Comment 0 for bug 1836934

I dual boot several Ubuntu versions and have edited /etc/default/grub to show them on boot (and default to the last used).

When eoan installs grub I no longer see the grub menu listing them during boot.

Holding the shift key doesn't help.

Although not displayed the menu seems to be active as I can select another install by using the cursor keys and enter.

Reinstalling and updating grub from 18.04 restores normality - once I've found 18.04 by guessing where it is on the (hidden) boot menu.