dom0 problems

Hello,
I ma trying to start a dom0 FreeBSD with Xen 3

I am using xenkernel30-3.0.3

which kernel I have to boot with it ?

here is my grub:

title Xen 3.0.3 / NetBSD (hda0, vga)
   root(hd0,0)
   kernel (hd0,a)/xen.gz dom0_mem=1048576
   module (hd0,a)/netbsd-XEN3_DOM0 root=/dev/hda1 ro
console=tty0


I took netbsd-XEN3_DOM0 from
ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-daily/HEAD/2007060500
02Z

but the problem is that it won't boot.

Which kernel can I use and where I can get it ?

thanks

Rick

On Wed, Jun 06, 2007 at 12:14:50PM -0600, RJ45 wrote:
> 
> 
> Hello,
> I ma trying to start a dom0 FreeBSD with Xen 3
> 
> I am using xenkernel30-3.0.3
> 
> which kernel I have to boot with it ?
> 
> here is my grub:
> 
> title Xen 3.0.3 / NetBSD (hda0, vga)
>   root(hd0,0)
>   kernel (hd0,a)/xen.gz dom0_mem=1048576
>   module (hd0,a)/netbsd-XEN3_DOM0 root=/dev/hda1 ro
console=tty0
> 
> 
> I took netbsd-XEN3_DOM0 from
>
ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-daily/HEAD/2007060500
02Z
> 
> but the problem is that it won't boot.

What problem are you seeing exactly ? It boots fine for me.

-- 
Manuel Bouyer <bouyerantioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la
difference
--

grub does not accept xen.gz

I had to uncompress it first, and then it works now.
But I did not find this information i nthe NetBSD/Xen how
to
so I Discovered it lookign at the grub version and I have
been thinking
it was not supporting compressed images.
So I tried to uncompress it.
is it normal the kernel version 4 ???

NetBSD 4.99.20 (XEN3_DOM0) #0: Tue Jun 5 20:20:41 PDT 2007

is it stable enough to use in production environment ?
I want to implelent a nameserver.

thank you very much


Rick



On Wed, 6 Jun 2007, Manuel Bouyer wrote:

> On Wed, Jun 06, 2007 at 12:14:50PM -0600, RJ45 wrote:
>>
>>
>> Hello,
>> I ma trying to start a dom0 FreeBSD with Xen 3
>>
>> I am using xenkernel30-3.0.3
>>
>> which kernel I have to boot with it ?
>>
>> here is my grub:
>>
>> title Xen 3.0.3 / NetBSD (hda0, vga)
>>   root(hd0,0)
>>   kernel (hd0,a)/xen.gz dom0_mem=1048576
>>   module (hd0,a)/netbsd-XEN3_DOM0 root=/dev/hda1 ro
console=tty0
>>
>>
>> I took netbsd-XEN3_DOM0 from
>>
ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-daily/HEAD/2007060500
02Z
>>
>> but the problem is that it won't boot.
>
> What problem are you seeing exactly ? It boots fine for
me.
>
> -- 
> Manuel Bouyer <bouyerantioche.eu.org>
>     NetBSD: 26 ans d'experience feront toujours la
difference
> --
>

your answer is provocative.
I was only asking help.
Of course as you may imagine I misstyped NetBSD with FReeBSD
for mistake.

Anyway I could boot NetBSD/Xen but I am using a daily
snapshot kernel.
Any more stable kernel version I could use ?
I would kike to use NetBSD/Xen in a production environment.
thanks

Rick


On Wed, 6 Jun 2007, david l goodrich wrote:

> On Wed, June 6, 2007 1:14 pm, RJ45 wrote:
>>
>>
>> Hello,
>> I ma trying to start a dom0 FreeBSD with Xen 3
>>
>> I am using xenkernel30-3.0.3
>>
>> which kernel I have to boot with it ?
>>
>> here is my grub:
>>
>> title Xen 3.0.3 / NetBSD (hda0, vga)
>>    root(hd0,0)
>>    kernel (hd0,a)/xen.gz dom0_mem=1048576
>>    module (hd0,a)/netbsd-XEN3_DOM0 root=/dev/hda1
ro console=tty0
>>
>>
>> I took netbsd-XEN3_DOM0 from
>>
ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-daily/HEAD/2007060500
02Z
>>
>> but the problem is that it won't boot.
>>
>> Which kernel can I use and where I can get it ?
>
>
> explain once more to the class how you think you'll
boot a FreeBSD dom0
> with a NetBSD kernel.
>  --david
>
>
>

On Thu, Jun 07, 2007 at 01:55:36AM -0600, RJ45 wrote:
> 
> 
> grub does not accept xen.gz
> 
> I had to uncompress it first, and then it works now.

Strange. I always use compressed kernels with xen.

> But I did not find this information i nthe NetBSD/Xen
how to
> so I Discovered it lookign at the grub version and I
have been thinking
> it was not supporting compressed images.
> So I tried to uncompress it.
> is it normal the kernel version 4 ???

Yes, it's netbsd-current (4.99 these days, will become 5.0
when it's decided
it's good enough).

> 
> NetBSD 4.99.20 (XEN3_DOM0) #0: Tue Jun 5 20:20:41 PDT
2007
> 
> is it stable enough to use in production environment ?

For production I would use netbsd-4 instead of current
(NetBSD-daily/netbsd-4/ instead of NetBSD-daily/HEAD).

-- 
Manuel Bouyer, LIP6, Universite Paris VI.          
Manuel.Bouyerlip6.fr
     NetBSD: 26 ans d'experience feront toujours la
difference
--

I see that current supports SMP on Xen DOM0
also NetBSD 4 does ?
thanks a lot

Rick


On Thu, 7 Jun 2007, Manuel Bouyer wrote:

> On Thu, Jun 07, 2007 at 01:55:36AM -0600, RJ45 wrote:
>>
>>
>> grub does not accept xen.gz
>>
>> I had to uncompress it first, and then it works
now.
>
> Strange. I always use compressed kernels with xen.
>
>> But I did not find this information i nthe
NetBSD/Xen how to
>> so I Discovered it lookign at the grub version and
I have been thinking
>> it was not supporting compressed images.
>> So I tried to uncompress it.
>> is it normal the kernel version 4 ???
>
> Yes, it's netbsd-current (4.99 these days, will become
5.0 when it's decided
> it's good enough).
>
>>
>> NetBSD 4.99.20 (XEN3_DOM0) #0: Tue Jun 5 20:20:41
PDT 2007
>>
>> is it stable enough to use in production
environment ?
>
> For production I would use netbsd-4 instead of current
> (NetBSD-daily/netbsd-4/ instead of NetBSD-daily/HEAD).
>
> -- 
> Manuel Bouyer, LIP6, Universite Paris VI.          
Manuel.Bouyerlip6.fr
>     NetBSD: 26 ans d'experience feront toujours la
difference
> --
>

On Thu, Jun 07, 2007 at 04:06:35AM -0600, RJ45 wrote:
> 
> I see that current supports SMP on Xen DOM0

not really. It supports running Xen on SMP hosts, and xen
can schedule
different domains on different CPUs (or run SMP guests if
the guest
supports it - e.g. linux). But NetBSD as dom0 won't use more
than one CPU
at this time.

> also NetBSD 4 does ?

NetBSD 4 has the same level of support for SMP.

-- 
Manuel Bouyer, LIP6, Universite Paris VI.          
Manuel.Bouyerlip6.fr
     NetBSD: 26 ans d'experience feront toujours la
difference
--

On Thu, 7 Jun 2007, Manuel Bouyer wrote:

> not really. It supports running Xen on SMP hosts, and
xen can schedule
> different domains on different CPUs (or run SMP guests
if the guest
> supports it - e.g. linux). But NetBSD as dom0 won't use
more than one CPU
> at this time.
>
Well this is good, this is what I need.
May I run a NetBSD 4/Xen  kernel upon a NetBSD 3 Release
install 
binaries ?
I Started from a NetBSD 3 Release base install.
is it correct ?

save and restore and migration on a paravirtualized
environment
is supported on NetBSD/Xen ?

thanks for all


Rick


>> also NetBSD 4 does ?
>
> NetBSD 4 has the same level of support for SMP.
>
> -- 
> Manuel Bouyer, LIP6, Universite Paris VI.          
Manuel.Bouyerlip6.fr
>     NetBSD: 26 ans d'experience feront toujours la
difference
> --
>

On Thu, Jun 07, 2007 at 04:34:53AM -0600, RJ45 wrote:
> 
> 
> On Thu, 7 Jun 2007, Manuel Bouyer wrote:
> 
> >not really. It supports running Xen on SMP hosts,
and xen can schedule
> >different domains on different CPUs (or run SMP
guests if the guest
> >supports it - e.g. linux). But NetBSD as dom0 won't
use more than one CPU
> >at this time.
> >
> Well this is good, this is what I need.
> May I run a NetBSD 4/Xen  kernel upon a NetBSD 3
Release install 
> binaries ?
> I Started from a NetBSD 3 Release base install.
> is it correct ?

It should work but a few things may not work properly
(especially things
that get statistics from the kernel like vmstat, netstat,
etc ...).
I would recommend upgrading the userland to netbsd-4 too.

> 
> save and restore and migration on a paravirtualized
environment
> is supported on NetBSD/Xen ?

Not yet.

-- 
Manuel Bouyer, LIP6, Universite Paris VI.          
Manuel.Bouyerlip6.fr
     NetBSD: 26 ans d'experience feront toujours la
difference
--

Do you forseen a support for good features like save and
restore
or migration in hte few next month ?
I would like to use NetBSD/Xen instead of RedHat/Xen

anyway thanks and compliments for the great work on
NetBSD/Xen

NetBSD is the only one BSD right now to support DOM0
feature

Rick


On Thu, 7 Jun 2007, Manuel Bouyer wrote:

> On Thu, Jun 07, 2007 at 04:34:53AM -0600, RJ45 wrote:
>>
>>
>> On Thu, 7 Jun 2007, Manuel Bouyer wrote:
>>
>>> not really. It supports running Xen on SMP
hosts, and xen can schedule
>>> different domains on different CPUs (or run SMP
guests if the guest
>>> supports it - e.g. linux). But NetBSD as dom0
won't use more than one CPU
>>> at this time.
>>>
>> Well this is good, this is what I need.
>> May I run a NetBSD 4/Xen  kernel upon a NetBSD 3
Release install
>> binaries ?
>> I Started from a NetBSD 3 Release base install.
>> is it correct ?
>
> It should work but a few things may not work properly
(especially things
> that get statistics from the kernel like vmstat,
netstat, etc ...).
> I would recommend upgrading the userland to netbsd-4
too.
>
>>
>> save and restore and migration on a paravirtualized
environment
>> is supported on NetBSD/Xen ?
>
> Not yet.
>
> -- 
> Manuel Bouyer, LIP6, Universite Paris VI.          
Manuel.Bouyerlip6.fr
>     NetBSD: 26 ans d'experience feront toujours la
difference
> --
>