[Unix-jun72] Help needed with my mkfs.c

I've just checked in my latest tools/mkfs.c into the svn repository. Could a few people eyeball it and look for errors. Even better, if you can eyeball the working rf0.dsk image and compare it to an image made by my mkfs.c. At present, I can make an rk0.dsk image with mkfs. I can run up a warm kernel and try to mount the rk0 image as /usr, with my /tmp/a.out. But when I try to chdir /usr, I get a Bad directory message. So something is screwy with the rk0.dsk that my mkfs.c is making. Thanks, Warren P.S typescript of warm boot: :login: root root # check # check indicates rk0.dsk is OK RF: 119 files 6 large 6 indirect 255 used 399 free 336 missing RK: 43 files 0 large 0 indirect 2 used 4784 free 0 missing # /tmp/a.out # I try to mount it /dev/rk0# chdir /usr # but the chdir fails Bad directory # du /usr # du /usr shows no results # df /usr # and df shows it is empty 0 # df # but df shows the free space on RF/RK 399+4784