What I expected is that those menu entries would work as said in that menu line.
However the situation completely changed, because the Grub menu has been "rolled back" by an update to a more classic view without the history menu entry and only one classic recovery mode per Linux version in the advanced menu options. Booting from ZFS: The Recovery Mode in the Advanced Options still hangs after loading the ramdisk. Booting from ext4: The Recovery Mode in the Advanced Options hangs with a blank screen. The Memory Test does not start, after one beep the screen blanks and the system is dead. All other menu entries work as expected, so I can load Ubuntu with linux 5.2 or 5.3 versions. I liked the History menu Entry, so you could boot the system once or definitively from a snapshot. That was nice to have, but not essential, since on another PC I rolled back manually from 19.10 to 19.04 after I detected that Virtualbox 6.0.12 did not support Linux 5.3 yet. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1843652 Title: The bootmenu for zfs based Ubuntu does partly not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1843652/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs