https://bugs.kde.org/show_bug.cgi?id=516861

--- Comment #4 from [email protected] ---
Update after further testing

I continued testing the KDE Linux update mechanism and was able to observe a
consistent pattern.

Environment:

KDE Linux Alpha (immutable, erofs based)

Updates via Plasma Discover → kde-linux-sysupdated

Running inside KVM

Observed behaviour across multiple update cycles:

The first update attempt in Discover frequently aborts without showing any
error in the GUI.

In these cases the journal usually shows only metadata requests (SHA256SUMS,
updatesize) and no actual .erofs download.

kde-linux-sysupdated then remains idle and eventually exits cleanly after its
timeout:

servers are shutting down
Server exiting

Starting the update again immediately afterwards triggers the actual payload
download and the update completes successfully.

Example successful run:

Requested file: ...kde-linux_202603031701_root-x86-64.erofs
Plan with holes: 694 segments for 92753 chunks
Local 6906 MiB; 347 segments | Remote 52 MiB; 347 segments
GET "...root-x86-64.erofs" 200 | 2m49s

After reboot the new system image becomes active:

/usr -> /sysroot/system/kde-linux_202603031701.erofs

Conclusion:

The backend (kde-linux-sysupdated) appears to function correctly.
The silent abort seems to occur when Discover stops the request flow before the
payload download begins. Retrying the update immediately works reliably.

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