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Thread: unable to boot into OS

  1. #1
    Join Date
    Oct 2008
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    Ottawa Canada
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    Ubuntu 12.10 Quantal Quetzal

    unable to boot into OS

    I am using Australis MATE which is based on Ubuntu 12.04. Never had any problems booting into it until now. This is my GRUB entry:

    title Australis LTS (Mate Edition) (sda6)
    uuid 00965684-5c30-4e06-8e41-f8e47ccee349
    kernel /vmlinuz root=/dev/sda6 ro

    What should I do? Is there anything I can post back that may help? I'd like to capture the notices that appear on startup but I am not sure if there is a way to do this or maybe there is a log file or something similar?

    Thanks!!!
    Randy McElligott
    www.mcran.com

    For the best in Jazz, In Transition every Sunday from noon-2pm EST www.chuo.fm

  2. #2
    Join Date
    Feb 2008
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    In my skin.
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    Hidden!
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    Xubuntu

    Re: unable to boot into OS

    Have you tried:

    Code:
    # title Australis LTS (Mate Edition) (sda6)
    uuid 00965684-5c30-4e06-8e41-f8e47ccee349
    kernel /vmlinuz root=/dev/sda6 ro
    It would help if you could be more specific. What is actually happening from the moment you boot the machine to when it crashes and how is it crashing?

  3. #3
    Join Date
    Jun 2009
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    Chicago Suburbs
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    Ubuntu 14.04 Trusty Tahr

    Re: unable to boot into OS

    That is not a grub2 type entry. If based on Ubuntu 12.04, I would think it would use grub2? Or does it use another boot loader as it is not a full install?

    Post the link to the BootInfo report that this creates. Is part of Boot-Repair:
    https://help.ubuntu.com/community/Boot-Info
    Boot Repair -Also handles LVM, GPT, separate /boot and UEFI dual boot.:
    https://help.ubuntu.com/community/Boot-Repair
    You can repair many boot issues with this or 'Create BootInfo' report (Other Options) & post the link it creates, so we can see your exact configuration and diagnose advanced problems.
    LighterWeight (Lubuntu based) Boot-RepairCD
    http://sourceforge.net/projects/boot-repair-cd/files/
    Install in Ubuntu liveCD or USB or Full RepairCD with Boot-Repair (for newer computers)
    https://help.ubuntu.com/community/LinuxSecureRemix
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  4. #4
    Join Date
    Oct 2008
    Location
    Ottawa Canada
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    1,207
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: unable to boot into OS

    I use Grub4DOS that is part of Puppy Linux. The other distros work fine (WattOS, Bodhi Linux). I had the same issue with Manjaro and all I had to do was tweak this part of it:

    kernel /vmlinuz root=/dev/sda6 ro

    The error I get on startup is a KP error
    Randy McElligott
    www.mcran.com

    For the best in Jazz, In Transition every Sunday from noon-2pm EST www.chuo.fm

  5. #5
    Join Date
    Oct 2008
    Location
    Ottawa Canada
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    1,207
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: unable to boot into OS

    This is exactly what I am seeing on startup:

    Please append a correct “root=” boot option: here are the available partitions:

    kernel panic - not syncing: VFS: unable to mount root fs on unknown -block (0,0)

    Pid: 1, comm: swapper/0 Not tainted 3.5.0 -30-generic #51 precise 1-ubuntu

    Call trace:
    Randy McElligott
    www.mcran.com

    For the best in Jazz, In Transition every Sunday from noon-2pm EST www.chuo.fm

  6. #6
    Join Date
    Oct 2008
    Location
    Ottawa Canada
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    Ubuntu 12.10 Quantal Quetzal

    Re: unable to boot into OS

    I have been using Grub4DOS because it is pretty straight forward. If there is another way to create a Grub2 menu that is pretty straight forward, please let me know. I would really appreciate it!!


    Thanks!!!
    Randy McElligott
    www.mcran.com

    For the best in Jazz, In Transition every Sunday from noon-2pm EST www.chuo.fm

  7. #7
    Join Date
    Oct 2008
    Location
    Ottawa Canada
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    1,207
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: unable to boot into OS

    Problem solved!


    I installed and reconfigured my grub menu using Grub- customizer.

    I would still like to know if there are alternate ways to set up Grub. Thanks!!
    Randy McElligott
    www.mcran.com

    For the best in Jazz, In Transition every Sunday from noon-2pm EST www.chuo.fm

  8. #8
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
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    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: unable to boot into OS

    I use grub2, but it has a bit of a learning curve as it has a lot of new capabilities that then make it more complex.

    How to: Create a Customized GRUB2 Screen that is Maintenance Free.- Cavsfan
    https://help.ubuntu.com/community/Ma...tomGrub2Screen
    http://ubuntuforums.org/showthread.php?t=2076205
    For info on UEFI boot install & repair - Updated Mar 2015:
    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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