Next Previous Contents 9. The swapinit.sh script This shell script initializes the swap space on the partition. The code for signature detection has been repeated 6 times because many a times the signature is properly detected only on the second or the third try. (Adapted from the original Swap-Space-HOWTO by H. Peter Anvin) #!/bin/sh # # swapinit.sh - activate the swap partition # # written by Rahul U. Joshi # Verify and initialize swap space # echo -n 'Verifying swap space... ' loopcount=0 # flag to indicate whether the partition has been activated or not activated=0 # check for signatures 6 times before giving up while [ $loopcount -lt 6 ] do if [ "`/bin/dd 2>/dev/null if=/dev/winswap bs=1 count=10 skip=4086`" = 'SWAP-SPACE' ]; then echo "Linux signature found, iteration $loopcount" echo "Activating swap partitions" swapon /dev/winswap activated=1 break elif [ "`/bin/dd 2>/dev/null if=/dev/winswap bs=1 count=11 skip=43`" = 'SWAP SPACE ' ]; then echo "DOS signature found, iteration $loopcount" echo "Making swap partition" mkswap /dev/winswap YYYYY echo "Activating swap partitions" swapon /dev/winswap activated=1 break else let loopcount=loopcount+1 fi done if [ $activated -ne 1 ] ; then echo "Swap signature not found after $loopcount tries" echo "No swapping partitions activated" exit 1 fi Next Previous Contents