On 2017-12-15 21:33, David T-G wrote:
Carlos, et al --
...and then Carlos E. R. said... % % On Friday, 2017-12-15 at 12:12 +0100, jdd@dodin.org wrote: % ... % >I still always fear to lose something, for example if I forget I hibernated % % Hibernation disables the grub menu.
Wait, what? NOOOO! That is exactly what I don't want :-(
Do you know how to change that so that I get the menu no matter which OS instance shut down or hibernated last?
There is or was a setting to disable this, hidden and discouraged, because it is very dangerous. If the second system tries to mount a filesystem that was mounted by the hibernated system previously, it will see it as dirty (not cleanly umounted, which is true, it is still mounted) and will automatically fsck it. When the first system restores it will have in memory the image of the filesystem previous to the fsck, and will write on it considering that old status that is no longer true; at this point the filesystem can become corrupt beyond repair. More: on laptops at least the BIOS menu is also disabled. The hardware and its configuration must not change between hibernation and restore. -- Cheers / Saludos, Carlos E. R. (from 42.2 x86_64 "Malachite" at Telcontar)