Python 3.14 added pathlib.Path.copy() which refuses source==target with
OSError [Errno 22]. archinstall's sync_log_to_install_medium() calls
.copy() on install.log to itself at __exit__ time, because by then the
chroot mountpoint is already torn down and both source and target
resolve to the same /var/log/archinstall/install.log. The install
itself has already succeeded — the crash is in the log-sync cleanup.
Patch is a pre-start sed on the live ISO that replaces the offending
call with `None` (a no-op expression-statement keeping the same
indent level). Lives on furtka-webinstaller.service as ExecStartPre
so it runs before the first install attempt; idempotent, so service
restarts don't re-trigger anything. Never touches the installed
system — only the live ISO's site-packages tree.
Real fix is upstream in archinstall (guard the copy when source
and target resolve equal); this is a workaround until they ship it.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Daniel Maksymilian Syrnicki
661f51e91a