[mythtv-users] MythTV updates, back out plan, lvm snapshots
brent.bolin at gmail.com
Sun Feb 26 13:05:50 UTC 2012
I've know about lvm snapshots for a while but haven't used it.
Was tinkering with centos 6 running in a kvm environment and thought
I'd give it a try.
Assuming core OS is all in a single lv.
Free space for snapshots in vg.
lvcreate -L8G -s -n rootsnapshot /dev/vol00/root ( in my case )
And to back out if needed -
lvconvert --merge /dev/vol00/rootsnapshot ; init 6
Granted I've had a back end running for 4 years now. Never really had
a problem doing updates other then when changing MythtV releases
But if there was a major problem it would be a mad dash to get it
fixed cause the old lady would kill me.
Don't know how much simpler it can get; to get back to go.
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