> Boot faults to an (initrd) prompt with a complaint that the /usr LV, > correctly identified by its UUID, does not exist. It does, but is not > activated. In fact, lvscan shows that only the root and swap LVs > are active, and the others are not.
Why does the initrd want to check activation of something else than root and swap (root is ... well because we want to mount it, and swap is to check for a hibernation image, AFAIK)? Oh wait, I guess with the new usr/bin change /usr needs to be "in the root filesystem" now or at least mounted just like the root, so apparently some part of the initramfs hasn't been adjusted to this new need. But an easy fix might be to merge your /usr and / partitions. Stefan