Usb disks don't know how to handle partitions. You have to use partfs IIRC or some other tool to partition it.
Hmm.. Here is what I would like to do. I would like to put a FAT32 and a fossil (or kfs) filesystem on a usb flash drive and use the FAT32 for botting and the fossil as my root filesystem. Lets say that the usb disk did support partitioning, or I used the entire usb disk as a single filesystem, is there any way to specify to mount /srv/usb's sdU4.0/data (or whatever name) as root? Or would I have to hack a mount of /srv/usb into /sys/src/9/boot and specify something like "local!/dev/sdU4.0/data"? If I use something like partfs, I would have to hack this into the /sys/src/9/boot stuff, right? Is there any long term desire to allow booting off of USB drives? Tim Newsham | www.thenewsh.com/~newsham | thenewsh.blogspot.com