Lennart Poettering
5d3243bd46
So far the gpt-auto symlinks would point to:
1. the disk the ESP/XBOOTLDR is located on
2. or to a loopback device whose filename field is set to "rootdisk"
or "rootdisk.raw"
This makes sense in the initrd. But once we transition to the host this
is quite confusing, since the symlinks might point to a different place
than what we actually ended up transitioning too: the actual backing
device of the root file system might be different from what gpt-auto
found.
Let's clean this up: let's avoid any ambiguities here: let's extend the
rules above with one more rule:
3. if we left the initrd, we'll make gpt-auto point to the selected
root file system, if it otherwise would have been a candidate.
Or in other words, the ID_PART_GPT_AUTO_ROOT_DISK=1 udev property now
always makes sense: in the initrd it points to the future root disk, and
on the host to the actual root disk.
Fixes: #34319
System and Service Manager
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