How to boot from SDS mirror disk
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- c0t0d0 – rootdisk
- c0t1d0 – mirrordisk
- Find out the alias if any in eeprom
- Boot from CD or jumpstart or anyway and mount the S0 of mirror disk.
e.g. # mount /dev/dsk/c0t1d0s0 /mnt
# vi /mnt/etc/vfstab
modify all /dev/md/dsk/d0 ,d1, d2, d3 entries back to cxtxdxsx format.
# vi /etc/system
comment out rootdev:/pseudo/md@0:0,10,blk entry as below.
* rootdev:/pseudo/md@0:0,10,blk
# init 0 :go to ok prompt
{0} ok boot mirrordisk
System Should come up normally.
Boot from main disk – root disk after mirror detach:
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No modification required, system should boot normally
How to clear out all meta devices even from root disk:
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- detach mirror
- clear mirror metadevices (submirrors)
- modify /etc/vfstab and /etc/system in mirror disk, so incase you have to
boot from mirror, you can boot from it.
- modify /etc/vfstab and /etc/system same way as mirror disk, to completely
clear md devices and change back to ctd format.
