for FS in `df -lHP -t ext3|egrep -vE “^Filesystem|none”|cut -d” ” -f1`
do echo “FS check status – $FS”
tune2fs -c 0 $FS
done

script 1:

#!/bin/bash
echo Do you want a forced filesystem check after the next boot? y/n
read ANSWER
if [$ANSWER = 'y']; then
tune2fs -c 1 /dev/sda1 (repeat for every filesystem, filesystem mentioned here is an example)
fi

script 2:

#!/bin/bash
tune2fs -c 0 /dev/sda1 (repeat for every filesystem, filesystem mentioned here is an example)

tune2fs -c 0 [a filesystem]

on every filesystem will stop forced fs checks.

If you want to be asked whether you want to have a forced fs check after reboot, create 2 little scripts in /etc/init.d/:
One that asks whether you want a forced fs check and then does ‘tune2fs -c 1′ on your filesystems if you answer yes (link to that script in /etc/rc0.d and /etc/rc6.d)
And a second one that simply resets it by doing ‘tune2fs -c 0′ (link to that script in /etc/rc1.d, /etc/rc2.d, /etc/rc3.d, /etc/rc4.d and /etc/rc5.d).
Use a low S number for the link to the first script, as you want it to be launched before the OS starts going through its shutdown scripts (between 0 and 10 should be right), for the link to the second script a very high S number as you want it to be launched after all the other boot scripts (between 90 and 100 should be fine).

need info about bash scripting? http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-10.html#ss10.1 -> this shows you exactly what you need to do for the first script, only without the tune2fs command at the end. The second script only needs the #!/bin/bash line and the tune2fs command…

Basically, just add these lines to /etc/e2fsck.conf:
[options]
allow_cancellation = true

Just included it in my setup, now I have to wait 30 reboots to check it… ;)