Re: [Xen-users] centos guest domain?

[Steven Ellis <mail_lists@xxxxxxxxxxxxxxxx>]

Kent Watsen wrote:

> Steven Ellis wrote:
>
> > I've been running Centos 4.1 on top of Xen using the provided 2.6 
> > kernel that comes with 2.0.7. Works just fine with Centos4.1 and 
> > RHEL4U1.
> > Which version of Xen are you trying.
>
>
> Oh, this sounds very encouraging - I'm using the xen that comes with 
> SuSE 9.3, which contains the following xen-related rpms:
>    xen-doc-html-2.0.5c-4
>    xen-doc-ps-2.0.5c-4
>    kernel-xen-nongpl-2.6.11.4-20a
>    kernel-xen-2.6.11.4-20a
>    xen-doc-pdf-2.0.5c-4
>    xen-2.0.5c-4
>
>
> As you probably already know, CentOS 4.1's kernel's version is 
> 2.6.9-11...
> For fun, I tried to boot CentOS as a guest domain using the same 
> config file I used for my SuSE-based guest domain before I moved it 
> into LVM (I have a 2nd drive I'm using just for staging guest domains):
>    kernel = "/boot/vmlinuz-xen"
>    ramdisk = "/boot/initrd-xen"
>    memory = 256
>    name = "CentOS"
>    vif = [ 'mac=aa:cc:00:00:00:63, bridge=xen-br0' ]
>    disk = [ 'phy:hdb1,hdb1,w', 'phy:hdb2,hdb2,w' ]
>    netmask="255.255.255.0"
>    gateway="10.0.3.1"
>    hostname= "centos"
>    root = "/dev/hdb1 ro"
>    extra = "3"
>
>
> But launching the guest domain this way led to a kernel panic.
>
> Could you be more specific regarding how you used the "provided 2.6 
> kernel" - did you copy a file into the guest's filesystem?  - which 
> file did you copy?

1. You need to copy the modules for the DomU kernel into the guest 
filesystem.
2. You probably need an initrd for the guest otherwise it will panic.

3. I'd personally advise using the DomU kernel that comes with the 2.0.7 
tar ball as it is closer to the RH released kernel.
STeve

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