File systems on 4k sector devices?

[Phil Nelson <phil%pcnelson.net@localhost>]

Hello,

   I recently acquired a 3TB USB disk that attaches as a sd0 disk.  disklabel
reports that it has 4k sectors.   I can write a disklabel on the disk, but newfs
can not create a fs.

(parts of the disk label)
bytes/sector: 4096
sectors/track: 32
tracks/cylinder: 64
sectors/cylinder: 2048
cylinders: 357698
total sectors: 732566642

  d: 732566642         0     unused      0     0        # (Cyl.      0 - 
357698*)
 e:     50000        63     4.2BSD   1024  8192     0  # (Cyl.      0*-     24*)
 f: 732516579     50063     4.2BSD   4096 32768     0  # (Cyl.     24*- 357698*)
bash-4.1# newfs -S 4096 /dev/rsd0e
/dev/rsd0e: 195.3MB (50000 sectors) block size 32768, fragment size 4096
        using 4 cylinder groups of 48.84MB, 1563 blks, 3072 inodes.
rdfs: read error for sector 1: Invalid argument
bash-4.1# newfs -S 4096 /dev/rsd0f
/dev/rsd0f: 2861392.9MB (732516579 sectors) block size 32768, fragment size 4096
        using 3860 cylinder groups of 741.31MB, 23722 blks, 47104 inodes.
wtfs: write error for sector 732516578: Invalid argument

I'm running 5.1/i386.

(The e: above was just to try a small size.)

Is there support for 4K sectors in 5.1?   I've read that other people have 
successfully created file systems on 4k sector devices.

So, what am I doing wrong?

--Phil

-- 
Phil Nelson, http://pcnelson.net
life: http://goallpower.com