On Wed, Jan 12, 2022, at 4:04 AM, Panu Matilainen wrote: > > Here seems to be another SMALL undocumented dependency of this change: > completing the /usrmove thing to cover the whole world including /opt, > /etc, /var, and presumably /boot as well because packages put stuff in it.
There are very few packages that put things in /boot. For example, fwupd used to be in that set, but moved into a "self updater" model where the binary goes in /usr, and then it copies itself into the ESP instead of having yum/rpm do it. Now, rpm-ostree also does this with /boot: https://github.com/coreos/rpm-ostree/blob/210bf148342a9545c9841ae6d8403354ce49b672/src/libpriv/rpmostree-util.cxx#L134 And then we have a sister project https://github.com/coreos/bootupd/ that is only shipped in FCOS today (but would make sense to use on everything that uses rpm-ostree) which is scoped explicitly to only handle stuff on the ESP (and eventually, stuff like grub on the MBR and other architectures too). Correct handling of /boot is obviously essential for transactional updates; ostree is entirely designed around a "strong binding" of (kernel, userspace) pairs. Handling kernels in /boot for "client side snapshots" is something most projects in this space do out of band, as far as I've seen. Again, it's really that 90% of the data in the rpmdb is for /usr. We recently changed the kernel RPM to stick the kernel binary in /usr/lib/modules/$kver and only *copy* it from there to strengthen this model. And this move is pushing things farther along in that direction. _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
