: -y auto answers yes for fixes needing response see man e2fsck
    sudo e2fsck -f -y -v /dev/sdb1

    Try this, is sure swapoff completed:
    root@ubuntu# fuser -vam /dev/sda5
    root@ubuntu# lsof /dev/sda5
    Terminate with "kill [pid]" or "kill -9 [pid]

    If not:
    Problem running e2fsck apparently in use by the system, Use Slitaz
    http://ubuntuforums.org/showthread.php?t=1713946
    SATA will use sda1 and IDE devices use hda1 in Slitaz

    I inherited this computer with this operating system already on it. I am a VERY beginner when it comes to this system. Please dumb this down for me.

  10. #10
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
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    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Can't use Ubuntu

    Instead of using a Ubuntu LIveCD, you use a Slitaz liveCD. It does work a bit differently, but you just want to run the e2fsck commands.

    Something about Ubuntu not clearing the mount and other systems like Slitaz either clearing it or ignoring it and then working. Only suggest Slitaz as it worked for others and is a small system so easy to download.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







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