The current autopartkit contains the following code: /* Need to define on a per arch basis */ #if defined(__i386__) #define DISK_LABEL "msdos" #else /* not __i386__ */ #error "Default DISK_LABEL is not known on this platform" #endif /* not __i386__ */ What is the partition table type on other platforms/architectures? I believe the available values are "bsd", "loop", "mac", "msdos", "pc98" and "sun". I got the values from the parted documentation.