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153 lines
4.2 KiB
153 lines
4.2 KiB
#!/bin/sh
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. /etc/init.d/globals
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MOUNTBASE=/mnt
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MOUNTPOINT="$MOUNTBASE/$MDEV"
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ROOTDEV=$(readlink /dev/root)
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BLOCKS="/sys/block/mmcblk0/mmcblk0p*/uevent"
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KERNELDEV=""
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K_PARTNAME=""
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ROOTFSDEV=""
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R_PARTNAME=""
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ROOTSUBDIR=""
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SUBDIRBOOT=0
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# to use partition names in non-subdirboot layout, set it to 1
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USE_PARTNAMES=0
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# check partition names
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DEVNAME=""
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PARTNAME=""
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for i in $BLOCKS; do
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if [ "$i" != "$BLOCKS" ]; then
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DEVNAME=$(cat $i | grep DEVNAME | cut -d '=' -f 2)
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if [ "$DEVNAME" == "$MDEV" ]; then
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PARTNAME=$(cat $i | grep PARTNAME | cut -d '=' -f 2)
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if [ -n "$(echo $PARTNAME | grep 'kernel')" ]; then
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KERNELDEV=$DEVNAME
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K_PARTNAME=$PARTNAME
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break
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elif [ -n "$(echo $PARTNAME | grep 'rootfs')" ]; then
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ROOTFSDEV=$DEVNAME
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R_PARTNAME=$PARTNAME
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if [ -n "$(echo $PARTNAME | grep 'linuxrootfs')" ]; then
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R_PARTNAME="linuxrootfs1"
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SUBDIRBOOT=1
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fi
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break
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elif [ -n "$(echo $PARTNAME | grep 'userdata')" ]; then
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ROOTFSDEV=$DEVNAME
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R_PARTNAME=$PARTNAME
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SUBDIRBOOT=1
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break
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fi
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fi
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fi
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done
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if [ "$SUBDIRBOOT" == "1" -o "$USE_PARTNAMES" == "1" ]; then
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MOUNTPOINT="$MOUNTBASE/$R_PARTNAME"
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elif [ "$PARTNAME" == "storage" ]; then
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MOUNTPOINT="$MOUNTBASE/$PARTNAME"
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fi
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# do not add or remove root device again...
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[ "$ROOTDEV" = "$MDEV" -a "$R_PARTNAME" != "userdata" ] && exit 0
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if [ -e /tmp/.nomdevmount ]; then
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LOGINFO "no action on $MDEV -- /tmp/.nomdevmount exists"
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exit 0
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fi
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case "$ACTION" in
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add)
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# do not mount kernel partitions
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if [ "$KERNELDEV" == "$MDEV" ]; then
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LOGINFO "[$ACTION] /dev/$MDEV is a kernel partition [$K_PARTNAME] - not mounting."
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exit 0
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fi
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if [ "$PARTNAME" == "swap" ]; then
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mkswap /dev/$MDEV
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swapon /dev/$MDEV
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exit 0
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fi
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if [ "$SUBDIRBOOT" == "1" ]; then
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if grep -q $MOUNTPOINT /proc/mounts; then
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LOGINFO "/dev/$MDEV already mounted [$R_PARTNAME] - not mounting again"
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exit 0
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fi
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mkdir -p /tmp/$MDEV
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mount -t auto /dev/$MDEV /tmp/$MDEV 2>&1 >/dev/null
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RET=$?
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[ $RET != 0 ] && LOGWARN "mount /dev/$MDEV to /tmp/$MDEV failed with $RET" && rmdir /tmp/$MDEV
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if [ "$R_PARTNAME" == "linuxrootfs1" ]; then
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LOGINFO "mounting /dev/$MDEV [$R_PARTNAME] to $MOUNTPOINT"
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mkdir -p $MOUNTPOINT
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mount --bind /tmp/$MDEV/linuxrootfs1 $MOUNTPOINT
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elif [ "$R_PARTNAME" == "userdata" ]; then
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# parse cmdline for rootsubdir
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for param in $(cat /proc/cmdline); do
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if [ -n "$(echo $param | grep rootsubdir)" ]; then
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ROOTSUBDIR=$(echo $param | cut -d '=' -f 2)
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break
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fi
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done
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for i in /tmp/$MDEV/*; do
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if [ -n "$(echo $i | grep linuxrootfs)" ]; then
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if [ "$ROOTSUBDIR" == "$(basename $i)" ]; then
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LOGINFO "/dev/$MDEV rootsubdir [$ROOTSUBDIR] is already mounted as root"
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continue
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fi
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MOUNTPOINT="$MOUNTBASE/$(basename $i)"
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if grep -q $MOUNTPOINT /proc/mounts; then
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LOGINFO "/dev/$MDEV already mounted [$(basename $i)] - not mounting again"
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else
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LOGINFO "mounting /dev/$MDEV [$(basename $i)] to $MOUNTPOINT"
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mkdir -p $MOUNTPOINT
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mount --bind /tmp/$MDEV/$(basename $i) $MOUNTPOINT
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fi
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fi
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done
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fi
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umount -lf /tmp/$MDEV
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RET=$?
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if [ $RET = 0 ]; then
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rmdir /tmp/$MDEV
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else
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LOGWARN "umount /tmp/$MDEV failed with $RET"
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fi
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else
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if grep -q "/dev/$MDEV" /proc/mounts; then
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LOGINFO "/dev/$MDEV already mounted - not mounting again"
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exit 0
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fi
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LOGINFO "[$ACTION] mounting /dev/$MDEV to $MOUNTPOINT"
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# remove old mountpoint symlinks we might have for this device
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rm -f $MOUNTPOINT
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mkdir -p $MOUNTPOINT
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mount -t auto /dev/$MDEV $MOUNTPOINT 2>&1 >/dev/null
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RET=$?
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if [ $RET != 0 ]; then
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LOGWARN "mount /dev/$MDEV $MOUNTPOINT failed with $RET"
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LOGWARN " $OUT1"
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rmdir $MOUNTPOINT
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fi
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fi
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;;
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# I think never comes a 'remove' from mdev, because never the mmcblock will be removed
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# It can be used for manually ( or per script ) umounting
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remove)
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LOGINFO "[$ACTION] unmounting $MOUNTBASE/$MDEV"
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grep -q "$MOUNTBASE/$MDEV " /proc/mounts || exit 0 # not mounted...
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umount -lf $MOUNTBASE/$MDEV
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RET=$?
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if [ $RET = 0 ]; then
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rmdir $MOUNTBASE/$MDEV
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else
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LOGWARN "umount $MOUNTBASE/$MDEV failed with $RET"
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fi
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;;
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esac
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