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#!/bin/sh
if [ ! -f /boot/zImage ] ; then
echo "Cannot find kernel to flash in /boot/zImage"
exit 1
fi
/bin/rm -f /boot/zImage-partition
if [ -f /boot/zImage-partition ] ; then
echo "Unable to remove kernel partition file"
exit 1
fi
echo "Creating kernel partition header"
/usr/sbin/kern_header /boot/zImage /boot/zImage-partition
if [ ! -f /boot/zImage-partition ] ; then
echo "Unable to create kernel partition header"
exit 1
fi
echo "Creating kernel partition file"
/bin/cat /boot/zImage >> /boot/zImage-partition
/bin/rm -f /boot/zImage-partition.old
if [ -f /boot/zImage-partition.old ] ; then
echo "Unable to remove old kernel partition file"
exit 1
fi
echo "Saving old kernel partition"
cat /dev/mtdblock2 > /boot/zImage-partition.old
if [ ! -f /boot/zImage-partition.old ] ; then
echo "Unable to create old kernel partition file"
exit 1
fi
/bin/ls -l /boot/zImage /boot/zImage-partition /boot/zImage-partition.old
echo "Flashing new kernel partition"
cat /boot/zImage-partition > /dev/mtdblock2
/bin/rm -f /boot/zImage-partition.verify
if [ -f /boot/zImage-partition.verify ] ; then
echo "Unable to remove kernel partition verify file"
exit 1
fi
echo "Verifing new kernel partition"
/bin/dd if=/dev/mtd2 of=/boot/zImage-partition.verify bs=1 \
count=`/bin/dd if=/dev/mtd2 bs=4 count=1 2>/dev/null | \
/usr/bin/hexdump -n 6 -e '"%02d"'` 2>/dev/null
if [ ! -f /boot/zImage-partition.verify ] ; then
echo "Unable to create kernel partition verify file"
exit 1
fi
if cmp /boot/zImage-partition /boot/zImage-partition.verify ; then
echo "Verification successful"
/bin/rm -f /boot/zImage-partition.verify
/bin/rm -f /boot/zImage-partition
/bin/rm -f /boot/zImage-partition.old
exit 0
fi
echo "VERIFICATION FAILED - DANGER DANGER DANGER"
echo "You must now manually reflash the new kernel,"
echo "or reflash the old kernel back again."
echo "The kernel partition is /dev/mtdblock2"
echo "The old kernel partition is in /boot/zImage-partition.old"
echo "The present partition contents are in /boot/zImage-partition.verify"
echo "The new kernel partition is in /boot/zImage-partition"
exit 1
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