| [Unit] |
| Description=Overlay filesystem over /etc |
| DefaultDependencies=no |
| Conflicts=umount.target |
| Before=local-fs.target umount.target systemd-networkd.service |
| After=swap.target \x2eov.mount |
| |
| [Service] |
| Type=oneshot |
| ExecStart=/bin/mkdir /.ov/etc-u |
| ExecStart=/bin/mkdir /.ov/etc-w |
| # Moving /etc/machine-id. Cannot --move, we have to --bind. |
| ExecStart=/bin/touch /.ov/etc-machine-id |
| ExecStart=/bin/mount --bind /etc/machine-id /.ov/etc-machine-id |
| ExecStart=/bin/umount /etc/machine-id |
| ExecStart=/bin/mount overlay -t overlay /etc -olowerdir=/etc,upperdir=/.ov/etc-u,workdir=/.ov/etc-w |
| ExecStart=/bin/mount --bind /.ov/etc-machine-id /etc/machine-id |
| ExecStart=/bin/umount /.ov/etc-machine-id |