RE: [Xen-users] Xen 3.3 install from source on centos 5.2

["Robert Dunkley" <Robert@xxxxxxxxx>]

I seem to be able to migrate 32bit and 64bit HVMs on my 64bit Centos 5.2 Xen 
3.30 Dom 0s.

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Nemeth, Tamas
Sent: 01 October 2008 15:18
To: xen-users@xxxxxxxxxxxxxxxxxxx
Cc: David Brain
Subject: Re: [Xen-users] Xen 3.3 install from source on centos 5.2

Here are my experiences:

ïI use xen 3.2.1 (3.3.0 seems to be too buggy). The hypervisor is 64bit
(some servers have more than 16GB of RAM), but all domains (including
dom0) are 32bit PAE, because a 64bit dom0 - for example - can't migrate
a 32bitdomU, but a 32bit domU can migrate a 64bit domU, AFAIK. So,
accordint to my experiences, 32bit PAE domains (with the original
xen.org kernels, if you can afford it) running on a 64bit hypervisor
seem to be the best soulution to utilize a beast like your machine. Xen
3.2.1 seems to be fast, and reliable.

ïI compiled xen the following way:
I downloaded the linux-2.6.18-xen-3.2.0 kernel and xen-3.2.1 separately,
and then first, i compiled the kernel by:

gzip -dc /proc/config.gz
make menuconfig
<SOME CONFIGURATION, especially don't forget to set "Processor type and
features" -> "High Memory Support" to 64GB in order to make it a PAE
kernel>
make
<During the building process, i watch this video:
http://www.youtube.com/watch?v=PLyTrsk1Ey8>
make install
make modules_install
mkinitrd <IN SOME WAY>

After compiling and installing the kernel, I compiled and installed xen,
but I didn't do a "make world" at all!! I did it the following way:

On a 64 bit machine, or by cross-compiling (i've personally never
tried), I build the hypervisor:

make xen #this creates only the hypervisor (/boot/xen-3.2.1.gz)
ïmake install-xen
After installing, I copy the 64 bit hypervisor (/boot/xen-3.2.1.gz) to
the
32bit target dom0.

And finally I compile and install the tools on the (32bit, of course)
dom0:
make tools #this creates thigs like the xm command, hvm environment,
           #network scripts, etc.

make install-tools


Best regards,

Tamas

2008. 10. 1, szerda keltezÃssel 10.09-kor David Brain ezt Ãrta:
> Hi,
> 
> Are there any guides or pointers as to how to perform a 3.3 install  
> from source install on Centos 5.2?  I'm having some issues and would  
> really like to be able to find some docs on how this is supposed to be  
> done.
> 
> Thanks,
> 
> David.
> 
> 
> 
> 
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users


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