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Re: [Xen-devel] Q: How to find own domid or uuid from domU?

To: Christian.Limpach@xxxxxxxxxxxx
Subject: Re: [Xen-devel] Q: How to find own domid or uuid from domU?
From: Markus Armbruster <armbru@xxxxxxxxxx>
Date: 2006年5月23日 09:52:00 +0200
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, "Andrew D. Ball" <aball@xxxxxxxxxx>
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"Christian Limpach" <christian.limpach@xxxxxxxxx> writes:
> There's a uuid node under the vm path. I.e. you'd do:
> vmpath=$(xenstore-read vm)
> uuid=$(xenstore-read $vmpath/uuid)
Works in dom0:
 # xenstore-read vm
 /vm/00000000-0000-0000-0000-000000000000
 # xenstore-read /vm/00000000-0000-0000-0000-000000000000/uuid
 00000000-0000-0000-0000-000000000000
Fails in domU:
 # xenstore-read vm
 /vm/947df77a-58b5-4e3d-9b6c-aa0178d8e133
 # xenstore-read /vm/947df77a-58b5-4e3d-9b6c-aa0178d8e133/uuid
 xenstore-read: couldn't read path 
/vm/947df77a-58b5-4e3d-9b6c-aa0178d8e133/uuid
Please advise.
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