[Xen-API] XCP 1.1 xs-tools Version Override Problem

[brooks@xxxxxxxxxxx]

The version override feature allows XenCenter to function nicely with 
XCP.1.x. Unfortunately xs-tools doesn't share the love.  XCP 1.1 includes 
xs-tools-1.1 but thats not the version XCP expects when masquerading as 
XenServer 5.6 fp1/sp2. It expects xs-tools-5.x and it's unhappy about the 
version mismatch.  It's so unhappy that it's preventing live migrations:
VM = CentOS 6 x86_64 PV with:

     - xe-guest-utilities-1.1.0-651.x86_64.rpm
     - xe-guest-utilities-xenstore-1.1.0-651.x86_64.rpm

installed from xs-tools-1.1.0.iso

[root@xenc2n1 ~]# xe vm-migrate vm=2b038b1d-62bc-b4de-68c2-8ef1cfa8f9d3 
live=true host-uuid=2394d5b3-5b47-4a9b-9493-678120d7a576
You attempted an operation on a VM which requires a more recent version of the 
PV drivers. Please upgrade your PV drivers.
vm: 2b038b1d-62bc-b4de-68c2-8ef1cfa8f9d3 (i-3-12-VM)

I don't suppose there's an xs-tools version override hack we can apply :-).

I found this work item under XCP 1.1 on the wiki XCP Roadmap page:

     23 Jun 11 | Mike McClurg | Remove PV-driver migration checks for PV
     domains; check for presence in HVM domains

I suspect that didn't get done, or isn't working.  What functions do the 
xe-guest-utilities provide?  Without them installed you don't see any 
memory statistics under the "Performance" tab, but are they really needed 
for PV based VMs?
What we need is XCP support in XenCenter instead of a patch to XCP to make it 
appear as something it's not.  Even though XenCenter is a Windows application 
it's the best configuration, management, and monitoring application available 
for XenServer and XCP.


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