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Re: [fedora-virt] Success with Fedora 10 Xen pv_ops 2.6.29-rc8 dom0



On Tue, Jul 28, 2009 at 12:39:17AM +0300, Pasi K?rkk?inen wrote:
> On Tue, Mar 24, 2009 at 07:28:46PM +0000, Daniel P. Berrange wrote:
> > On Tue, Mar 24, 2009 at 09:25:02PM +0200, Pasi K?rkk?inen wrote:
> > > Hello!
> > > 
> > > I've used a lot of time trying to get my custom Xen pv_ops dom0 kernel working with
> > > virt-install and/or virt-manager on Fedora 10, and now it seems I got things
> > > working. 
> > > 
> > > If you want to play with this you need:
> > > 
> > > 1) New enough pv_ops dom0 kernel (2.6.29-rc8 or newer) so it has /sys/hypervisor support included
> > > 	- Compile with CONFIG_HIGHPTE=n since it seems to be broken still
> > > 2) libvirt 0.6.1 and related packages from Fedora 10 updates-testing
> > > 
> > > In addition to those I'm using Xen 3.3.1-9 packages from rawhide/F11 rebuilt for F10. 
> > > 
> > > With the older Fedora 10 libvirt packages libvirtd was crashing often for me, and
> > > I had some other issues with virt-install console window not opening but stalling etc..
> > > 
> > > Today I was able to run the following on Fedora 10 32bit PAE pv_ops dom0:
> > > 
> > > - CentOS 5.3 32bit PAE PV domU
> > > - Fedora 10 32bit PAE PV domU 
> > > - Use virt-install to install Fedora 10 32bit PAE PV domU (using custom kickstart
> > > to force PAE kernel installation to avoid the anaconda BUG which installs
> > > wrong non-PAE kernel as a default).
> > > 
> > > Fedora 11 (rawhide) installation most probably works too. 
> > 
> > FYI, I've just testing i686 and x86_64  Fedora 11 guest installs on a 
> > RHEL5 Xen host and they both work flawlessly out of the box - including
> > a  sane mouse pointer running in absolute, so no dual-cursor problems,
> > and installing correect PAE kernels
> > 
> 
> Replying to old thread.. today I tried installing F11 i386 domU with
> virt-install on centos 5.3 x86_64 dom0, and it doesn't seem to work..
> 
> The graphical VNC console doesn't show up, and it seems the domU kernel
> crashes.
> 
> x86_64 domU installation on x86_64 dom0 seems to work though.
> Are you sure i386 on x86_64 worked for you? 

Yep, just checked my RHEL-5 box and it has this config

name = "f11i686xen"
uuid = "1417ac4b-bd9a-61cc-6faf-8e842cd72cb9"
maxmem = 900
memory = 500
vcpus = 1
bootloader = "/usr/bin/pygrub"
on_poweroff = "destroy"
on_reboot = "restart"
on_crash = "restart"
vfb = [ "type=vnc,vncunused=1" ]
disk = [ "tap:aio:/var/lib/xen/images/f11i686.img,xvda,w" ]
vif = [ "mac=00:16:3e:71:38:63,bridge=xenbr0" ]


And the guest disk is fully instlaled

# ls -lhs /var/lib/xen/images/f11i686.img
3.4G -rwxr-xr-x 1 root root 5.1G Jun  4 06:33 /var/lib/xen/images/f11i686.img


FWIW, the guest kernel here is 2.6.29-0.258.rc8.git2.fc11.i686.PAE

So its possible things have changed since I did my install .... 

Also my x86_64 host only has 2 GB of RAM, so if there's any bugs with
i686 guests at the >4GB phys RAM mark I wouldn't have seen them

Daniel
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