Based on your ideas guys....
Here is what I did on a "live" and installed 1.2.3-RC system:
Your on your OWN here, but it works perfectly in my scenario:
ssh into the box:
Enter an option: 8 for shell
# gmirror label -v -b round-robin gm0 /dev/ad0
gmirror: Can't store metadata on /dev/ad0: Operation not permitted.
# sysctl kern.geom.debugflags=16
kern.geom.debugflags: 0 -> 16
# gmirror label -v -b round-robin gm0 /dev/ad0
Metadata value stored on /dev/ad0.
Done.
# echo geom_mirror_load="YES" > /boot/loader.conf
# cp /etc/fstab /etc/fstab.orig
# cd /etc
# vi fstab
change any items from /dev/ad0s1a to /dev/mirror/gm0s1a
(and so on for each entry)
then reboot and type the following:
# gmirror insert gm0 /dev/ad2
GEOM_MIRROR: Device gm0: provider ad2 detected.
GEOM_MIRROR: Device gm0: rebuilding provider ad2.
Checking status:
# gmirror status
Name Status Components
mirror/gm0 DEGRADED ad0
ad2 (2%)
# gmirror list | more
Geom name: gm0
State: DEGRADED
Components: 2
Balance: round-robin
Slice: 4096
Flags: NONE
GenID: 0
SyncID: 1
ID: 1374604831
Providers:
1. Name: mirror/gm0
Mediasize: 250059349504 (233G)
Sectorsize: 512
Mode: r5w4e8
Consumers:
1. Name: ad0
Mediasize: 250059350016 (233G)
Sectorsize: 512
Mode: r1w1e1
State: ACTIVE
Priority: 0
Flags: DIRTY
GenID: 0
SyncID: 1
ID: 3257120441
2. Name: ad2
Mediasize: 250059350016 (233G)
Sectorsize: 512
Mode: r1w1e1
State: SYNCHRONIZING
Priority: 0
Flags: DIRTY, SYNCHRONIZING
GenID: 0
SyncID: 1
Synchronized: 3%
ID: 272239463
--
J.D. Bronson
Aurora Sinai Medical Center
Aurora West Allis Medical Center
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