Switch from Triple Booting back to Dual Booting

[Pene]

Hi,

 

I have triple booted successfully using the intstruction in the OnMac wiki (OSX, XP and Linux), but I want now to switch back to dual-booting again (just OSX and XP) as I am out of disk space.

 

I don't mind erasing xp and reinstalling it again, but I do not want to have to erase OSX.

 

So, how can I erase the two partitions of XP and LINUX and enlarge back the OSX one, so that bootcamp will be able to work on the drive again? (or at least to be able to manually repartition the drive for dual booting)

 

Thanks