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#!/bin/sh
usage="Usage: $0 [hdd-data|flash-data|hdd-conf|flash-conf|jffs2-hdd-data|jffs2-flash-data|jffs2-hdd-conf|jffs2-flash-conf]"
# Set target disk
if [ $# -gt 1 ] ; then
echo $usage
exit 1
fi
if [ $# -eq 1 ] ; then
if [ "$1" = "flash-data" ] ; then
targ=/share/flash/data
copy=true
flag=.sdb1root
elif [ "$1" = "hdd-data" ] ; then
targ=/share/hdd/data
copy=true
flag=.sda1root
elif [ "$1" = "flash-conf" ] ; then
targ=/share/flash/conf
copy=true
flag=.sdb2root
elif [ "$1" = "hdd-conf" ] ; then
targ=/share/hdd/conf
copy=true
flag=.sda2root
elif [ "$1" = "jffs2-flash-data" ] ; then
targ=/share/flash/data
copy=
elif [ "$1" = "jffs2-hdd-data" ] ; then
targ=/share/hdd/data
copy=
elif [ "$1" = "jffs2-flash-conf" ] ; then
targ=/share/flash/conf
copy=
elif [ "$1" = "jffs2-hdd-conf" ] ; then
targ=/share/hdd/conf
copy=
else
echo $usage
exit 1
fi
else
echo $usage
exit 1
fi
# Check it's a real mount point
if grep $targ /proc/mounts >/dev/null 2>&1 ; then
echo "Target disk is $targ"
else
echo "Error: $targ is not a mounted disk"
exit 1
fi
# Start at the root directory
cd /
if [ -z "$copy" ] ; then
# Ensure /opt is there.
if [ ! -d $targ/opt ] ; then
echo "Creating new /opt directory on target disk."
mkdir -p $targ/opt
else
echo "Preserving existing /opt directory on target disk."
fi
if [ -d /opt -a ! -h /opt ] ; then
echo "Copying existing /opt directory from root disk to target disk."
tar cf - opt | ( cd $targ ; tar xf - )
mv /opt /opt.old
fi
echo "Linking /opt directory from target disk to root disk."
rm -f /opt ; ln -s $targ/opt /opt
# Ensure /usr/lib/ipkg is there.
if [ ! -d $targ/usr/lib/ipkg ] ; then
echo "Creating new /usr/lib/ipkg directory on target disk."
mkdir -p $targ/usr/lib/ipkg
fi
if [ ! -f $targ/usr/lib/ipkg/status -a -d /usr/lib/ipkg -a ! -h /usr/lib/ipkg ] ; then
echo "Copying existing /usr/lib/ipkg directory from root disk to target disk."
tar cf - usr/lib/ipkg | ( cd $targ ; tar xf - )
else
echo "Preserving existing ipkg database on target disk."
fi
if [ -d /usr/lib/ipkg -a ! -h /usr/lib/ipkg ] ; then
echo "Saving /usr/lib/ipkg directory on root disk in /usr/lib/ipkg.old"
rm -rf /usr/lib/ipkg.old
mv /usr/lib/ipkg /usr/lib/ipkg.old
fi
echo "Linking /usr/lib/ipkg directory from target disk to root disk."
rm -f /usr/lib/ipkg ; ln -s $targ/usr/lib/ipkg /usr/lib/ipkg
else
# Copy the complete rootfs to the target.
echo "Copying the complete rootfs from / to $targ."
/usr/bin/find / -print0 -mount | /usr/bin/cpio -p -0 -d -m -u $targ
rm -rf $targ/dev ; mv $targ/dev.state $targ/dev
rm -rf $targ/var ; mv $targ/var.state $targ/var
rm -f /.sd??root $targ/.sd??root
echo "Creating /$flag to direct switchbox to boot from $targ."
echo > /$flag
echo > $targ/$flag
fi
exit 0
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