Fresh installs on real hardware failed pacstrap with "keyring is not
writable" and "required key missing from keyring". The offline repo's
SigLevel = Optional TrustAll was not the bypass it appeared to be:
Optional verifies whenever a .sig file exists — and every package in the
offline mirror ships one — while pacstrap's pacman -r relocates the
install root but not GpgDir, so verification runs against the LIVE
keyring. That silently made every install depend on archiso's boot-time
pacman-init.service having finished: fast in QEMU, minutes-or-never on
real hardware, where pacstrap then raced it and lost.
The mirror ships inside the ISO, whose integrity is already covered by
the airootfs sha512 and the ISO signature, so pacman-level signature
verification adds nothing. Set SigLevel = Never so installs never touch
the live keyring. The target still gets its own keyring via pacstrap -K
plus the archlinux-keyring/omarchy-keyring package hooks.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
