On Thu 09 Dec 2021 at 08:28:37 (-0800), Peter Ehlert wrote: > the full error message at the end of update-grub: > > Warning: os-prober will not be executed to detect other bootable partitions. > Systems on them will not be added to the GRUB boot configuration. > Check GRUB_DISABLE_OS_PROBER documentation entry. > > Question: why would this desirable? > it's totally new to me.
AIUI a potential security risk. I don't know whether there are plans to mitigate whatever the risk is. I imagine there may be someone crafting a paragraph for the next Release Notes. > Back story: > I just upgraded a Bullseye install to Sid. > this is a multi-boot machine, my daily driver is Bullseye. > after reboot my GRUB had only one entry > > I was able to get it back (thanks to Google) > edit /etc/default/grub > add GRUB_DISABLE_OS_PROBER=false > > saved then ran grub-install /dev/sd(foo) && update-grub Cheers, David.
