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Thread: Issues on Boot Up

  1. #1
    Join Date
    Nov 2019
    Beans
    1

    Question Issues on Boot Up

    Hello,

    I am relatively new to Ubuntu. I am trying to troubleshoot where my boot up process is going wrong. I built a new PC with some powerful components and I want it to be a powerful data processing Lubuntu box. Installed everything and the OS worked well for a day. Then I ran into issues on bootup. I see the following things happen:
    1. Motherboard BIOS/UEFI appears to work fine.
    2. Grub 2.02 OS Selector pops up. Shows 4 versions of Ubuntu. Ubuntu 18.04.0.0.32-generic, Ubuntu 18.04.0.0.23-generic, and a recovery version for both.
    3. When I select Ubuntu 18.04.0.0.32, I see a list of boot up items flash by the screen, then it gets hung up and never enters the Graphical Interface phase where I can log in.
    4. Errors I have seen include:
    Couldn't get size: ...
    MODSIGN: Couldn't get UEFI db list
    Couldn't get size: ...
    5. I implement the changes in this post, and I get a set of new errors that scroll to fast to read.
    https://ubuntuforums.org/showthread.php?t=2407705
    6. Everything ultimately gets hung up with 'AHCI unavailable' or something to that extent.

    Let me know what else you need.

    Thanks,

  2. #2
    Join Date
    Apr 2008
    Location
    Norwich CT
    Beans
    2,582
    Distro
    Ubuntu Mate

    Re: Issues on Boot Up

    Basically, the advice says to reinstall with Legacy mode. I have, personally, never had a working install using UEFI; Grub fails to install every time.

    It's never failed in Legacy mode, FWIW.

    I drink my Ubuntu black, no sugar.
    Ubuntu user 28819

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