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From: =?KOI8-R?B?5M3J1NLJyiDixcjUxdLF1w==?= <dbehterev@gmail.com>
Date: Thu, 25 Mar 2010 17:03:37 +0300
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Subject: Create GMIRROR only one slice
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Hello all!
I have problem with creating GMIRROR on select slice. So, I have two slice:
ls /dev | grep ad4
ad4
ad4s1
ad4s1a
ad4s1b
ad4s1c
ad4s2
ad4s2p1

fdisk /dev/ad4
...
The data for partition 1 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
    start 63, size 29350692 (14331 Meg), flag 80 (active)
    beg: cyl 0/ head 1/ sector 1;
    end: cyl 1023/ head 254/ sector 63
The data for partition 2 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
    start 29350755, size 595786590 (290911 Meg), flag 0
    beg: cyl 1023/ head 255/ sector 63;
    end: cyl 1023/ head 254/ sector 63
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>

On first slice I created ufs slice and on second - ZFS pool (I build it with
glabel):
mount
/dev/ad4s1a on / (ufs, local)
devfs on /dev (devfs, local)
tank on /tank (zfs, local)
tank/usr on /usr (zfs, local)
...
tank/var on /var (zfs, local)

glabel list
Geom name: ad4s2p1
...

I want GMIRROR'ing /dev/ad4s1:
gmirror label -v -b round-robin gm0 /dev/ad4s1
but I get error "Operation not permitted" (although I set sysctl
kern.geom.debugflags=16).
MY OS: FreeBSD 7.3 Stable.
What should I do to do this?
Thanks all.