live-boot

sys/kernel/live-boot/live-boot.script

@@ -0,0 +1,69 @@
+#!/bin/sh
+
+is_file_avaiable(){
+	disktmp=$(mktemp)
+	rm -f $disktmp
+	mkdir -p $disktmp || true
+	timeout 10 mount -t auto "$1" $disktmp &>/dev/null
+	[ -f "$disktmp/$2" ] && [ -b "$1" ]
+	status=$?
+	umount -lf $disktmp 2>/dev/null
+	return $status
+}
+
+mountroot()
+{
+	while [ "$root" == "" ] ; do
+		list=$(ls /sys/class/block/ | grep ".*[0-9]$" | grep -v loop | grep -v ram | grep -v nbd | grep -v fd | sed "s|^|/dev/|g")
+		for part in $list ; do
+			sleep 0.1
+			echo "Looking for: $part"
+			if is_file_avaiable "$part" "/live/filesystem.squashfs" ; then
+				export root=$part
+			elif is_file_avaiable "$part" "/mount-me"  ; then
+				export home=$part
+			fi
+		done
+	done
+}
+
+mount_top()
+{
+	:
+}
+
+mount_premount()
+{
+	if cat /proc/cmdline | grep "break=live" >/dev/null ; then
+		launch_interactive_shell
+	fi
+	for mod in dm_mod dm-raid raid0 raid1 raid456 loop ; do
+		modprobe $mod || true
+	done
+	if [ -f /ventoy/hook/arch/ventoy-disk.sh ] ; then
+		echo "Loading Ventoy hooks"
+		sh /ventoy/hook/arch/ventoy-disk.sh || true
+		sleep 0.3
+	fi
+}
+
+mount_bottom()
+{
+	mkdir -p /donkey/a # upper
+	mkdir -p /donkey/b # workdir
+	mkdir -p /live_root/
+	mkdir -p ${rootmnt}/
+	mkdir -p /source/ # lower
+	mount $root ${rootmnt}/ 2> /dev/null
+	mount ${rootmnt}/live/airootfs.sfs /source/ 2> /dev/null
+	mount -t overlay -o lowerdir=/source/,upperdir=/donkey/a/,workdir=/donkey/b overlay /live_root
+	mount -t tmpfs -o size=100% none /donkey/a
+	mount -t tmpfs -o size=100% none /donkey/b
+	[ -d /source/merge/ ] && cp -prfv /source/merge/* /live_root/
+	mount --bind /live_root ${rootmnt}/
+	mkdir ${rootmnt}/cdrom/ 2> /dev/null
+	mkdir ${rootmnt}/source/ 2> /dev/null
+	mount $root ${rootmnt}/cdrom/ 2> /dev/null
+	mount ${rootmnt}/live/filesystem.squashfs ${rootmnt}/source/ 2> /dev/null
+	[ "$home" != "" ] && mount $home ${rootmnt}/data/user 2>/dev/null
+}