> Why you named /dev/sdM0/dos not /dev/sdM0/9fat? > I prefer the latter, because it is accordant with other cpus.
This is standard Plan 9 behaviour of disk/fdisp -p, on any cpu. The convention is that dos is the name for a primary dos partition, and 9fat is the name for a dos subpartition at the start of a plan9 partition. Perhaps you are thinking of one of the forks which does it differently? If you prefer different naming, you can change it yourself with a 'part' command to /dev/sdM0/ctl - /cfg/$sysname/termrc would be a sensible place to do this.
