Xen users - Sep 2011 - Ubuntu 11.04 64-bit HVM on xen-unstable 23842

I am running xen-unstable (change log 23842) and linux 3.0 (ubuntu
10.10) on a Lenovo x220. I am having trouble installing ubuntu 11.04
64-bit with the following config file:

builder=''hvm''
memory = 1024
name = ''ubuntu''
vcpus = 2
pae = 1
acpi = 1
apic = 1
vif = [ '''' ]
disk =
[''/dev/vg/ubuntu,raw,hda,w'',''/var/xen/isos/ubuntu-11.04-server-amd64.iso,raw,hdc,devtype=cdrom,r'']
vnc = 0
sdl = 1

Both the disk and network devices are not recognized by the installer.
The disk is of course the killer. I get a message saying "No disk
driver was detected" and a list of drivers to choose from. None of the
drivers work. Is something wrong with my configuration file? I have
also included the qemu log file output

BTW, I was able to install CentOS 5.6 and Windows 7 without any issues.

Thanks,
AP

LOG OUTPUT
---------------------
videoram option does not work with cirrus vga device model. Videoram set to 4M.
Using file /dev/vg/ubuntu in read-write mode
Strip off blktap sub-type prefix to
/var/xen/isos/ubuntu-11.04-server-amd64.iso (drv ''aio'')
Using file /var/xen/isos/ubuntu-11.04-server-amd64.iso in read-only mode
Watching /local/domain/0/device-model/20/logdirty/cmd
Watching /local/domain/0/device-model/20/command
Watching /local/domain/20/cpu
qemu_map_cache_init nr_buckets = 10000 size 4194304
shared page at pfn feffd
buffered io page at pfn feffb
Guest uuid = 53650e46-1301-4a00-964b-ad0852ad2026
populating video RAM at ff000000
mapping video RAM from ff000000
Register xen platform.
Done register platform.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
xs_read(/local/domain/0/device-model/20/xen_extended_power_mgmt): read error
medium change watch on `hdc'' (index: 1):
aio:/var/xen/isos/ubuntu-11.04-server-amd64.iso
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
Log-dirty: no command yet.
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
vcpu-set: watch node error.
xs_read(/local/domain/20/log-throttling): read error
qemu: ignoring not-understood drive `/local/domain/20/log-throttling''
medium change watch on `/local/domain/20/log-throttling'' - unknown
device, ignored
cirrus vga map change while on lfb mode
mapping vram to f0000000 - f0400000
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro state.
Unknown PV product 3 loaded in guest
PV driver build 1
region type 1 at [c100,c200).
region type 0 at [f3001000,f3001100).
squash iomem [f3001000, f3001100).

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Why ubuntu as hvm domu and not pv?
I have installed Natty as pv, with official netinstall take here:
http://archive.ubuntu.com/ubuntu/dists/natty/main/installer-amd64/current/images/netboot/xen/
Have 2 problem on install solved:
On network interfaces detection failed select "go back" select execute
shell, insert this command:
modprobe xen-netfront
exit
select "Detect network hardware"
continue with normal install and at bootloader problem select to continue
without bootloader.
At install complete mount domu disk with -o loop on dom0 and create file for
pygrub, for example:
mkdir /mnt/tmp/boot/grub
vi /mnt/tmp/boot/grub/menu.lst #check always kernel version
----------------------------------------------------------
default         0
timeout         2

title           Natty 64 bit (Ubuntu 11.04)
root            (hd0,0)
kernel          /boot/vmlinuz-2.6.38-11-generic root=/dev/xvda1 ro 
initrd          /boot/initrd.img-2.6.38-11-generic

title           Natty 64 bit (Ubuntu 11.04) (Single-User)
root            (hd0,0)
kernel          /boot/vmlinuz-2.6.38-11-generic root=/dev/xvda1 ro single
initrd          /boot/initrd.img-2.6.38-11-generic
----------------------------------------------------------
Start the first time and solve the other problem, for example:
xm create NATTY.cfg
xm console NATTY.cfg
modprobe xen-blkfront
exit
# login and add xen modules
# Add in /etc/initramfs-tools/modules and /etc/modules:
----------------------------------------------------------
xen_netfront #Xen virtual network device frontend
xen_blkfront #Xen virtual block device frontend
xen_fbfront #Xen virtual framebuffer device frontend
xen_kbdfront #Xen virtual keyboard/pointer device frontend
----------------------------------------------------------
sudo update-initramfs -u
sudo reboot

You can also install grub2 without problem on domu active now:
sudo rm /boot/grub/menu.lst
sudo aptitude install grub
sudo update-grub

I have all working except 2 problem:

- Xen vnc pointer doesn''t work after restore

- Cdrom in cfg file, see example below:
disk=[''tap2:aio:/mnt/vm/disks/NATTY.disk1.xm,xvda1,w'',
''tap2:aio:/mnt/vm/disks/NATTY.disk2.xm,xvda2,w'',
''phy:/dev/scd0,xvdb:cdrom,r'']

is seen as internal disk and only administrator can mount it


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On Sep 21, 2011 1:08 AM, "Fantu" <fantonifabio@tiscali.it>
wrote:
>
> Why ubuntu as hvm domu and not pv?
I am trying out nested virtualization which is why I need it to be a HVM
domain.
> I have installed Natty as pv, with official netinstall take here:
>
http://archive.ubuntu.com/ubuntu/dists/natty/main/installer-amd64/current/images/netboot/xen/
> Have 2 problem on install solved:
> On network interfaces detection failed select "go back" select
execute
> shell, insert this command:
> modprobe xen-netfront
> exit
> select "Detect network hardware"
> continue with normal install and at bootloader problem select to continue
> without bootloader.
> At install complete mount domu disk with -o loop on dom0 and create file
for
> pygrub, for example:
> mkdir /mnt/tmp/boot/grub
> vi /mnt/tmp/boot/grub/menu.lst #check always kernel version
> ----------------------------------------------------------
> default         0
> timeout         2
>
> title           Natty 64 bit (Ubuntu 11.04)
> root            (hd0,0)
> kernel          /boot/vmlinuz-2.6.38-11-generic root=/dev/xvda1 ro
> initrd          /boot/initrd.img-2.6.38-11-generic
>
> title           Natty 64 bit (Ubuntu 11.04) (Single-User)
> root            (hd0,0)
> kernel          /boot/vmlinuz-2.6.38-11-generic root=/dev/xvda1 ro single
> initrd          /boot/initrd.img-2.6.38-11-generic
> ----------------------------------------------------------
> Start the first time and solve the other problem, for example:
> xm create NATTY.cfg
> xm console NATTY.cfg
> modprobe xen-blkfront
> exit
> # login and add xen modules
> # Add in /etc/initramfs-tools/modules and /etc/modules:
> ----------------------------------------------------------
> xen_netfront #Xen virtual network device frontend
> xen_blkfront #Xen virtual block device frontend
> xen_fbfront #Xen virtual framebuffer device frontend
> xen_kbdfront #Xen virtual keyboard/pointer device frontend
> ----------------------------------------------------------
Yes this will solve the issue if you are running a PV domain. I think
something similar is happening with the HVM domain. My guess is that the
11.04 kernel does not have the drivers for the disk adapter being exposed by
QEMU.
> sudo update-initramfs -u
> sudo reboot
>
> You can also install grub2 without problem on domu active now:
> sudo rm /boot/grub/menu.lst
> sudo aptitude install grub
> sudo update-grub
>
> I have all working except 2 problem:
>
> - Xen vnc pointer doesn''t work after restore
>
> - Cdrom in cfg file, see example below:
> disk=[''tap2:aio:/mnt/vm/disks/NATTY.disk1.xm,xvda1,w'',
> ''tap2:aio:/mnt/vm/disks/NATTY.disk2.xm,xvda2,w'',
> ''phy:/dev/scd0,xvdb:cdrom,r'']
>
> is seen as internal disk and only administrator can mount it
>
>
> --
> View this message in context:
http://xen.1045712.n5.nabble.com/Ubuntu-11-04-64-bit-HVM-on-xen-unstable-23842-tp4812413p4825514.html
> Sent from the Xen - User mailing list archive at Nabble.com.
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users

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