coreos
Use DPS UUIDs for root and boot partitions
Use the Discoverable Partition Specification UUID for root and boot partitions
We were already using DPS UUID for both partitions, but they were UUIDs for generic Linux Data Parition
This lets us use systemd-systemd-gpt-auto-generator which is a good
choice for LUKS decryption without UKI addons for composefs backend
Use architecture specific DPS UUID for root partition, and use XBOOTLDR UUID for boot partition
Related: https://github.com/coreos/fedora-coreos-tracker/issues/2060
Closes: https://github.com/coreos/fedora-coreos-tracker/issues/1038
This lets us use
systemd-systemd-gpt-auto-generator
Unfortunately we don't include that right now. It got re-introduced recently and broke stuff.
If we were to make this change I think we'd need to make some more careful consideration. Would we want to do it everywhere immediately? Or would we want to phase this in? Right now changes here land downstream in rhel-9.6 pretty much immediately.
cc @travier
It got re-introduced recently and https://github.com/coreos/fedora-coreos-config/pull/3846#issuecomment-3443736766.
iiuc, it broke stuff as gpt-auto-generator searches for partitions via the UUIDs specified in the DPS. kola test locally seemed to pass
The rhcos test does seem to be failing with a timeout.
iiuc, it broke stuff as
gpt-auto-generatorsearches for partitions via the UUIDs specified in the DPS
I see. You're saying this PR fixes that?
I see. You're saying this PR fixes that?
The kola test mentioned https://github.com/coreos/fedora-coreos-config/pull/3846#issuecomment-3443736766 do pass with this patch. This PR might have some cascading effect elsewhere, but from what I saw it shouldn't as this PR only updates partition UUIDs while in our scripts we use the fs UUIDs
From https://github.com/coreos/fedora-coreos-tracker/issues/1038, first step is to update the UUIDs only and make sure that does not break anything.
Work to use systemd's auto GPT generator tracked in https://github.com/coreos/fedora-coreos-tracker/issues/2077.
We should be able to merge that once we've branched RHEL 9.6.
