{{tag>troubleshooting ubuntu linux grub}}

====== Error: invalid environment block. Press any key to continue... ======
<del>Press E at the GRUB menu. Find the line saying save_env recordfail and delete all</del> **<<- this was not needed**

Only these steps:

  sudo -i

Then, run each command, one-by-one.

  cd /boot/grub
  rm grubenv
  grub-editenv grubenv create
  grub-editenv grubenv set default=0
  grub-editenv grubenv list
  update-grub

Nor anything after these commands. Simply reboot and it should be fixed.

====== Tested on ======
  * Ubuntu 20.04.2 LTS

====== See also ======
  * [[wiki:grub_errors|Grub errors]]
  * [[wiki:reinstall_grub_mdraid1_array|Reinstall grub on mdraid1 array]]

====== References ======
  * https://askubuntu.com/questions/191852/error-invalid-environment-block-press-any-key-to-continue/191865#191865