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Thread: My computer does not boot up

  1. #1
    Join Date
    Nov 2013
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    My computer does not boot up

    Hi, since a couple of day, my computer with Ubuntu 18.04 Is not able to boot,maybe now my fstab Is messed up, on the root Shell with the command sudo findmnt --verify --verbose,I get this message: [E] unreachable on boot required source UUID=759fe52e-... I got the UUID with blkid.
    My fstab Is:
    # ...
    UUID=759fe52e-.... / ext4 default 0 1

    Thanks in advance
    Last edited by damicogiuseppe77-2; September 22nd, 2020 at 11:39 PM. Reason: More tags

  2. #2
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    Re: My computer does not boot up

    Be sure that 'sudo blkid' output is matching with /etc/fstab

  3. #3
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    Re: My computer does not boot up

    Perhaps closed abnormally and needs fsck?
    To see all the ext4 partitions
    sudo parted -l
    #From liveDVD/Flash 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 tries fixes where response not required, Run both commands as they have different parameters.
    sudo e2fsck -C0 -p -f -v /dev/sdb1
    # -y auto answers yes for fixes needing response, also see man e2fsck
    sudo e2fsck -f -y -v /dev/sdb1

    If not fsck, then to confirm boot configuration is otherwise ok:
    Lets see details, use ppa version with your live installer (2nd option) or any working install, not Boot-Repair ISO:
    Please copy & paste the pastebin link to the Boot-info summary report ( do not post report), do not run the auto fix till reviewed.
    https://help.ubuntu.com/community/Boot-Repair
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  4. #4
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    Re: My computer does not boot up

    Thanks: after boot-repair, my computer still Ford not boot up,this Is the pastebin: http://paste.ubuntu.com/p/Jy4vgz95VD/

  5. #5
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    Re: My computer does not boot up

    Ignore all errors on sdb, your flash drive. As a hybrid DVD/flash drive it does not have standard partitions, so shows errors.

    It says grub correctly reinstalled.
    You have old BIOS/MBR configuration.

    Since only one install, if you hold shift key from BIOS screen, are you able to get to grub menu?
    And then try to boot recovery mode?

    What brand/model system?
    What video card/chip?
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  6. #6
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    Nov 2013
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    Re: My computer does not boot up

    It Is a i7 Sony vaio,
    I can get ti grub menù and the root shell
    NVIDIA GeForce GT 520M

  7. #7
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    Re: My computer does not boot up

    Then in grub menu press e for edit and add nomodeset to linux line. I normally replace quiet splash, so then you also see boot process.

    How to set NOMODESET and other kernel boot options in grub2 - both BIOS liveCD & grub first boot ( also UEFI with grub)
    How to add boot parameters, grub menu after install (also grub when UEFI)
    https://wiki.ubuntu.com/Kernel/KernelBootParameters &
    https://help.ubuntu.com/community/Grub2
    http://ubuntuforums.org/showthread.php?t=1613132
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  8. #8
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    Nov 2013
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    Re: My computer does not boot up

    It does not work

  9. #9
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    Re: My computer does not boot up

    Do you get grub menu?
    Can you boot recovery mode?
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  10. #10
    Join Date
    Nov 2013
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    Re: My computer does not boot up

    Yes i can

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