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Re: [fedora-virt] pv_ops dom0 kernel RPM, configuration & setup help anyone?



On Wed, Jul 08, 2009 at 05:45:53PM +0300, Pasi Kärkkäinen wrote:
> On Wed, Jul 08, 2009 at 10:05:55AM -0400, Lester M. wrote:
> > 
> > Thank you Pasi,
> > 
> > Here is what my grub.conf entry looks like (with the xen-3.4.1 tools
> > compiled,) after you install all 4 rpms from myoung's fedorapeople page: (
> > http://fedorapeople.org/~myoung/dom0/<http://fedorapeople.org/%7Emyoung/dom0/>
> > )
> > 
> > title Fedora (2.6.31-0.1.2.37.rc1.git5.xendom0.fc12.i686.PAE)
> >     root (hd0,0)
> >     kernel /vmlinuz-2.6.31-0.1.2.37.rc1.git5.xendom0.fc12.i686.PAE ro
> > root=/dev/mapper/vg01-lv_root rhgb quiet nomodeset
> >     initrd /initrd-2.6.31-0.1.2.37.rc1.git5.xendom0.fc12.i686.PAE.img
> > 
> > 
> > When you compile and install xen-3.4.1 the following is created in /boot:
> > 
> > -rw-r--r--. 1 root root  498660 2009-07-07 17:08 xen-3.4.1-rc6.gz
> > lrwxrwxrwx. 1 root root      16 2009-07-07 17:08 xen-3.4.gz ->
> > xen-3.4.1-rc6.gz
> > lrwxrwxrwx. 1 root root      16 2009-07-07 17:08 xen-3.gz ->
> > xen-3.4.1-rc6.gz
> > lrwxrwxrwx. 1 root root      16 2009-07-07 17:08 xen.gz -> xen-3.4.1-rc6.gz
> > 
> > 
> > I modified it per the pvops wiki page: (
> > http://wiki.xensource.com/xenwiki/XenParavirtOps)
> > 
> > title Fedora (2.6.31-0.1.2.37.rc1.git5.xendom0.fc12.i686.PAE)
> >     root (hd0,0)
> >     kernel /xen-3.4.1-rc6.gz dom0_mem=512M
> >     module /vmlinuz-2.6.31-0.1.2.37.rc1.git5.xendom0.fc12.i686.PAE ro root=/dev/mapper/vg01-lv_root rhgb quiet
> >     module /initrd-2.6.31-0.1.2.37.rc1.git5.xendom0.fc12.i686.PAE.img
> > 
> >
> 
> This looks correct..
>  
> > 
> > This is what is in my /etc/fstab:
> > 
> > none                    /proc/xen               xenfs   defaults        0 0
> > 
> > 
> > So now I boot. When I boot the system the dom0 starts up instantly...., to
> > the point where it says "scrubbing free ram" then the screen goes blank and
> > all system activity ceases.
> > 
> 
> Hmm.. try removing the "rhgb quiet" from the vmlinuz line in grub.conf.
> 
> Is the last line you see something like this?:
> 
> (XEN) Scrubbing Free RAM: ..........done.
> 
> 
> You could also try adding "loglvl=all guest_loglvl=all noreboot" to the xen.gz line
> to grub.conf.
> 
> So try with this grub.conf:
> 
> title Fedora (2.6.31-0.1.2.37.rc1.git5.xendom0.fc12.i686.PAE)
>     root (hd0,0)
>     kernel /xen-3.4.1-rc6.gz dom0_mem=512M loglvl=all guest_loglvl=all noreboot
>     module /vmlinuz-2.6.31-0.1.2.37.rc1.git5.xendom0.fc12.i686.PAE ro root=/dev/mapper/vg01-lv_root
>     module /initrd-2.6.31-0.1.2.37.rc1.git5.xendom0.fc12.i686.PAE.img
> 
> 
> > Has anyone tried these rpms? I am not sure if i can scream out "bug!" "bug!"
> > because I cannot find anyone that has actually installed these rpms as part
> > of a deployment process, (a workflow, a howto, a "step by step" edit "this"
> > or edit "that".) so I am not sure if it is that I am missing a config
> > parameter or not.
> >
> 
> I've used self-compiled pv_ops dom0 successfully on my testing box, but I
> haven't really tried this RPMs..
> 
> If you don't 
>  

Heh.. forgot to finish this sentence. If you're having problems getting the
console output from xen and/or pv_ops dom0 kernel, you should set up a
serial console.

There are instructions for that on the XenParavirtOps wiki page.

-- Pasi


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