> Just checking - is it actually 'LNX' and 'SWP' or 'LNX\0' and > 'SWP\0' (that's with a 0 byte at the end)? The latter is what the > dinstall program expects That's not true on Atari. There we have 3-letter codes. Secondly: dinstall doesn't call atari-fdisk anymore, but uses its own libfdisk. Roman