Loads airootfs.sfs into RAM at boot so the installer reads from memory
instead of a possibly-flaky USB — fixes SquashFS read errors during
unpackfs. Kept as a separate menu entry (not default) since it needs a few
GB of RAM.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The profile declared syslinux + systemd-boot bootmodes but lacked the
required config directories, so mkarchiso would fail. Added from the
official releng profile, rebranded to Bread OS; %PLACEHOLDER% tokens are
substituted by mkarchiso at build time.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>