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xen-devel
Re: Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS K
Once again, i don't see any reason to to run 32-bit OS on Core2Duo,
unless you like Xen head ache. Core development (PVOPS) is obviously
running in 64-bit environment.
Boris.
--- On Fri, 7/24/09, Boris Derzhavets <bderzhavets@xxxxxxxxx> wrote:
From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Subject: Re: Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel
To: enming.teo@xxxxxxxxxxxxxxx, "Pasi Kärkkäinen" <pasik@xxxxxx>
Cc: "Sander Eikelenboom" <linux@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
Date: Friday, July 24, 2009, 12:47 PM
>After doing the above, I re-installed back the Xen hypervisor,
libraries and tools, and also >the kernel, initrd, and modules. Then I
proceeded to reboot my machine. After rebooting, > my CentOS 4.7 32-bit PV
guest is still able to start and run!
Why it wouldn't ? If your image stays the same.
> I am still very puzzled! What causes the PV guest initially cannot
start? Then what >subsequently causes the PV guest to suddenly be able to
start and run???
That is not supposed to happen. I would suggest clean OS (without any built in xen presence) install , followed by Xen 3.4.1+pvops kernel clean install.
Boris.
--- On Fri, 7/24/09, Teo En Ming <enming.teo@xxxxxxxxxxxxxxx> wrote:
From: Teo En Ming <enming.teo@xxxxxxxxxxxxxxx>
Subject: Re: Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel
To: "Teo En Ming" <enming.teo@xxxxxxxxxxxxxxx>, "Pasi Kärkkäinen" <pasik@xxxxxx>
Cc: "Sander Eikelenboom" <linux@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
Date: Friday, July 24, 2009, 12:19 PM
Dear All,
I am very puzzled. In investigating the cause of the sudden success of
the CentOS 4.7 32-bit PV guest being able to run, I have uninstalled
virt-manager and all of its dependencies:
docbook
python-gtk-vnc
xen-libs 3.3.1
scrollkeeper
xen-tools 3.3.1
libvirt 0.4.6
libvirt-python
vm-install 0.3.24
Then I proceeded to "make uninstall" in xen-3.4-testing source tree,
which also removed my self compiled Xen Dom 0 pvops enabled kernel, initrd
and kernel modules.
After doing the above, I re-installed back the Xen hypervisor,
libraries and tools, and also the kernel, initrd, and modules. Then I
proceeded to reboot my machine. After rebooting, my CentOS 4.7 32-bit PV
guest is still able to start and run!
I am still very puzzled! What causes the PV guest initially cannot
start? Then what subsequently causes the PV guest to suddenly be able to
start and run???
***scratches head***
Anyway my CentOS 4.7 guest domain is now running. I shall now proceed
to virtualize OpenSolaris 2009.06.
Thank you.
Also see screenshots of my CentOS 4.7 PV guest here:
http://teo-en-ming-aka-zhang-enming.blogspot.com/2009/07/creating-centos-47-32-bit.html
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering)
BEng(Hons)(Mechanical Engineering)
Technical Support Engineer
Information Technology Department
Asiasoft Online Pte Ltd
Tampines Central 1 #04-01 Tampines Plaza
Singapore 529541
Republic of Singapore
Mobile Phone: +65-9648-9798
MSN: teoenming@xxxxxxxxxxx
-----Original
Message-----
From: "Teo En Ming" <enming.teo@xxxxxxxxxxxxxxx>
To: "Teo En Ming" <enming.teo@xxxxxxxxxxxxxxx>, "Pasi
Kärkkäinen" <pasik@xxxxxx>
Cc: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>,
xen-devel@xxxxxxxxxxxxxxxxxxx
Date: Fri, 24 Jul 2009 22:54:26 +0800
Subject: Re: Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in
Jeremy's PVOPS Kernel
Hi Pasi,
It's very strange. Suddenly my CentOS 4.7 32-bit PV guest is able to
start!!! Previously it refuses to start at all.
I think I must have changed something in Dom 0 when I attempted "yast
--install virt-manager". This action might have solved the problem. When I
tried to install virt-manager, it also tries to install xen-libs-3.3.1 and
xen-tools-3.3.1 as dependencies. However, I started off my Xen Dom 0 pvops
kernel install with Xen 3.4.1 rc8 branch.
I need to investigate more why suddenly my CentOS 4.7 32-bit PV guest
is able to start.
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering)
BEng(Hons)(Mechanical Engineering)
Technical Support Engineer
Information Technology Department
Asiasoft Online Pte Ltd
Tampines Central 1 #04-01 Tampines Plaza
Singapore 529541
Republic of Singapore
Mobile Phone: +65-9648-9798
MSN: teoenming@xxxxxxxxxxx
-----Original
Message-----
From: "Teo En Ming" <enming.teo@xxxxxxxxxxxxxxx>
To: "Pasi Kärkkäinen" <pasik@xxxxxx>
Cc: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>,
xen-devel@xxxxxxxxxxxxxxxxxxx
Date: Fri, 24 Jul 2009 21:54:00 +0800
Subject: Re: Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in
Jeremy's PVOPS Kernel
Hi Pasi,
I realized that Fedora 10 32-bit anaconda installer does not
install PAE kernel after mounting the guest disk image file. I mounted the
guest disk image file using losetup and kpartx which adds device nodes to
/dev/mapper. I examined the /boot directory after mounting the guest disk
image file and found no PAE vmlinuz and initrd.
Still using the mounted Fedora 10 32-bit guest disk image file, I
changed root to the guest disk filesystems and attempted to install the PAE
kernel. Then I modified menu.lst to boot the PAE kernel. After modifying the
grub configuration of the guest domain, I un-mounted the guest filesystem.
I proceeded to boot the F10 32-bit guest, since I changed to PAE
kernel. It is able to boot now (since the PAE kernel is xen-aware) but then
it complains cannot mount /dev/root. Probably something to do with the PAE
initrd file.
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering)
BEng(Hons)(Mechanical Engineering)
Technical Support Engineer
Information Technology Department
Asiasoft Online Pte Ltd
Tampines Central 1 #04-01 Tampines Plaza
Singapore 529541
Republic of Singapore
Mobile Phone: +65-9648-9798
MSN: teoenming@xxxxxxxxxxx
-----Original
Message-----
From: Pasi Kärkkäinen <pasik@xxxxxx>
To: Teo En Ming <enming.teo@xxxxxxxxxxxxxxx>
Cc: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>,
xen-devel@xxxxxxxxxxxxxxxxxxx
Date: Fri, 24 Jul 2009 16:31:19 +0300
Subject: Re: Re[8]: [Xen-devel] Unable to Configure Xen Dom 0
in Jeremy's PVOPS Kernel
On Fri, Jul
24, 2009 at 08:37:09PM +0800, Teo En Ming wrote:
> Hi
>
> I attempted to install Fedora 10 32-bit PV guest using
> images/pxeboot/vmlinuz-PAE and
images/pxeboot/initrd-PAE.img from the F10
> media. The non-PAE kernel could not load the installer.
I finished my Fedora
> 10 32-bit PV guest installation but it also cannot boot
up after
> installation, same as the CentOS 4.7 PV guest
installation.
>
Fedora 10 installer has a bug, as a default it installs
non-PAE kernel for
xen domU. You need to use a kickstart script (like this) to
fix it:
http://pasik.reaktio.net/fedora/f10-xen-domu-ks.cfg
The important lines being:
-kernel
kernel-PAE
(Fedora 10 and Fedora 11 default kernels are compiled with
pv_ops Xen domU
support enabled, so there's no need for separate kernel-xen
with these distros).
Fedora 11 doesn't have that installer bug, so it installs
right
out-of-the-box as Xen domU.
What's the error you get when you start the guest after
installation?
Please paste the "xm log" as text.
I don't have any problems with CentOS 5.3 dom0.
-- Pasi
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