278 lines
7.1 KiB
Bash
Executable File
278 lines
7.1 KiB
Bash
Executable File
#!/bin/sh
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################################## functions ##################################
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#mkfs_jffs2() <device in /dev/by-name>
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mkfs_jffs2() {
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! [ -x /usr/sbin/mkfs.jffs2 ] \
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&& ! [ -x /sbin/mkfs.jffs2 ] \
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&& echo "Not Found /usr/sbin/mkfs.jffs2 or /sbin/mkfs.jffs2" \
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&& return 1
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# format to jffs2
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local erase_block=$(/bin/cat /proc/mtd \
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| /bin/grep "$(basename $1)" \
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| /usr/bin/awk '{print $3}')
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/bin/mkdir -p /tmp/jffs2.dir/tmp
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mkfs.jffs2 -p -e 0x${erase_block} -d /tmp/jffs2.dir \
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-o /tmp/jffs2.img >/dev/null || return 1
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/bin/dd if=/tmp/jffs2.img of=$1 || return 1
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/bin/rm -rf /tmp/jffs2.img /tmp/jffs2.dir
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return 0
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}
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mount_etc() {
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local etc_update=0
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# if enable ota, do update
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[ -f /etc/init.d/rc.ota-upgrade ] \
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&& source /etc/init.d/ota-upgrade
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# fix fs
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local root_dev="$(readlink /dev/by-name/rootfs)"
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/bin/echo ${root_dev} | /bin/grep -q "mtdblock" \
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|| /usr/sbin/fsck.ext4 -y /dev/by-name/rootfs_data &>/dev/null
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# if mount failed, format.
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case "${root_dev}" in
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/dev/mtdblock*)
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/bin/mount -t jffs2 /dev/by-name/rootfs_data /etc \
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&& [ -e /etc/etc_complete -a ! -e /etc/etc_need_update ] \
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&& return
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# /etc/etc_complete and /etc/etc_need_update both exist, that means we just need to update
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[ -e /etc/etc_complete -a -e /etc/etc_need_update ] && /bin/echo "do etc update" && etc_update=1
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/bin/umount /etc
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[ x$etc_update = x"1" ] || {
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# not update, format first
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/bin/echo "Mount Failed: formating /dev/by-name/rootfs_data to jffs2 ..."
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mkfs_jffs2 "/dev/by-name/rootfs_data" || return 1
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}
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mount -t jffs2 /dev/by-name/rootfs_data /mnt
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;;
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*)
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/bin/mount -t ext4 /dev/by-name/rootfs_data /etc \
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&& [ -e /etc/etc_complete -a ! -e /etc/etc_need_update ] \
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&& return
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# /etc/etc_complete and /etc/etc_need_update both exist, that means we just need to update
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[ -e /etc/etc_complete -a -e /etc/etc_need_update ] && /bin/echo "do etc update" && etc_update=1
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/bin/umount /etc
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[ x$etc_update = x"1" ] || {
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# not update, format first
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/bin/echo "Mount Failed: formating /dev/by-name/rootfs_data to ext4 ..."
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mkfs.ext4 -m 0 /dev/by-name/rootfs_data >/dev/null || return 1
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}
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/bin/mount -t ext4 /dev/by-name/rootfs_data /mnt
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;;
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esac
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mkdir -p /tmp/etc
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/bin/cp -af /etc/* /tmp/etc/
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# keep the wifi config
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[ -e /mnt/wifi/wpa_supplicant.conf ] && {
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/bin/echo "keep the wifi config"
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/bin/cp /mnt/wifi/wpa_supplicant.conf /tmp/etc/wifi/
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}
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/bin/cp -af /tmp/etc/* /mnt/
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rm -rf /tmp/etc
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sync
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[ ! -e /mnt/etc_complete ] && touch /mnt/etc_complete
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[ -e /mnt/etc_need_update ] && /bin/echo "etc update done" && rm -f /mnt/etc_need_update
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sync
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/bin/mount -o move /mnt /etc
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}
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mount_usr(){
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[ -L /dev/by-name/extend ] || return
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/bin/mkdir -p /tmp/usr
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/bin/mount /dev/by-name/extend /tmp/usr >/dev/null || {
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rm -rf /tmp/usr
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return
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}
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! [ -d /tmp/usr/bin ] \
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&& umount /tmp/usr \
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&& rm -rf /tmp/usr \
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&& return
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/bin/mount -o move /tmp/usr /usr \
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&& rm -rf /tmp/usr
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}
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mount_sec_storage(){
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[ -e /dev/by-name/sec_storage ] || return
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local root_dev="$(readlink /dev/by-name/rootfs)"
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# fix sec_storage
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if [ -h /dev/by-name/sec_storage ]; then
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echo ${root_dev} | grep -q "mtdblock" \
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|| /usr/sbin/fsck.ext4 -y /dev/by-name/sec_storage &>/dev/null
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fi
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# mount sec_storage
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if [ -h /dev/by-name/sec_storage -a -d /data/tee ]; then
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case "${root_dev}" in
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/dev/mtdblock*)
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/bin/busybox mount -t jffs2 /dev/by-name/sec_storage /data/tee 2>/dev/null
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if [ "$?" -ne "0" ]; then
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mkfs_jffs2 "/dev/by-name/sec_storage"
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/bin/busybox mount -t jffs2 /dev/by-name/sec_storage /data/tee 2>/dev/null
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fi
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;;
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*)
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/bin/busybox mount -t ext4 /dev/by-name/sec_storage /data/tee 2>/dev/null
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if [ "$?" -ne "0" ]; then
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mkfs.ext4 /dev/by-name/sec_storage >/dev/null
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/bin/busybox mount -t ext4 /dev/by-name/sec_storage /data/tee 2>/dev/null
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fi
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;;
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esac
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fi
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}
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mount_single_app(){
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/usr/sbin/fsck.ext4 -y /dev/by-name/app &>/dev/null
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/bin/mount /dev/by-name/app /mnt/app
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}
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mount_dual_app(){
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mkdir -p /var/lock
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local appAB=$(fw_printenv -n appAB)
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local first_app=app
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local second_app=app_sub
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local applimit=$(fw_printenv -n applimit)
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[ x"$applimit" != x"" -a "$applimit" -ne 0 ] && {
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local appcount=$(fw_printenv -n appcount)
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let appcount+=1
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[ "$appcount" -gt "$applimit" ] && {
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echo "Warning: applimit ($applimit) exceeded. Switch app partition."
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if [ x"$appAB" = x"A" ]; then
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appAB=B
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elif [ x"$appAB" = x"B" ]; then
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appAB=A
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else
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echo "check appAB error: appAB=$appAB"
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appAB=A
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fi
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fw_setenv appAB $appAB
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echo "Switch appAB to $appAB"
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appcount=1
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}
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fw_setenv appcount $appcount
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}
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echo "appAB=$appAB"
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if [ x"$appAB" = x"A" ]; then
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first_app=app
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second_app=app_sub
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elif [ x"$appAB" = x"B" ]; then
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first_app=app_sub
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second_app=app
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else
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echo "check appAB error: appAB=$appAB"
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fi
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/usr/sbin/fsck.ext4 -y /dev/by-name/$first_app &> /dev/null
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/bin/mount -t ext4 /dev/by-name/$first_app /mnt/app \
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&& echo "mount $first_app success" \
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&& return
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echo "mount $first_app fail, now try mount $second_app"
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#mount first_app fail, try second_app
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/usr/sbin/fsck.ext4 -y /dev/by-name/$second_app &> /dev/null
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/bin/mount -t ext4 /dev/by-name/$second_app /mnt/app \
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&& echo "mount $second_app success" \
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&& return
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echo "mount app fail"
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}
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mount_app() {
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[ -L /dev/by-name/app ] || return
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if [ -L /dev/by-name/app_sub ]; then
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mount_dual_app
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else
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mount_single_app
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fi
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}
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set_parts_by_name() {
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# create by-name
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local parts part
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/bin/mkdir -p /dev/by-name
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parts=$partitions
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for part in $(/bin/echo ${parts} | /bin/sed 's/:/ /g')
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do
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[ ! -e /dev/${part#*@} ] && mdev -s #for initramfs
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/bin/ln -fs "/dev/${part#*@}" "/dev/by-name/${part%@*}"
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done
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}
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etc_part=/dev/nande
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#hardcode rootfs_data partition as nande
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mount_etc_hardcode() {
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# fix fs
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/usr/sbin/fsck.ext4 -y $etc_part &>/dev/null
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/bin/mount -t ext4 $etc_part /etc \
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&& [ -e /etc/etc_complete ] \
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&& return
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/bin/echo "mount Failed or etc_complete not exist"
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/bin/echo "now format $etc_part to ext4 ..."
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/bin/umount /etc
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mkfs.ext4 -m 0 $etc_part >/dev/null || return 1
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/bin/mount -t ext4 $etc_part /mnt
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/bin/cp -af /etc/* /mnt/
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sync
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/bin/mount -o move /mnt /etc
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#prepare by-name in /etc for next boot
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set_parts_by_name
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cp -fpr /dev/by-name /etc
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sync
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#now rootfs_data is ready, next boot can mount it as etc
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touch /etc/etc_complete
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sync # this sync not necessary, but sync after modify something is good
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}
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set_parts_by_name_hardcode() {
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#UDISK is the last partition, when UDISK is there, the /etc/by-name is ready
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[ -e /etc/by-name/UDISK ] && {
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#set_part_by_name may cost more than 100ms, now just copy it from /etc
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cp -fpr /etc/by-name /dev/
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return
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}
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#should not go here. now just show warning and do set_parts_by_name
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echo "warning: no /etc/by-name/UDISK, please check it"
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set_parts_by_name
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}
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#----------------------------------------------------------------
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/bin/mount -t proc /proc /proc
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/bin/mount -t tmpfs tmpfs /tmp
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/bin/mount -t sysfs sys /sys
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#common but slow
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set_parts_by_name
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mount_sec_storage
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mount_usr
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mount_etc
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mount_app
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#hardcode but fast
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#mount_etc_hardcode
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#set_parts_by_name_hardcode
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#mount_usr
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exec /sbin/init
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