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Thread: Unable to select ubuntu in dual boot

  1. #1
    Join Date
    Apr 2015
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    London & Brussels
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    Ubuntu 22.04 Jammy Jellyfish

    Unable to select ubuntu in dual boot

    Hey all,

    So, I had a screen replacement done by PCSpecialist. They replaced the screen but seemed to have messed up my system. I had a dual boot into Ubuntu 22.04 and Windows 11. Now even after repairing with the recommended settings using the live cd and boot repair my laptop boots into Windows immediately.

    I'm completely at a loss. I have the paste from the boot repair here - https://paste.ubuntu.com/p/6mppnMSffV/
    I'd be grateful if someone can help me get my dual boot back.

    Thank you,
    Last edited by caterhamfan; August 6th, 2023 at 07:57 AM.

  2. #2
    Join Date
    Jun 2009
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    SW Forida
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    Kubuntu

    Re: Unable to select ubuntu in dual boot

    Both Windows & Ubuntu/grub on major updates will reset UEFI to have themselves as first in boot order.
    You then can reset that, most systems work with efibootmgr (except HP). Or you boot into UEFI settings (not menu) and change boot order in boot settings menu.

    Also both Windows & Ubuntu may update UEFI, which often resets many settings to defaults. that may turn UEFI Secure Boot back on, and change drives back to RAID, if you had to change to AHCI. You need to review settings, if those kinds of issues.

    You have NVMe drive, but UEFI boot thru an ESP on sda.

    Check current order & hex number of each entry:
    sudo efibootmgr -v
    Change boot order with efibootmgr, some require all 4 hex char others 1 is ok.
    sudo efibootmgr -o 0,1,2
    see also
    man efibootmgr
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  3. #3
    Join Date
    Oct 2017
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    Ubuntu

    Re: Unable to select ubuntu in dual boot

    Quote Originally Posted by caterhamfan View Post
    Hey all,

    So, I had a screen replacement done by PCSpecialist. They replaced the screen but seemed to have messed up my system. I had a dual boot into Ubuntu 22.04 and Windows 11. Now even after repairing with the recommended settings using the live cd and boot repair my laptop boots into Windows immediately.

    I'm completely at a loss. I have the paste from the boot repair here - https://paste.ubuntu.com/p/6mppnMSffV/
    I'd be grateful if someone can help me get my dual boot back.

    Thank you,
    I prefer to use boot loader for this. There are a lot of boot loader you can use like, BURG, Syslinux, rEFInd, Grub2, Clover EFI Bootloader, systemd-boot (Gummiboot) In my case, I have used GNU GRUB it works perfect for me. Regards and cheers.
    Last edited by mIk3_08; August 5th, 2023 at 01:55 PM.
    corn ubuntuforums community.
    Open Source platform where the real world of human is here. Click here for Solve thread

  4. #4
    Join Date
    Oct 2017
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    Ubuntu

    Re: Unable to select ubuntu in dual boot

    Redundant Post due to some interruption Please ignore or admin please Delete
    Last edited by mIk3_08; August 5th, 2023 at 01:57 PM.
    corn ubuntuforums community.
    Open Source platform where the real world of human is here. Click here for Solve thread

  5. #5
    Join Date
    Apr 2015
    Location
    London & Brussels
    Beans
    36
    Distro
    Ubuntu 22.04 Jammy Jellyfish

    Re: Unable to select ubuntu in dual boot

    Thank you everyone.
    So, it turned out to be in the boot order. Something I didn't see.
    Thankful for your help

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