Can't *write* to a hard disk, not even a slice using fdisk(8).

Joan Picanyol i Puig lists-gmane at
Sat Apr 10 14:19:43 PDT 2004

On Sat, 10 Apr 2004 15:22:16 +0200, Julien Gabel wrote:

> Hello,
> Here is my problem. I had a hard disk for one year now, working together
> with an other identical disk in a _hard_ mirror.
What's a '_hard_ mirror'? How did you set it up?

> - But when I tried to create a slice on it, I get:
>   # fdisk -BI ad10
>   ******* Working on device /dev/ad10 *******
>   fdisk: can't write fdisk partition table: Operation not permitted
GEOM doesn't let you touch the disk if some partition is mounted off it.
Try setting kern.geom.debugflags to 1
> 3/ Anything else to say to diagnose my problem?
Please show us /etc/fstab and the output of mount


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