this post was submitted on 17 Mar 2025
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    Panik (lemmy.cafe)
    submitted 1 week ago by cm0002@lemmy.cafe to c/linuxmemes@lemmy.world
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    [–] tomkatt@lemmy.world 93 points 1 week ago* (last edited 1 week ago) (13 children)

    Important Edit

    The information below applies to emergency mode boot when grub is intact but OS isn’t booting. It doesn’t apply to grub rescue. Sorry about that folks, I screwed up here and don’t wanna misinform.

    —————-

    Protip: If you see this error, press”e” on grub boot to edit your commands and add the following to the end of the kernel line in grub:

    fsck.repair=yes

    Then boot.

    Fixes the issue like 90% of the time.

    [–] TheGreatSnacku@lemm.ee 3 points 1 week ago (1 children)

    If it's going to grub rescue then that's before it can even get to the grub menu (thus no kernel line at this point). It's usually easiest to boot to live/rescue ISO and reinstall grub. Sometimes you can manually load grub modules from lib to manually boot from the grub rescue shell to the normal grub shell, but that's more advanced.

    [–] tomkatt@lemmy.world 6 points 1 week ago* (last edited 1 week ago) (1 children)

    Not true, it’s grub rescue, appears after grub if the OS can’t boot. I’ve encountered this countless times at work over the years in customer environments.

    [–] TheGreatSnacku@lemm.ee 4 points 1 week ago* (last edited 1 week ago) (1 children)

    This is false and there's a simple way to show it.

    Remove the grub.cfg file and the system will boot to the grub prompt (not grub rescue). You can manually boot past this by inputting the Linux and initramfs lines.

    Then test again but leave grub.cfg intact. Remove an important module like normal.mod and test booting - system will land at grub rescue instead of the normal grub prompt.

    Once you test it would be good if you edit your posts so that you aren't sharing bad information with others

    [–] tomkatt@lemmy.world 3 points 1 week ago (1 children)

    Well shit. You’re right, I’m mixing up grub rescue and emergency mode. Yeah, you would need a USB rescue disk to fix this most likely.

    My bad, I’ll update the original comment to avoid confusion.

    [–] TheGreatSnacku@lemm.ee 2 points 6 days ago

    All good! Thanks for updating.

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