initd version

rootfs-overlay/etc/inittab

@@ -0,0 +1,62 @@
+# /etc/inittab
+#
+# Copyright
+#
+# Note: BusyBox init doesn't support runlevels.  The runlevels field is
+# completely ignored by BusyBox init. If you want runlevels, use
+# sysvinit.
+
+# Format for each entry: <id>:<runlevels>:<action>:<process>
+#
+# id        == tty to run on, or empty for /dev/console
+# runlevels == ignored
+# action    == one of sysinit, respawn, askfirst, wait, and once
+# process   == program to run
+
+
+# Startup the system.
+
+::sysinit:/bin/mount /proc  # Lightwhale requires the pseudo file systems for setup-persistence...
+::sysinit:/bin/mount /sys   # ...and since the rootfs is already mounted in RAM at this point...
+::sysinit:/bin/mount /run   # ...we have /etc/fstab present which is used for mount options...
+::sysinit:/bin/mount /tmp   # ...so we are mounting them as intended.
+::sysinit:/bin/mount /mnt   # 
+::sysinit:/bin/mount /var/log 
+::sysinit:/bin/mount -t cgroup2 none /sys/fs/cgroup
+
+::sysinit:/bin/mkdir -p /dev/pts /dev/shm /run/lock /run/db  # Subdirs in pseudo file system required by init scripts.
+
+#::sysinit:/lib/lightwhale/rescue-shell
+#::sysinit:/lib/lightwhale/setup-persistence
+
+# create a read-only mapping of the rootfs 
+::sysinit:mkdir -p /mnt/root.squashfs
+::sysinit:mount --bind / /mnt/root.squashfs
+::sysinit:mount --make-rprivate /mnt/root.squashfs/
+
+# create overlay
+::sysinit:/usr/sbin/zpool import nimux-zfs
+::sysinit:/bin/mount -t overlay overlay-etc -o lowerdir=/mnt/root.squashfs/etc/,upperdir=/mnt/overlays/root/etc/upper,workdir=/mnt/overlays/root/etc/work /etc
+::sysinit:/bin/mount -t overlay overlay-home -o lowerdir=/mnt/root.squashfs/home/,upperdir=/mnt/overlays/root/home/upper,workdir=/mnt/overlays/root/home/work /home
+
+null::sysinit:/bin/ln -sf /proc/self/fd /dev/fd
+null::sysinit:/bin/ln -sf /proc/self/fd/0 /dev/stdin
+null::sysinit:/bin/ln -sf /proc/self/fd/1 /dev/stdout
+null::sysinit:/bin/ln -sf /proc/self/fd/2 /dev/stderr
+
+::sysinit:/bin/mount -a
+#::sysinit:/sbin/swapon -a
+::sysinit:/bin/hostname -F /etc/hostname   # Because a custom hostname may have been mounted at this point.
+
+# Now run all the lovely rc scripts.
+::sysinit:/etc/init.d/rcS
+
+# Put a getty on the serial port.
+tty1::respawn:/sbin/getty -L tty1 0 vt100        # First console
+tty2::respawn:/sbin/getty -L tty2 0 vt100        # Extra console, for good measure.
+console::respawn:/sbin/getty -L console 0 vt100 # Serial console, for headless QEMU.
+
+# Stuff to do before rebooting.
+::shutdown:/etc/init.d/rcK
+#::shutdown:/sbin/swapoff -a
+::shutdown:/bin/umount -a -r