turbostation: More init-stuff

1 files changed, 163 insertions, 0 deletions

diff --git a/packages/openturbostation-init/files/reflash b/packages/openturbostation-init/files/reflash
new file mode 100644
index 0000000000..f2947822f6
--- /dev/null
+++ b/packages/openturbostation-init/files/reflash
@@ -0,0 +1,163 @@
+#!/bin/sh
+#
+# Open Protium Reflash. This script will take a firmware image consisting
+# of a compressed linux kernel image, concatentated with a jffs2 root 
+# filesystem image. The kernel MTD device is discovered by locating
+# the MTD partition with the tag "kernel" and the filesystem MTD device
+# is dicovered by locating the MTD partition with the tag "filesystem."
+# There is no TOC inside the firmware images so there is no direct way 
+# to validate that the sizes of the parts in the firmware match the 
+# existing MTD partitions. So there could be a mismatch. However, a
+# a mismatch size will be detect as this script mounts the newly laid
+# done filesystem, a mismatch guarantees this to fail. That being said
+# the script does validate the total size to prevent overwriting 
+# uboot. Furthermore the script makes sure the fsdev is not in use and
+# that the various images are block aligned.
+
+flimg=$1
+if [ -z "$flimg" ]; then
+	echo "Usage: reflash <image file>"
+	exit 1
+fi
+
+if [ \! -f $flimg -o \! -r $flimg ]; then
+	#
+	# not a file or not readable
+	#
+	echo "error: Image file [$flimg] not available"
+	exit 1
+fi
+
+dmesg | grep StorCenter >/dev/null 2>&1
+if [ $? -ne 0 ]; then
+	exit 0
+fi
+
+blksize=512
+mtd=/proc/mtd
+mtab=/proc/mounts
+mntdir=/tmp/fs.$$
+
+ktag=kernel
+fstag=filesystem
+
+kdev=` grep  $ktag $mtd | awk -F: '{print $1}' | sed -e 's?mtd?/dev/mtdblock/?g'`
+fsdev=`grep $fstag $mtd | awk -F: '{print $1}' | sed -e 's?mtd?/dev/mtdblock/?g'`
+
+flsize=`ls -l $flimg     | awk '{print $5}'`
+ksize=`grep   $ktag $mtd | awk '{print "0x" $2}'`
+fssize=`grep $fstag $mtd | awk '{print "0x" $2}'`
+
+#
+# Size comes out of dc in exp notation and test wont accept a hex number
+# so dumo it in hex then use awk to convert to decimal
+#
+size=0x`dc 16  o $ksize $fssize + p`
+size=`echo $size | awk '{printf ("%d",$1)}'`
+
+#
+# Make sure we are block aligned
+#
+kblks=`dc $ksize $blksize / p`
+r=`dc $ksize $blksize % p`
+if [ $r -ne 0 ]; then 
+	echo "error: Kernel partition is not block aligned."
+	exit 1
+fi
+
+#
+# Make sure we are block aligned
+#
+fsblks=`dc $fssize $blksize / p`
+r=`dc $fssize $blksize % p`
+if [ $r -ne 0 ]; then 
+	echo "error: Filesystem partition is not block aligned."
+	exit 1
+fi
+
+#
+# Check to see that we have enough room
+#
+if [ $flsize -gt $size ]; then
+	echo "error: Image size is bigger then available space."
+	exit 1
+fi
+
+#
+# Is fsdev mounted?
+#
+grep $fsdev $mtab > /dev/null 2>&1
+if [ $? -eq 0 ]; then
+	echo "error: $fsdev mounted"
+	exit 1
+fi
+
+#
+# If root is a jffs2 then close enough, im out
+#
+grep jffs2 $mtab > /dev/null 2>&1
+if [ $? -eq 0 ]; then
+	echo "error: $fsdev may be mounted"
+	exit 1
+fi
+
+
+#
+# Mount fsdev and save fsdev/linuxrc
+#
+mkdir $mntdir /tmp/$$
+mount -t jffs2 $fsdev $mntdir
+if [ $? -ne 0 ]; then
+	echo "error: Unable to mount $fsdev"
+	exit 1
+fi
+echo "Preserving /linuxrc in /tmp/$$"
+cp $mntdir/linuxrc* /tmp/$$
+umount $mntdir
+
+echo "Image:"
+echo "	Name  : $flimg"
+echo "	Length: $flsize"
+echo
+echo "Kernel:"
+echo "	Device: $kdev"
+echo "	Length: $ksize"
+echo "	Blocks: $kblks"
+echo 
+echo "Filesystem:"
+echo "	Device: $fsdev"
+echo "	Length: $fssize"
+echo "	Blocks: $fsblks"
+echo
+echo 'Ready to flash, Continue? (yes/no)'
+read continue
+if [ "z$continue" != "zyes" ]; then
+	rm -rf $mntdir /tmp/$$
+	exit 0
+fi
+
+#
+# Lets do the flash
+#
+echo Preserving existing flash in: $flimg.sav.$$ 
+dd of=$flimg.sav.$$ if=$kdev  bs=$blksize count=$kblks
+dd of=$flimg.sav.$$ if=$fsdev bs=$blksize count=$fsblks seek=$kblks
+
+echo Flashing new firmware....
+dd if=$flimg of=$kdev  bs=$blksize count=$kblks
+dd if=$flimg of=$fsdev bs=$blksize count=$fsblks skip=$kblks
+sync
+sleep 5 
+
+#
+# Mount fsdev and restore fsdev/linuxrc
+#
+mount -t jffs2 $fsdev $mntdir
+if [ $? -ne 0 ]; then
+	echo "error: Unable to re-mount $fsdev"
+	exit 1
+fi
+echo "Restoring /linuxrc"
+cp /tmp/$$/linuxrc* $mntdir
+umount $mntdir
+rm -rf $mntdir /tmp/$$