Dockerfile.arm64: after pre-downloading linux-aarch64, build a local
pacman repo from the cached package using repo-add so mkarchiso can
install the kernel from file:// without touching the [alarm] mirror.
entrypoint-arm64.sh: put [alarm-local] first in the profile pacman.conf
so pacstrap always resolves linux-aarch64 from the baked-in repo.
Also add a symlink fallback in customize_airootfs.sh: ALARM aarch64
may install the kernel as /boot/Image instead of /boot/vmlinuz-linux-aarch64;
the symlink ensures archiso's vmlinuz-* glob and systemd-boot both find it.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
nmemmertandClaude Sonnet 4.6
5160a30d72