Ubuntu
grub2 package

  1. Bug #439784
  2. Comment #2

Comment 2 for bug 439784

Revision history for this message
Antti Leppik (antti-parksepa) wrote : Re: invalid: environment block

I had the same problem. Deleting grubenv had no efect.
Solved it temporarily using following commands in recovery shell
# cd /boot/grub
# rm grubenv
# grub-editenv grubenv create
# grub-editenv grubenv set default=0
# grub-editenv grubenv list
default=0