Hello, On Wed, May 22, 2024 at 05:03:34PM -0400, Stefan Monnier wrote: > Hmm... I've been using a "plain old partition" for /boot (with > everything else in LVM) for "ever", originally because the boot loader > was not able to read LVM, and later out of habit. I was thinking of > finally moving /boot into an LV to make things simpler, but I see that > it'd still be playing with fire
grub supports, for a long time: - / on LVM, with /boot within that filesystem - /boot on LVM, separately (it also worked with LILO, because LILO would record the exact address where the kernel & initrd was, regardless of abstractions layers :->) Recently, I have been playing with RAID-on-LVM (I was mostly using LVM on md before, which worked with grub), and it works too. Where grub fails, is if you have /boot on the same LVM volume group where any of the LVs "before him in order" have: - dm-integrity - specific metadata So yes, any advanced setup might break grub, and so the easiest is to have /boot on its separate partition again for the time being. Which makes two partitions of you also have an UEFI. > (AFAICT booting off of LVM was still not > supported by U-Boot either last time I checked). ???? No idea about that one, sorry.
