Re: [Efw-user] xen or network install help

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----- Original Message -----
From: "Marz" <ma...@gu...>
To: efw...@li...
Sent: 31 July 2007 21:22:26 o'clock (GMT+0100) Europe/Berlin
Subject: Re: [Efw-user] xen or network install help

Bill Pye wrote:
> Hi all
> 
> Could someone help me with answers to a couple of questions?
> 
> I like to do installs on my machines via pxe so I wondered if it is possible to install efw via a network install rather than burning a cd each upgrade? Normally I'd just extract the iso data to a directory on an ftp server but the efw iso doesn't seem to want to install via that method. I'm still fairly new to linux and don't know much about creating a directory that can be booted/installed, what's need to do this for efw?
> 
> I'm also just starting to test xen and would like to consolidate several machines onto one server but I have a need for a para-virtualized install on a centos5 server. I don't think it's possible to boot a cd in xen unless it's s fully virtualized system, someone please correct me if I'm wrong.
> 
> I'm at a total loss as to how I get efw into a xen into a para-virtualized domU, I've tried following the instructions on neobiker's wiki but as it's for a different distribution it's lost on me.
> 
> I'd appreciate some pointers to any instructions, help, advice or general installation instructions for my type of set-up?
> 
> TIA
> 
> regards
> 
> Bill
> 
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Hi Bill, (at first sorry for my crappy English!)

Maybe I can help you with Xen. I did it this way:

At first install Vmware or Virtual Box on your Workstation. Mount the
EFW iso Image as a CD Drive an istall it (not the Xen Kernel!).

When you are finish with this reboot the VM an login as root. Now you
have to find a way to move this installation to the Dom0. I simply
created the directory /tar and put all the files into an Archive.

for example:
$tar -cSp --numeric-owner --atime-preserve -f /tar/efw.tar /

I took scp to copy this to Dom0.

$scp /tar/efw.tar root@192.168.1.1:~

In the Dom0 you have to extract the EFW to your DomU partition. I use LVM.

$mount /dev/vg0/efw /mnt/efw
$cd /mnt/efw
$tar -xSpv --atime-preserve -f /root/efw.tar

Next install the xen kernel.

$chroot /mnt/efw
$rpm -Uvh kernel-xenU-2.6.9-55.EL.endian19.i386.rpm --nodeps
$exit #(leave the chroot)

(I get the rpm form here
http://downloads.sourceforge.net/efw/EFW-COMMUNITY-2.1.1-devel-RPMS.tar.bz2)

To boot the efw as a domU you have to copy the vmlinuz and the initrd.
$cp /mnt/efw/boot/initrd-2.6.9-55.EL.endian19-xenU.img /boot
$cp /mnt/efw/boot/vmlinuz-2.6.9-55.EL.endian19-xenU /boot

The last thing is the DomU config. This is my one:

#  -*- mode: python; -*-
kernel = "/boot/vmlinuz-2.6.9-55.EL.endian19-xenU"
ramdisk = "/boot/initrd-2.6.9-55.EL.endian19-xenU.img"
memory = 128
name = "domU_efw"
vif = [ 'bridge=xenbr0', 'bridge=xenbr1', 'bridge=xenbr2' ]
#pci = [ '02:05.0' ] I look forward when this will work!
disk = ['phy:/dev/vg0/efw,hda1,w','phy:/dev/vg0/efw-swap,hda2,w']
root = "/dev/hda1 ro"

Any further questions? ;)

Marz

Hi Marz

Thank you for that very detailed post, that seems to be just what I'm after. I have VMware server on one of my machines so I'll use that. Unfortunately work commitments mean I probably won't be able to get to try it until the week-end (maybe early next week). I'll let you know how I get on with that and if I have any problems. I've been playing around with xen for the past couple of week, it seems like I've read the whole internet looking for information. I think I understand most of what you've posted.

I'm sure some questions will arise so I'll be back, if you don't mind? 

Thanks again for the post. Your English is excellent. :)

Regards

Bill

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