recipes-google/boot/gbmc-no-initrd/prep-rwfs-overlay.service

[Unit]
DefaultDependencies=no
After=local-fs-pre.target
Before=local-fs.target
Wants=run-initramfs-rw.mount
After=run-initramfs-rw.mount

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=prep-rwfs-overlay.sh