+if [ -n "${SWAPON}" ]
+then
+ devices=""
+
+ for device in /dev/[hs]d[a-z][0-9]*
+ do
+ if ! [ -b "${device}" ]
+ then
+ continue
+ fi
+
+ # udev (>= 146) no longer provides vol_id
+ if [ -x /lib/udev/vol_id ]
+ then
+ # lenny
+ /lib/udev/vol_id ${device%%[0-9]*} 2>/dev/null | grep -q "^ID_FS_USAGE=raid" && continue
+ else
+ # squeeze
+ /sbin/blkid -o udev -p ${device%%[0-9]*} | grep -q "^ID_FS_USAGE=raid" && continue
+ fi
+
+ magic=$(/bin/dd if="${device}" bs=4086 skip=1 count=1 2>/dev/null | /bin/dd bs=10 count=1 2>/dev/null) || continue
+
+ if [ "${magic}" = "SWAPSPACE2" -o "${magic}" = "SWAP-SPACE" ]
+ then
+ #log "Found ${device}"
+ devices="${devices} ${device}"
+ fi
+ done
+
+ # Remove all auto swap entries
+ if grep -qs "swap swap" "${FSTAB}"
+ then
+ grep -v "swap swap" "${FSTAB}" > "${FSTAB}".tmp
+ mv "${FSTAB}".tmp "${FSTAB}"
+ fi
+
+ # Add new swap entries
+ for device in ${devices}
+ do
+ echo "${device} swap swap defaults 0 0" >> "${FSTAB}"
+ done
+fi
+