[Fedora-xen] Running FC4 on FC5

[Robert Mortimer]

Dear Robert

First of all, I've had the same questions and problems as you have now. This
style of none documentation by the fedora team is just a shame for the whole
open source community! Probably Jeremy Katz is too busy by meeting his new
board members friends, so that he has no more time to write just a little
documentation with explanations, not just a unusable mini mini howto.

What the big problem is behind the FC5 and Xen implementation is, that the
xen guys at fedora have no idea what SELinux is doing. So, finally they made
an implementation of xen and SELinux that is not usable. If you don't want
to spend two weeks configuring your SELinux, you have to decide, if you use
in future SELinux or Xen (By the way, the same issues you have with httpd
and SELinux).

So my personal proposal is, that you just disable SELinux wherever you find
it on your FC5 installation. After disabling SELinux (you have to reboot so
that everything works fine, => Oh I like this old nice M$ Win95 style of
system management) you can use your xen config as you posted in your mail.

With the xenguest-install.py script you can't install FC4 or another
distribution, because the FC5 guys made an adaptation of the anaconda system
installer. By the way, this is a nice feature, because you can now kickstart
your FC5 installation.

If you want to install a new non FC5 guest, do it in the old style. Create
your devices with LVM and perform a yum groupinstall
with --installdir=yourdevice.

 The Point is I have done this I have FC4 images. I have copied the fc4 domU
kernel and modules to the Dom0 and still I can not find a config that boots

As you can see, Fedora Core 5 is a typical example for bad IT Management.
They tried to do a lot of thing in a short time. So several teams worked on
different things and now, nothing really fits together. The whole
implementation of the SELinux is a disaster. So for professional use, you
have to go back to Fedora Core 4. Also because the oracle stuff is not
working with the new glibc (it's not possible to start the listener... :-().
I by myself have to use FC5, because I need to kickstart my xen installation
and need apache 2.2. If you don't need those features, use CentOS or the
original RHES.

Hope I gave you the right hints.


bye Philipp



===============================================
Philipp Jäggi
SNCT Sandweiler
bp 23
L-5230 Sandweiler

+352 35'72'14'342





      "Robert Mortimer" <rmortimer at bluechiptechnology.co.uk>
      Sent by: fedora-xen-bounces at redhat.com
      04/18/2006 04:22 PM
     To <fedora-xen at redhat.com>
            cc
            Subject [Fedora-xen] Running FC4 on FC5








I am attempting to run an FC4 image on an FC5 machine
I have prepped the image as per the FC4 quick start
my xen config is as follows

kernel ="/boot/vmlinuz-2.6.13-1.1532_FC4xenU"
memory = 100
name = "vm01"
vcpus = 1
vif= ['mac=FE:FD:25:63:74:49']
disk = [ 'file:/root/VM/fedora.img,sda1,w' ]
root = "/dev/sda1"
extra = "ro selinux=0 3"

All I get is

# xm create vm01
Using config file "vm01".
Error: Error creating domain: (22, 'Invalid argument')
Has anyone got a simple 1 NIC guest config for FC4 on FC5

I see that the new FC5 uses
An init image as part of the boot
A python based boot loader
and a python based install script

Is there any way to hack this lot to do an install like the FC5/FC5 one?
How are the init images built?
Will the new installer do other guest OS's in the future?

Robert

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