#raw

## this snippet should NOT be used with systems subscribed
## to Red Hat Satellite Server or Spacewalk as these
## have a concept of "reactivation keys" to keep the systems
## appearing to be the same.  Also do not use if changing
## base channels, i.e. RHEL4 -> RHEL5 upgrades.

echo "Saving RHN keys..." > /dev/ttyS0

rhn_keys_found=no

insmod /lib/jbd.o
insmod /lib/ext3.o

mkdir -p /tmp/rhn

drives=$(list-harddrives | awk '{print $1}')
for disk in $drives; do
    DISKS="$DISKS $(fdisk -l /dev/$disk | awk '/^\/dev/{print $1}')"
done

# Try to find the keys on ordinary partitions
for disk in $DISKS; do
    name=$(basename $disk)
    mkdir -p /tmp/$name
    mount $disk /tmp/$name
    [ $? -eq 0 ] || continue # Skip to the next partition if the mount fails

    # Copy current RHN host keys out to be reused
    if [ -d /tmp/${name}/etc/sysconfig/rhn ]; then
        cp -a /tmp/${name}/etc/sysconfig/rhn/install-num /tmp/rhn
        cp -a /tmp/${name}/etc/sysconfig/rhn/systemid /tmp/rhn
        cp -a /tmp/${name}/etc/sysconfig/rhn/up2date /tmp/rhn
        rhn_keys_found="yes"
        umount /tmp/$name
        break
    fi
    umount /tmp/$name
    rm -r /tmp/$name
done

# Try LVM if that didn't work
if [ "$rhn_keys_found" = "no" ]; then
    lvm lvmdiskscan
    vgs=$(lvm vgs | tail -n +2 | awk '{ print $1 }')
    for vg in $vgs; do
        # Activate any VG we found
        lvm vgchange -ay $vg
    done

    lvs=$(lvm lvs | tail -n +2 | awk '{ print "/dev/" $2 "/" $1 }')
    for lv in $lvs; do
        tmpdir=$(mktemp -d findkeys.XXXXXX)
        mkdir -p /tmp/${tmpdir}
        mount $lv /tmp/${tmpdir} || continue # Skip to next volume if this fails

        # Let's see if the keys are in there
        if [ -d /tmp/${tmpdir}/etc/sysconfig/rhn ]; then
            cp -a /tmp/${tmpdir}/etc/sysconfig/rhn/install-num* /tmp/rhn/
            cp -a /tmp/${tmpdir}/etc/sysconfig/rhn/systemid* /tmp/rhn/
            cp -a /tmp/${tmpdir}/etc/sysconfig/rhn/up2date /tmp/rhn/
            rhn_keys_found="yes"
            umount /tmp/${tmpdir}
            break # We're done!
        fi
        umount /tmp/${tmpdir}
        rm -r /tmp/${tmpdir}
    done

    # And clean up..
    for vg in $vgs; do
        lvm vgchange -an $vg
    done
fi

# Loop until the RHN rpm is installed
if [ "$rhn_keys_found" = "yes" ]; then
    while : ; do
        sleep 10
        if [ -d /mnt/sysimage/etc/sysconfig/rhn ] ; then
            cp -af /tmp/rhn/* /mnt/sysimage/etc/sysconfig/rhn/
            logger "RHN KEY copied to newly installed system"
            break
        fi
    done &
fi
#end raw