no ad1s3a,b,d... on ad1s3 after bsdlabel

[Snow Mountains]

2008/3/12, Lowell Gilbert <freebsd-questions-local at be-well.ilk.org>:
> "Snow Mountains" <snow.mountains.4 at gmail.com> writes:
>
>  > I try to understand bsdlabel.
>  > I have former fat slice (ad1s3) on my disk and I want to make several
>  > BSD partitions on it. I did this:
>  >
>  > # dd if=/dev/zero of=/dev/ad1s3 bs=1k count=1024
>  > 1024+0 records in
>  > 1024+0 records out
>  > 1048576 bytes transferred in 0.318986 secs (3287217 bytes/sec)
>  > # bsdlabel -w ad1s3
>  > # bsdlabel -e ad1s3
>  > (edit)
>  > # bsdlabel ad1s3
>  > # /dev/ad1s3:
>  > 8 partitions:
>  > #        size   offset    fstype   [fsize bsize bps/cpg]
>  >   a: 10000000       16    4.2BSD        0     0     0
>  >   b: 10000000 10000016    4.2BSD        0     0     0
>  >   c: 47616660        0    unused        0     0         # "raw" part, don't edit
>  >   d: 27616644 20000016    4.2BSD        0     0     0
>  > # newfs -U /dev/ad1s3a
>  > newfs: /dev/ad1s3a: could not find special device
>  > # ls /dev/ad1s3*
>  > /dev/ad1s3
>  > #
>  >
>  > What I miss because I don't have ad1s3a,b,d?
>  > If repeat same procedure on disk (big file) mounted as /dev/md0, a see
>  > /dev/md0,a,b,d,e... after this group of commands.
>
>
> On what version of FreeBSD?
>

This happens on:

# uname -r
6.2-RELEASE-p11

SergiM