
leapp is looking for errors in /etc/default/grub and fixes it during upgrade. It does not recognize entries starting other than "GRUB", as tripleo sets the entry starting with TRIPLEO_ instead of GRUB, append the entry with GRUB_ so that leapp upgrades correctly. Closes-Bug: #1890080 Change-Id: I9238cd35a1114b1649a38ab4f24225865bcecf19