All versions of minixfs 0.60 have a silly dir bug in them. Basically any V2 filesystem with a dir bigger than 7K will crash when reading this dir. For some reason I still can't fathom this wasn't triggered on my system! Fix: change the one occurence of NULL in zone.c to &dummy . Naturally pl5 will have this, but it's so silly I thought I'd send the fix before them. Steve.