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Check NixOS configurations / eval-hosts (pull_request) Successful in 10m45s
The systemd-based initrd (default here, since this host has a ZFS root) locks the root account by default, so sulogin refuses a shell if something in the initrd fails and it drops to emergency mode -- confirmed live: it just loops re-entering the target instead of prompting, making an initrd-level ZFS import failure impossible to diagnose from the console. Only affects the pre-switch-root initrd shell, not the installed system's own login.