Umount a Persistent KNOPPIX Disk Image in use

[Jody <jody.noury@linucie.net>]

Hi,

I'm using a PDI, in which I have already installed new packages and 
would like to install yakuake and gnump3d, but my PDI seems to have 
become to small.

I wonder how I could increase size of PDI without rebooting.

Could it be possible to have a mount PDI daemon which could mount/start 
or umount/stop with a script in /etc/init.d ?

Then we could increase size, change PDI, have a diff of working/not 
working config, package ...

I have tried to umount it by switching to second runlevel but /UNIONFS 
is busy,

fuser -v /UNIONFS returns nothing

I've also tried to umount /KNOPPIX.IMG but think I have to umount 
UNIONFS before.

--
Jody from Linucie