강제 metadb 삭제법

== disksuit으로 mirror 구성된 o/s disk 강제로 metadb 제거 하는 방법.==
Ok boot cdrom –s
Singuser mode
# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c1t0d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/sbus@2,0/SUNW,socal@d,10000/sf@1,0/ssd@w2100002037a801b4,0
1. c1t1d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/sbus@2,0/SUNW,socal@d,10000/sf@1,0/ssd@w21000020375b94ae,0
#mount /dev/dsk/c1t0d0s0 /mnt
#cd /mnt/etc/
#cp system system.old
#vi system
----------------- omitted -------------
* Begin MDD root info (do not edit)
forceload: misc/md_trans
forceload: misc/md_raid
forceload: misc/md_hotspares
forceload: misc/md_stripe
forceload: misc/md_mirror
forceload: drv/pcisch
forceload: drv/qlc
forceload: drv/fp
forceload: drv/ssd
rootdev:/pseudo/md@0:0,8,blk
* End MDD root info (do not edit)
----------------- omitted -------------
rootdev:/pseudo/md@0:0,8,blk  <-- 이부분 삭제


#cd /mnt/etc/lvm
devpath lock md.cf md.ctlrmap md.tab mddb.cf runtime.cf
#cp /dev/null md.cf
#cp /dev/null mddb.cf
#cd /mnt/etc
#vi vfstab
--- Vfstab file edit----
/dev/md/dsk/d1 - - swap - no -
/dev/md/dsk/d0 /dev/md/rdsk/d0 / ufs 1 no -
------------------------------------------------------------
/dev/dsk/c1t0d0s1 - - swap - no -
/dev/dsk/c1t0d0s0 /dev/rdsk/c1t0d0s0 / ufs 1 no -
Meta device를 기존의 slice로 변경.
#cd /
#umount /mnt
#reboot -r