Here is new version of backup-initrd script attached.
--
*********************************
**** Vladimir Stavrinov ******
******* v...@inist.ru *********
*********************************
#!/bin/sh
version=${1:-$(uname -r)}
STORAGE=/var/backups
IMAGE=initrd.img-$version
STATEDIR="/var/lib/initramfs-tools"
BOOTDIR=/boot
# Shamelessly ripped from /etc/cron.daily/standard
if cd $STORAGE && [ -s ${BOOTDIR}/$IMAGE ]; then
if ! cmp -s $IMAGE.0 ${BOOTDIR}/$IMAGE ; then
mv -v ${BOOTDIR}/$IMAGE $IMAGE
savelog -l $IMAGE > /dev/null
else
rm -v ${BOOTDIR}/$IMAGE
fi
touch ${BOOTDIR}/$IMAGE
sha1sum ${BOOTDIR}/$IMAGE > ${STATEDIR}/${version}
fi
