Manuel Bouyer wrote:

> This looks good, and I find the same value using another way to compute it.
> If you create on wd0 a partition starting at 192, can you mount
> it and find the same value as raid0a ?

# disklabel raid0
  a:  16777216         0     4.2BSD   2048 16384 27672
  b:   2097152  16777216       swap
  d: 241254528         0     unused      0     0
  e: 222380160  18874368     4.2BSD   2048 16384 28856

# dc
18874368        # size of raid0e
192		# size of RAID structures
+p
18874560	# offset of wd0f

# disklabel wd0
  a: 241254657        63       RAID
  c: 241254657        63     unused      0     0
  d: 241254720         0     unused      0     0
  e:  16777216       192     4.2BSD   2048 16384 27672
  f: 222380160  18874560     4.2BSD   2048 16384 28856

# mount /dev/wd0e /mnt
mount_ffs: /dev/wd0e on /mnt: incorrect super block
# mount /dev/wd0f /mnt
mount_ffs: /dev/wd0f on /mnt: incorrect super block

Martti