Ubuntu
grub2 package

  1. Bug #439784
  2. Comment #51

Comment 51 for bug 439784

Revision history for this message
Bartosz Kosiorek (gang65) wrote : Re: invalid: environment block

I have the same error after upgrade Grub to GRUB2:
"Error: Invalid environment block"

I resolved this bug in following way:
cd /boot/grub
sudo cp grubenv grubenv_bad
sudo grub-editenv grubenv create
sudo grub-editenv grubenv set default=0
sudo reboot

Now it works perfectly !