Greetings!
Trying to to run a xen3 domU on a xen4 dem0 I run into problems.
The xen server ''XEN1''(dom0) is openSUSE-11.3 (kernel 2.6.34)
and xen-4.0.1.
With qemu I created an image ''M08.raw'' from the SUSE-9.3
(kernel 2.6.11) and XEN-3.0 installation CD''s.
The XEN modules were included in the installation.
In M08.raw/boot I configured grub/menu.lst:
...
title XEN
kernel (hd0,1)/boot/vmlinuz-xen root=/dev/hda2 vga=0x314 selinux=0
splash=silent resume=/dev/hda1 showopts
module (hd0,1)/boot/initrd-xen
...
dumU configuration in /etc/xen/vm/M08:
bootloader = "/usr/bin/pygrub"
memory = 1024
name = "M08"
vcpus=1
disk = [ ''tap:aio:/var/lib/xen/images/M08/M08.raw,hda,w'' ]
vif=[ ''mac=00:16:3e:00:a0:08,bridge=br0'', ]
With
xm create -c M08
I get the following error:
XEN1:/etc/xen/vm # Error: (2, ''Invalid kernel'',
''elf_xen_note_check:
ERROR: Xen will only load images built for Xen v3.0\n'')
I do not uderstand the above error: the kernel to be loaded *is* a
xen-3.0 kernel and should be taken from domU:/boot.
Now I have the following questions:
1) Can I run xen-3 domU''s on a xen-4 dom0?
2) If yes (hope so :-), what''s wrong with the above install/config,
or what have I missed?
Thanks for reading and hints.
Wolf
_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users
Greetings!
Trying to to run a xen3 domU on a xen4 dem0 I run into problems.
The xen server ''XEN1''(dom0) is openSUSE-11.3 (kernel 2.6.34)
and xen-4.0.1.
With qemu I created an image ''M08.raw'' from the SUSE-9.3
(kernel 2.6.11) and XEN-3.0 installation CD''s.
The XEN modules were included in the installation.
In M08.raw/boot I configured grub/menu.lst:
...
title XEN
kernel (hd0,1)/boot/vmlinuz-xen root=/dev/hda2 vga=0x314 selinux=0
splash=silent resume=/dev/hda1 showopts
module (hd0,1)/boot/initrd-xen
...
dumU configuration in /etc/xen/vm/M08:
bootloader = "/usr/bin/pygrub"
memory = 1024
name = "M08"
vcpus=1
disk = [ ''tap:aio:/var/lib/xen/images/M08/M08.raw,hda,w'' ]
vif=[ ''mac=00:16:3e:00:a0:08,bridge=br0'', ]
With
xm create -c M08
I get the following error:
XEN1:/etc/xen/vm # Error: (2, ''Invalid kernel'',
''elf_xen_note_check:
ERROR: Xen will only load images built for Xen v3.0\n'')
I do not uderstand the above error: the kernel to be loaded *is* a
xen-3.0 kernel and should be taken from domU:/boot.
Now I have the following questions:
1) Can I run xen-3 domU''s on a xen-4 dom0?
2) If yes (hope so :-), what''s wrong with the above install/config,
or what have I missed?
Thanks for reading and hints.
Wolf
_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users
On Tue, Feb 8, 2011 at 2:17 PM, Wolf Grossi <wg@magro-soft.com> wrote:> Greetings! > > Trying to to run a xen3 domU on a xen4 dem0 I run into problems. > > The xen server ''XEN1''(dom0) is openSUSE-11.3 (kernel 2.6.34) and xen-4.0.1. > > With qemu I created an image ''M08.raw'' from the SUSE-9.3 > (kernel 2.6.11) and XEN-3.0 installation CD''s. > The XEN modules were included in the installation. > In M08.raw/boot I configured grub/menu.lst: > ... > title XEN > kernel (hd0,1)/boot/vmlinuz-xen root=/dev/hda2 vga=0x314 selinux=0 > splash=silent resume=/dev/hda1 showopts > module (hd0,1)/boot/initrd-xen > ... > > dumU configuration in /etc/xen/vm/M08: > > bootloader = "/usr/bin/pygrub" > memory = 1024 > name = "M08" > vcpus=1 > disk = [ ''tap:aio:/var/lib/xen/images/M08/M08.raw,hda,w'' ] > vif=[ ''mac=00:16:3e:00:a0:08,bridge=br0'', ] > > > With > xm create -c M08 > I get the following error: > > XEN1:/etc/xen/vm # Error: (2, ''Invalid kernel'', ''elf_xen_note_check: ERROR: > Xen will only load images built for Xen v3.0\n'') > > I do not uderstand the above error: the kernel to be loaded *is* a xen-3.0 > kernel and should be taken from domU:/boot. > > > > > Now I have the following questions: > 1) Can I run xen-3 domU''s on a xen-4 dom0? > 2) If yes (hope so :-), what''s wrong with the above install/config, > or what have I missed? >You need the "top" Xen version to run as an HVM guest on the bottom Xen. So, for your case, make your Xen3 Xen domU an HVM domain. That should work. Hope that helps. Thanks, Todd _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Tue, Feb 08, 2011 at 03:26:50PM +0000, Todd Deshane wrote:> On Tue, Feb 8, 2011 at 2:17 PM, Wolf Grossi <wg@magro-soft.com> wrote: > > Greetings! > > > > Trying to to run a xen3 domU on a xen4 dem0 I run into problems. > >...> > With > > xm create -c M08 > > I get the following error: > > > > XEN1:/etc/xen/vm # Error: (2, ''Invalid kernel'', ''elf_xen_note_check: ERROR: > > Xen will only load images built for Xen v3.0\n'') > > > > I do not uderstand the above error: the kernel to be loaded *is* a xen-3.0 > > kernel and should be taken from domU:/boot. > > > > Now I have the following questions: > > 1) Can I run xen-3 domU''s on a xen-4 dom0?Yes. I am running a Debian Squeeze Xen 4.0.1 Hypervisor and 2.6.32-5-xen-amd64 dom0. On that I run a couple of older PVM machines that have an 2.6.26-2-xen-686 kernel. That is a 32bit kernel compiled for xen 3.2-1. Tomorrow I''ll try to get my old Etch VMs there too. (2.6.18 32bit domU made for Xen 3.0.3)> > 2) If yes (hope so :-), what''s wrong with the above install/config, > > or what have I missed?I guess your pygrub doesn''t find the right kernel on your VM''s disk image. Try to mount the image in dom0, copy the kernel and initrd to /boot/foo/ Edit your config file /etc/xen/vm/M08 and replace bootloader = ''/usr/lib/xen-default/bin/pygrub'' with #bootloader = ''/usr/lib/xen-default/bin/pygrub'' root = ''/boot/foo/vmlinuz-blah'' ramdisk= ''/boot/foo/initrd-blah'' Don''t forget to umount the VM''s disk image and try again xm create /etc/xen/vm/M08 Good luck :-)> > You need the "top" Xen version to run as an HVM guest on the bottom > Xen. So, for your case, make your Xen3 Xen domU an HVM domain. That > should work. > > Hope that helps. > > Thanks, > ToddAFAIK pygrub is only for PVM, isn''t it? So I assume that Wolf tries to get an older PVM guest to run on a relatively recent hypervisor/dom0 cheers -henrik _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Wed, Feb 09, 2011 at 02:17:10PM +0100, Wolfgang Grossbauer wrote:> On 08.02.2011 17:26, Henrik Langos wrote: >> On Tue, Feb 08, 2011 at 03:26:50PM +0000, Todd Deshane wrote: >>> On Tue, Feb 8, 2011 at 2:17 PM, Wolf Grossi<wg@magro-soft.com> wrote: >>>> Greetings! >>>> >>>> Trying to to run a xen3 domU on a xen4 dem0 I run into problems. >>>> >> ... >>>> With >>>> xm create -c M08 >>>> I get the following error: >>>> >>>> XEN1:/etc/xen/vm # Error: (2, ''Invalid kernel'', ''elf_xen_note_check: ERROR: >>>> Xen will only load images built for Xen v3.0\n'') >>>> >>>> I do not uderstand the above error: the kernel to be loaded *is* a xen-3.0 >>>> kernel and should be taken from domU:/boot. >>>> >>>> Now I have the following questions: >>>> 1) Can I run xen-3 domU''s on a xen-4 dom0? >> >> Yes. I am running a Debian Squeeze Xen 4.0.1 Hypervisor and 2.6.32-5-xen-amd64 dom0. >> >> On that I run a couple of older PVM machines that have an 2.6.26-2-xen-686 kernel. >> That is a 32bit kernel compiled for xen 3.2-1. >> >> Tomorrow I''ll try to get my old Etch VMs there too. (2.6.18 32bit domU made for Xen 3.0.3) >> >>>> 2) If yes (hope so :-), what''s wrong with the above install/config, >>>> or what have I missed? >> >> I guess your pygrub doesn''t find the right kernel on your VM''s disk image. >> >> Try to mount the image in dom0, copy the kernel and initrd to /boot/foo/ >> >> Edit your config file /etc/xen/vm/M08 and replace >> >> bootloader = ''/usr/lib/xen-default/bin/pygrub'' >> >> with >> >> #bootloader = ''/usr/lib/xen-default/bin/pygrub'' >> root = ''/boot/foo/vmlinuz-blah'' >> ramdisk= ''/boot/foo/initrd-blah'' >> >> Don''t forget to umount the VM''s disk image and try again >> xm create /etc/xen/vm/M08 >> >> Good luck :-) >> >>> >>> You need the "top" Xen version to run as an HVM guest on the bottom >>> Xen. So, for your case, make your Xen3 Xen domU an HVM domain. That >>> should work. >>> >>> Hope that helps. >>> >>> Thanks, >>> Todd >> >> AFAIK pygrub is only for PVM, isn''t it? So I assume that Wolf tries >> to get an older PVM guest to run on a relatively recent hypervisor/dom0 >> >> cheers >> -henrik >> > > > Yes, exactly; > I''m trying to run a xen3 paravirt guest (32 Bit) > on a xen4 (64 Bit).I am doing the same thing here. It even works with _very_ old 2.6.18 kernels made for xen 3.0.3. Tried it yesterday and it works like a charm.> I applied your suggestions, however still the same problem: > > xm create M08 > Using config file "/etc/xen/vm/M08". > Error: (2, ''Invalid kernel'', ''elf_xen_note_check: ERROR: Xen will only > load images built for Xen v3.0\n'') > > > M08 config for xm: > --- > root = ''/boot/vmlinuz-2.6.11.4-20a-xen'' > ramdisk= ''/boot/initrd-2.6.11.4-20a-xen'' > disk= [ ''file:/root/M08.raw,xvda,w'' ] > ---Aaaaahhh. My bad! It is not "root" but "kernel". It should have been kernel = ''/boot/vmlinuz-foo'' ramdisk= ''/boot/initrd-foo'' root = ''/dev/xvda2 ro'' disk= [ ''file:/root/M08.raw,xvda,w'' ] But wait a second ... 2.6.11 ??? What is this? The dark ages? ;-) I am pretty sure that 2.6.11 was not a xen 3 kernel. cheers -henrik PS: Please use "reply-to-all" to have your reply also on the list. Maybe somebody else will find this in the mailing list archive before trying to run a 2.6.11 linux on a 4.0 hypervisor. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On 10.02.2011 06:19, Henrik Langos wrote:> On Wed, Feb 09, 2011 at 02:17:10PM +0100, Wolfgang Grossbauer wrote: >> On 08.02.2011 17:26, Henrik Langos wrote: >>> On Tue, Feb 08, 2011 at 03:26:50PM +0000, Todd Deshane wrote: >>>> On Tue, Feb 8, 2011 at 2:17 PM, Wolf Grossi<wg@magro-soft.com> wrote: >>>>> Greetings! >>>>> >>>>> Trying to to run a xen3 domU on a xen4 dem0 I run into problems. >>>>> >>> ... >>>>> With >>>>> xm create -c M08 >>>>> I get the following error: >>>>> >>>>> XEN1:/etc/xen/vm # Error: (2, ''Invalid kernel'', ''elf_xen_note_check: ERROR: >>>>> Xen will only load images built for Xen v3.0\n'') >>>>> >>>>> I do not uderstand the above error: the kernel to be loaded *is* a xen-3.0 >>>>> kernel and should be taken from domU:/boot. >>>>> >>>>> Now I have the following questions: >>>>> 1) Can I run xen-3 domU''s on a xen-4 dom0? >>> >>> Yes. I am running a Debian Squeeze Xen 4.0.1 Hypervisor and 2.6.32-5-xen-amd64 dom0. >>> >>> On that I run a couple of older PVM machines that have an 2.6.26-2-xen-686 kernel. >>> That is a 32bit kernel compiled for xen 3.2-1. >>> >>> Tomorrow I''ll try to get my old Etch VMs there too. (2.6.18 32bit domU made for Xen 3.0.3) >>> >>>>> 2) If yes (hope so :-), what''s wrong with the above install/config, >>>>> or what have I missed? >>> >>> I guess your pygrub doesn''t find the right kernel on your VM''s disk image. >>> >>> Try to mount the image in dom0, copy the kernel and initrd to /boot/foo/ >>> >>> Edit your config file /etc/xen/vm/M08 and replace >>> >>> bootloader = ''/usr/lib/xen-default/bin/pygrub'' >>> >>> with >>> >>> #bootloader = ''/usr/lib/xen-default/bin/pygrub'' >>> root = ''/boot/foo/vmlinuz-blah'' >>> ramdisk= ''/boot/foo/initrd-blah'' >>> >>> Don''t forget to umount the VM''s disk image and try again >>> xm create /etc/xen/vm/M08 >>> >>> Good luck :-) >>> >>>> >>>> You need the "top" Xen version to run as an HVM guest on the bottom >>>> Xen. So, for your case, make your Xen3 Xen domU an HVM domain. That >>>> should work. >>>> >>>> Hope that helps. >>>> >>>> Thanks, >>>> Todd >>> >>> AFAIK pygrub is only for PVM, isn''t it? So I assume that Wolf tries >>> to get an older PVM guest to run on a relatively recent hypervisor/dom0 >>> >>> cheers >>> -henrik >>> >> >> >> Yes, exactly; >> I''m trying to run a xen3 paravirt guest (32 Bit) >> on a xen4 (64 Bit). > > I am doing the same thing here. It even works with _very_ old 2.6.18 kernels > made for xen 3.0.3. Tried it yesterday and it works like a charm. > >> I applied your suggestions, however still the same problem: >> >> xm create M08 >> Using config file "/etc/xen/vm/M08". >> Error: (2, ''Invalid kernel'', ''elf_xen_note_check: ERROR: Xen will only >> load images built for Xen v3.0\n'') >> >> >> M08 config for xm: >> --- >> root = ''/boot/vmlinuz-2.6.11.4-20a-xen'' >> ramdisk= ''/boot/initrd-2.6.11.4-20a-xen'' >> disk= [ ''file:/root/M08.raw,xvda,w'' ] >> --- > > Aaaaahhh. My bad! It is not "root" but "kernel". > > It should have been > > kernel = ''/boot/vmlinuz-foo'' > ramdisk= ''/boot/initrd-foo'' > root = ''/dev/xvda2 ro'' > disk= [ ''file:/root/M08.raw,xvda,w'' ] > > But wait a second ... 2.6.11 ??? What is this? The dark ages? ;-) > > I am pretty sure that 2.6.11 was not a xen 3 kernel. > > cheers > -henrik > > PS: Please use "reply-to-all" to have your reply also on the list. > Maybe somebody else will find this in the mailing list archive > before trying to run a 2.6.11 linux on a 4.0 hypervisor. > >Henrik, thanks a lot for your time! Yes, you are right, it''s a xen-2.something kernel. So I guess I have to consider other alternatives (like dump that old stuff :-) . Wolf _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users