Hi Geoff, On Fri, Jul 31, 2020 at 11:54:20AM +0100, Geoff Gibbs wrote: >apt update >apt full-upgrade > >grub upgrades > >from 2.02+dfsg1-20 >to 2.02+dfsg1-20+deb10u1 > >no errors were spotted. > >When rebooted :- > >symbol grub_calloc not found >Entering rescue mode >grub rescue> > > >I had to boot off a memory stick and then :- > >sudo -i >mount /dev/sda5 /mnt >grub-install --boot-directory=/mnt /dev/sda >reboot > >This worked and the system now boots. > >/boot is the only ext type file system, the others are all handled by LVM
I'm guessing - do you have multiple disks on your system? If so, try "grub-install <disk>" on each of the bootable disks and that should fix your problem. I think we need a proper fix for this in the longer term, but that's not going to happen overnight. -- Steve McIntyre, Cambridge, UK. st...@einval.com You lock the door And throw away the key There's someone in my head but it's not me