The issue of increasing image size keeps coming up every 30 to 50 posts. I had reports that going over 2GB exposes limits in the FAT file system used on the MyDocs partiton, so I am limiting the image to 2GB. And I don't recommend trying to increase the size.

If you want more space, make a second partiton on a microSD card. It really is the best way.

EDIT: closechroot had a bug that should be fixed now. Use "sudo closechroot" from the command line until I have the new version in -testing.