Salvages #25872 by @konsisumer against current main.
NAS users (UGOS, Synology, unRAID) expect the LinuxServer.io
PUID/PGID convention and bind-mount /opt/data from a host directory
owned by their own UID. Without this alias those vars are silently
ignored and the s6-setuidgid drop to UID 10000 leaves the runtime
unable to read the volume. HERMES_UID/HERMES_GID still take
precedence when both are set.
The original PR targeted docker/entrypoint.sh, which is now a 27-line
deprecation shim under s6-overlay (the May 2026 rework moved all
bootstrap logic to docker/stage2-hook.sh, installed as
/etc/cont-init.d/01-hermes-setup). Re-applied the same 2-line
alias resolution at the equivalent spot in stage2-hook.sh just
before the existing UID/GID remap block. Test was retargeted at
docker/stage2-hook.sh; docs hunk adapted to current main's wording
("stage2 hook" + s6-setuidgid, not the obsolete "entrypoint drops
via gosu") with the NAS bind-mount example preserved verbatim.
Test-first regression verification: reverted just docker/stage2-hook.sh
to origin/main and re-ran the new tests. Result:
FAILED test_stage2_hook_resolves_puid_pgid_aliases
FAILED test_puid_pgid_populate_hermes_uid_gid
AssertionError: assert ':' == '1000:10'
That's the exact bug shape — PUID=1000 PGID=10 silently ignored,
HERMES_UID/HERMES_GID stay empty. With the salvage applied, all 4
tests pass.
Closes#25872
Co-authored-by: konsisumer <11262660+konsisumer@users.noreply.github.com>