This is a misconfiguration rather than a bug. Your array was degraded
and so grub was only being installed to one of the disks, but your bios
was continuing to boot from the other disk, with the old, now broken
copy of grub.
** Changed in: grub2 (Ubuntu)
Status: Confirmed => Invalid
--
** Description changed:
After upgrading to 14.04 (daily) and rebooting, grub stops with the
message:
symbol 'grub_isprint' not found after upgrade to 14.04 (daily)
and enters rescue prompt. I was able to rescue the boot by running
"grub-install" from a live USB stick with 12.04. Ha
