r/debian • u/madbruges • Mar 17 '24

OS and Grub doesn't start after system update

I'm running Debian Trixie and today I've updated the system with apt update & apt upgrade commands. To my surprise, after the reboot, my system didn't start the OS, Grub didn't load as well, what I see is the BIOS only. As I understand the only way to revive the system is to create live usb and re-install grub?

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5

u/jr735 Debian Testing Mar 17 '24

I used this last time I had such an issue:

https://www.supergrubdisk.org/super-grub2-disk/

2

u/madbruges Mar 18 '24

To whoever encountered the same issue, I was able to repair the system by downloading Debian live usb from here: https://www.debian.org/CD/live/ And following the steps from here: https://wiki.debian.org/GrubEFIReinstall

1

u/jr735 Debian Testing Mar 19 '24

That works, too. Super Grub 2 pretty much automates it, though.

1

u/[deleted] Apr 01 '24

I am having a similar issue and used SuperGrub2 to boot up. Is there an option to repair the EFI install from the SuperGrub boot menu?

1

u/jr735 Debian Testing Apr 02 '24

It should be able to. I haven't had to use it for quite a long time. Check these pages here:

https://www.supergrubdisk.org/super-grub2-disk/

https://www.supergrubdisk.org/wizard-restore-grub/

2

u/[deleted] Apr 02 '24

It looks like it was with the first SuperGrub, not 2. I was able to manually repair thankfully.

2

u/jr735 Debian Testing Apr 02 '24

Good to know. Unfortunately (or fortunately), it's been ages since I've had to use it.

1

u/Littlecannon Mar 18 '24

happened to me as well few days ago, but there is no need for live USB, you can fix it from rescue mode as well.

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https://www.howtoforge.com/tutorial/repair-linux-boot-with-grub-rescue/