[CentOS] building a Xen guest image on straight LVM partitions?

Johnny Tan linuxweb at gmail.com
Mon Dec 10 22:59:07 UTC 2007


Ross S. W. Walker wrote:
> Johnny Tan wrote:
>> Amos Shapira wrote:
>>> When I needed to build Xen guests under Debian I could 
>> follow more or
>>> less the instructions in http://preview.tinyurl.com/2oc48r and the
>>> advantage of this approach is that it allows me to setup 
>> the Xen guest
>>> directly on the LVM partition without making it consider the LVM
>>> partition as an entire disk with a partition table.
>> I might be missing something, but that link seems to talk 
>> about FAI and doesn't mention xen. I'm interested in seeing 
>> how it can install on the LVM partition but the OS doesn't 
>> see it as an entire disk with a partition table. What does 
>> "fdisk -l" show, then?
> 
> Here is a good link: http://wiki.rpath.com/wiki/Xen_DomU_Guide

Based on that link, this seems like a regular install of Xen 
onto a LVM partition. I thought Amos was referring to some 
special setup.

CentOS can definitely do this. Just setup LVM, and then 
manually edit the /etc/xen/myvm file so that the disk line is:

disk = [ 'phy:/dev/myvg/mylv,xvda,w', ]


johnn



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