[Novalug] LVM Snapshots
James Ewing Cottrell 3rd
JECottrell3 at Comcast.NET
Sat Dec 18 14:25:04 EST 2010
Is it OK to run off a snapshot? Let me clarify.
I installed some big software package and figured I'd take a snapshot to
save the starting configuration. It wanted me to do a reboot, and my
grub and fstab does mount points by label: root=LABEL=myrootlabel. Well,
I forgot to relabel the snapshot via e2label
and I believe that somehow the snapshot was the one that was booted
onto. I became suspicious later when things disappeared out of my /root
directory. Interestingly enough, I didn't find them in the other /root
I had another case where I did something similar. I wanted to create
several variants of the Ubuntu distro: regular, KDS, and LXDE.
So I installed a text only version, added what I thought was a bunch of
cool stuff, and made a snapshot for each of the variants. That time I
actually did re2label the snapshots, and even changed the UUIDs, and did
the equivalent of a tasksel on each variant.
It worked for awhile, but at some point I couldn't get any of the
variants to boot or even the original text only version.
Any thoughts? SELinux was off on all systems.
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