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Commit Graph

5 Commits

Author SHA1 Message Date
Adrian Vovk
631803cccd
sysupdate: Repair incomplete versions in-place
A previous commit made sysupdate recognize installed versions where some
transfers are missing. This commit teaches sysupdate how to correctly
repair these incomplete versions.

Previously, if you had a incomplete installation of the OS booted, and
ran sysupdate in an attempt to repair it, sysupdate would make things
worse by creating copies of the currently-booted partitions in the
inactive slots. Then at boot you have two identical partitions, with
identical labels an UUIDs, and end up with a mess.

With this commit, sysupdate is able to recognize situations where it can
simply download the missing transfers and leave the rest of the system
undistrubed.

Partial fix for https://github.com/systemd/systemd/issues/33339
2024-08-22 16:00:46 -04:00
Adrian Vovk
57ada07e7a
sysupdate: Track incompletely-installed versions
When enumerating what versions exist for a given target, sysupdate would
completely throw out any version that's incomplete (where some of the
transfers in the target have that version installed or available, and
other transfers do not).

If we're trying to find what versions we can offer for download, this is
great behavior. If the server side is advertising a partial update to
download, we shouldn't present it to the user.

On the other hand, if we're enumerating what versions we have currently
installed, this is a bad behavior. It makes sysupdate fragile. For
example, if a sysext introduces a new .conf file into
/usr/lib/sysupdate.d, suddenly the currently-installed OS stops being a
version that we've enumerated. Since it's not enumerated, it's not
protected, and so sysupdate will wipe the booted OS.

So if we're looking for installed versions, we now loosen the
restrictions and enumerate incomplete installations.

Partial fix for https://github.com/systemd/systemd/issues/33339
2024-08-22 16:00:45 -04:00
Adrian Vovk
d470a6c227
sysupdate: man: Cleanup sections about flags 2024-08-21 22:40:18 -04:00
Adrian Vovk
e0081f18a0
sysupdated: Fixup redundant constant name
SD_ stands for systemd, so SD_SYSTEMD_* is SYSTEMD_SYSTEMD_*
2024-08-21 22:33:16 -04:00
Adrian Vovk
bf2c741fd7
sysupdate: Implement systemd-sysupdated dbus service
Co-authored-by: Tom Coldrick <thomas.coldrick@codethink.co.uk>
Co-authored-by: Abderrahim Kitouni <abderrahim.kitouni@codethink.co.uk>
2024-08-21 09:31:41 +01:00