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Re: [Qemu-devel] [PATCH 1/1] If user doesn't specify a uuid, generate a
From: |
Serge E. Hallyn |
Subject: |
Re: [Qemu-devel] [PATCH 1/1] If user doesn't specify a uuid, generate a random one |
Date: |
Tue, 27 Mar 2012 02:12:33 +0000 |
User-agent: |
Mutt/1.5.20 (2009-06-14) |
Quoting Anthony Liguori (address@hidden):
> On 03/26/2012 10:13 AM, Serge E. Hallyn wrote:
> >Currently, if the user doesn't pass a uuid, the system uuid is set to
> >all zeros. This patch generates a random one instead.
> >
> >Is there a reason to prefer all zeros? If not, can a patch like this
> >one be applied?
> >
> >Signed-off-by: Serge Hallyn<address@hidden>
>
> The other hypervisors don't have a concept of a transient guest like QEMU
> does.
True, and I generally don't like arguments of the form "but (some other)
does it like this," but...
> There is no state preserved between invocations of QEMU.
Right, and I really don't know how many users (besides me) run kvm
by hand, as opposed to using libvirt or testdrive. Perhaps testdrive
should be extended.
> Setting a random UUID doesn't seem like the right answer to me as it
> would potentially break Windows VMs.
>
> Perhaps if the DMI UUID isn't set, you could look at the root filesystem's
> UUID?
Interesting idea. I don't know enough to know at which point in the code
qemu would know that, but I can take a look.
> Not all platforms have a notion of platform UUID so as Ubuntu
> supports more architectures, this problem would have to be dealt
> with eventually.
So it sounds like in this form certainly it's nacked :)
thanks,
-serge
- [Qemu-devel] [PATCH 1/1] If user doesn't specify a uuid, generate a random one, Serge E. Hallyn, 2012/03/26
- Re: [Qemu-devel] [PATCH 1/1] If user doesn't specify a uuid, generate a random one, Andreas Färber, 2012/03/26
- Re: [Qemu-devel] [PATCH 1/1] If user doesn't specify a uuid, generate a random one, Brian Jackson, 2012/03/26
- Re: [Qemu-devel] [PATCH 1/1] If user doesn't specify a uuid, generate a random one, Anthony Liguori, 2012/03/26
- Re: [Qemu-devel] [PATCH 1/1] If user doesn't specify a uuid, generate a random one,
Serge E. Hallyn <=