symbol 'grub_calloc' not found grub boot error solution / fix

I've encountered this after upgrading some Debian/Ubuntu/Mint based systems for no explicable reason, although there are some bug trackers on Ubuntu that document this: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1889509

The short end of the solution is that you need to properly reinstall grub.

 

1.) Boot from a LiveCD

2.) Mount your root / filesystem and don't forget to mount the boot partition in the root's /boot (if you have a separate partition).

3.) chroot into the install

4.) Reinstall grub

update-grub

grub-install /dev/sdx #(where X is one of your boot drives).

 

After that you should be good.


Tags:

grub_calloc, grub, fixi, ve, encountered, upgrading, debian, ubuntu, mint, explicable, trackers, https, launchpad, reinstall, livecd, mount, filesystem, partition, chroot, install, update, dev, sdx,

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