In article <440F8097.5040606@2005.smokva.net>,
Petar Bogdanovic  <p.netbsd@2005.smokva.net> wrote:
>'ello!
>
>I just wanted to 'scrubb' my new external USB-Harddisk..
>
>********************************************
>umass0 at uhub0 port 1 configuration 1 interface 0
>umass0: Western Digital External HDD, rev 2.00/6.02, addr 2
>umass0: using SCSI over Bulk-Only
>scsibus0 at umass0: 2 targets, 1 lun per target
>sd0 at scsibus0 target 0 lun 0: <WD, 1600BB External, 0602> disk fixed
>sd0: fabricating a geometry
>sd0: 149 GB, 152627 cyl, 64 head, 32 sec, 512 bytes/sect x 312581808 sectors
>********************************************
>
>
>..with..
>
>********************************************
>cgdconfig -s cgd1 /dev/sd0a blowfish-cbc 128 </dev/urandom
>dd if=/dev/zero of=/dev/rcgd1d bs=64k
>********************************************
>
>
>..but unfortunately, I get this:
>
>********************************************
>petar@starling
>$ sudo dd if=/dev/zero of=/dev/rcgd1d bs=64k
>dd: /dev/rcgd1d: Read-only file system
>1+0 records in
>0+0 records out
>0 bytes transferred in 0.003 secs (0 bytes/sec)
>********************************************
>petar@starling
>$ dmesg | tail
>(...)
>cgd1: error 30
>********************************************

do the cgdconfig again.. You've trashed the label with dd.

christos