root@rescue ~ # systemctl cat gnu-store.mount
# /etc/systemd/system/gnu-store.mount
[Unit]
Description=Read-only /gnu/store for GNU Guix
DefaultDependencies=no
ConditionPathExists=/gnu/store

[Install]
WantedBy=multi-user.target

[Mount]
What=/gnu/store
Where=/mnt/tmp/gnu/store
Type=none
Options=bind,ro
root@rescue ~ # systemctl status gnu-store.mount
● gnu-store.mount - Read-only /gnu/store for GNU Guix
     Loaded: loaded (/etc/systemd/system/gnu-store.mount; enabled; preset: enabled)
     Active: active (mounted) (Result: exit-code) since Thu 2026-05-07 16:21:12 CEST; 3min 38s ago
      Where: /mnt/tmp/gnu/store
       What: /dev/sda1
      Tasks: 0 (limit: 4497)
     Memory: 0B
        CPU: 36ms
     CGroup: /system.slice/gnu-store.mount

May 07 16:21:08 rescue systemd[1]: gnu-store.mount: Mount process exited, code=exited, status=32/n/a
May 07 16:21:08 rescue systemd[1]: Failed unmounting gnu-store.mount - Read-only /gnu/store for GNU Guix.
May 07 16:21:08 rescue systemd[1]: Unmounting gnu-store.mount - Read-only /gnu/store for GNU Guix...
May 07 16:21:08 rescue umount[14579]: umount: /mnt/tmp/gnu/store: not mounted.
May 07 16:21:08 rescue systemd[1]: gnu-store.mount: Mount process exited, code=exited, status=32/n/a
May 07 16:21:08 rescue systemd[1]: Failed unmounting gnu-store.mount - Read-only /gnu/store for GNU Guix.
May 07 16:21:12 rescue systemd[1]: Unmounting gnu-store.mount - Read-only /gnu/store for GNU Guix...
May 07 16:21:12 rescue umount[14590]: umount: /mnt/tmp/gnu/store: not mounted.
May 07 16:21:12 rescue systemd[1]: gnu-store.mount: Mount process exited, code=exited, status=32/n/a
May 07 16:21:12 rescue systemd[1]: Failed unmounting gnu-store.mount - Read-only /gnu/store for GNU Guix.
root@rescue ~ # systemctl status guix-daemon
● guix-daemon.service - Build daemon for GNU Guix
     Loaded: loaded (/etc/systemd/system/guix-daemon.service; enabled; preset: enabled)
     Active: active (running) since Thu 2026-05-07 16:21:08 CEST; 3min 57s ago
    Process: 14578 ExecStartPre=systemctl stop gnu-store.mount (code=exited, status=1/FAILURE)
    Process: 14581 ExecStartPost=systemctl start gnu-store.mount --no-block (code=exited, status=0/SUCCESS)
   Main PID: 14580 (guix-daemon)
      Tasks: 1 (limit: 8192)
     Memory: 448.0K
        CPU: 162ms
     CGroup: /system.slice/guix-daemon.service
             └─14580 /var/guix/profiles/per-user/root/current-guix/bin/guix-daemon --discover=yes "--substitute-urls=https://bordeaux.guix.gnu.org https://ci.guix.gnu.org"

May 07 16:21:08 rescue systemd[1]: Starting guix-daemon.service - Build daemon for GNU Guix...
May 07 16:21:08 rescue systemctl[14578]: Job failed. See "journalctl -xe" for details.
May 07 16:21:08 rescue systemd[1]: Started guix-daemon.service - Build daemon for GNU Guix.
May 07 16:21:08 rescue guix-daemon[14582]: guix discover: warning: Avahi daemon is not running, cannot auto-discover substitutes servers.