[zfs-discuss] Identical UUID on cloned+promoted ZVOL

Schlacta, Christ aarcane at aarcane.org
Sun Jan 26 04:44:10 EST 2014


That's the filesystem on the zvol's UUID.  Not ZFS' UUID.  That behavior is
normal.  You can recreate swap, and you can change the UUID on an extn
filesystem if you ever need to.  It's not a bad idea if you're building
from clones.

http://www.sudo-juice.com/how-to-change-the-uuid-of-a-linux-partition/


On Sun, Jan 26, 2014 at 1:17 AM, Turbo Fredriksson <turbo at bayour.com> wrote:

> Is this the correct behavior? It seems wrong somehow...
>
>
> /dev/zvol/share/VirtualMachines/Debian/ZoLRepo/ZoLRepo_Wheezy_x64-part1:
> UUID="63921dc5-051c-4f09-9033-361f21daff3a" TYPE="ext4"
>
> /dev/zvol/share/VirtualMachines/Debian/ZoLRepo/ZoLRepo_Jessie_x64-part1:
> UUID="63921dc5-051c-4f09-9033-361f21daff3a" TYPE="ext4"
>
> /dev/zvol/share/VirtualMachines/Debian/ZoLRepo/ZoLRepo_Wheezy_x64-part5:
> UUID="faa7c184-cef3-41ee-b52c-3f9ad107f976" TYPE="swap"
>
> /dev/zvol/share/VirtualMachines/Debian/ZoLRepo/ZoLRepo_Jessie_x64-part5:
> UUID="faa7c184-cef3-41ee-b52c-3f9ad107f976" TYPE="swap"
>
> The Wheezy ZVOL is the 'original' and the Jessie one(s) is a clone of the
> latest snapshot from the Wheezy
> ZVOL and then promoted.
> --
> Try not. Do. Or do not. There is no try!
> - Yoda
>
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>

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