Merge pull request #262 from cronyx/master

jffs2 health check on init

building.sh

@@ -652,7 +652,7 @@ xm550() {
 # hi3516cv200                   # testing..
 # hi3518ev200                   # testing..
 # hi3518ev200_domsip            # DomSip
-hi3518ev200_hs303             # OpenIPC
+# hi3518ev200_hs303             # OpenIPC
 #
 # hi3516av100                   # OpenIPC
 # hi3516av100_ultimate          # OpenIPC_ultimate version

general/overlay/init

@@ -5,8 +5,8 @@ on_exit()
   mountpoint -q /proc && umount /proc
   exec /sbin/init $*
 }
-trap on_exit 0
 
+trap on_exit 0
 
 mount -t proc proc /proc || exit
 grep -q overlay /proc/filesystems || exit
@@ -14,20 +14,30 @@ grep -q overlay /proc/filesystems || exit
 if grep -q ubifs /proc/cmdline; then
   mount -t ubifs ubi0:rootfs_data /overlay
 else
-mount -t jffs2 /dev/$(awk -F ':' '/rootfs_data/ {print $1}' /proc/mtd | sed 's/mtd/mtdblock/') /overlay || \
+  mtdblkdev=`awk -F ':' '/rootfs_data/ {print $1}' /proc/mtd | sed 's/mtd/mtdblock/'`
-  mount -t ubifs ubi0:rootfs_data /overlay || mount -t tmpfs tmpfs /overlay || exit
+  mtdchrdev=`grep 'rootfs_data' /proc/mtd | cut -d: -f1`
+  mount -t jffs2 /dev/${mtdblkdev} /overlay
+  
+  if [ $? -ne 0 ] || { dmesg | grep "jffs2.*: Magic bitmask.*not found" > /dev/null 2>&1; } then
+	echo "jffs2 health check error, format required!"
+	flash_eraseall -j /dev/${mtdchrdev}
+	echo "Done! Remounting..."
+	mount -t jffs2 /dev/${mtdblkdev} /overlay || mount -t tmpfs tmpfs /overlay || exit
+	if ! cat /proc/mounts | grep ${mtdblkdev}; then
+	  echo "--------------------------------"
+	  echo "Crash - your flash in the trash!"
+	  echo "--------------------------------"
+	fi
+  fi
 fi
 
 if grep -q overlayfs /proc/filesystems; then
-  mount -t overlayfs overlayfs -o lowerdir=/,upperdir=/overlay,ro /mnt \
+  mount -t overlayfs overlayfs -o lowerdir=/,upperdir=/overlay,ro /mnt || { umount /overlay; exit; }
-    || { umount /overlay; exit; }
 else
   overlay_rootdir=/overlay/root
   overlay_workdir=/overlay/work
   mkdir -p ${overlay_rootdir} ${overlay_workdir}
-  mount -t overlay overlay \
+  mount -t overlay overlay -o lowerdir=/,upperdir=${overlay_rootdir},workdir=${overlay_workdir} /mnt || { umount /overlay; exit; }
-        -o lowerdir=/,upperdir=${overlay_rootdir},workdir=${overlay_workdir} /mnt \
-    || { umount /overlay; exit; }
 fi
 
 pivot_root /mnt /mnt/rom