[CentOS-virt] get xen name from guest

[Ryan Pugatch]

Christopher G. Stach II wrote:
> ----- "Ryan Pugatch" <rpug at linux.com> wrote:
> 
>> Hello,
>>
>> Is it possible to get the name that was set in a VM's xen config file
>> from the guest machine?  I'm interested in having my kickstart launch a 
>> script that can configure hostname, but to do that it would need to
>> get the name set in the config.
>>
>> Thanks,
>> Ryan
> 
> Since there isn't an rpm for the xenstore tools for guests, copy libxenstore.so.* and /usr/bin/xenstore-read (and the rest, if you want) to the guest and use something like this:
> 
> #!/bin/bash
> 
> let i=1
> 
> while [ $i -le 100 ]; do
>         NAME=$(./xenstore-read /local/domain/$i/name 2> /dev/null)
> 
>         [ -n "${NAME}" ] && break
> 
>         let i++
> done
> 
> [ -n "${NAME}" ] && echo ${NAME}
> 
> exit 0
> 
> I don't see why you would even need this, though. If you are using kickstart, you can get the hostname with either the static configuration or DHCP.
> 

The reason I want to do this is so I don't have to specify in the 
kickstart the IP to use.  With our Dell servers, for example, I just add 
the service tag in to DNS and then the server figures out what IP it is 
supposed to have.

Ryan