Fedora xen - Sep 2007 - Creating and installing Centos under virt-manager

All working a treat: created the guest (fully virtualised - I have no
time for Xen), setup disk space in a 6Gb file, gave it a name, and
pointed the installation source to be the first of 6 .iso files for
Centos 5 installation

......then it asks for the second CDRom!

How the blazes is one supposed to tell it where to get the file?

I''m completely stuck! I thought this was supposed to work with .iso
files and I wouldn''t have to burn 6 CDs. But what happens now?

JDL

John Lagrue wrote:
> All working a treat: created the guest (fully virtualised - I have no
> time for Xen), setup disk space in a 6Gb file, gave it a name, and
> pointed the installation source to be the first of 6 .iso files for
> Centos 5 installation
> 
> ......then it asks for the second CDRom!
> 
> How the blazes is one supposed to tell it where to get the file?
> 
> I''m completely stuck! I thought this was supposed to work with
.iso
> files and I wouldn''t have to burn 6 CDs. But what happens now?
>
Last I read, the ability to change CD was "planned for the future."

You''re better off using the DVD image. If you can find a .jigdo file
and
template (I think CentOS does it), then you don''t have to download much
of CentOS 5 again.

Or do a network install: nfs should work really well over a virtual LAN.



-- 

Cheers
John

-- spambait
1aaaaaaa@coco.merseine.nu  Z1aaaaaaa@coco.merseine.nu

Please do not reply off-list

or create a DVD .iso file from the 6 CDs. I have instructions on my 
website, www.certifried.com

John Summerfield wrote:
> John Lagrue wrote:
>> All working a treat: created the guest (fully virtualised - I have no
>> time for Xen), setup disk space in a 6Gb file, gave it a name, and
>> pointed the installation source to be the first of 6 .iso files for
>> Centos 5 installation
>>
>> ......then it asks for the second CDRom!
>>
>> How the blazes is one supposed to tell it where to get the file?
>>
>> I''m completely stuck! I thought this was supposed to work with
.iso
>> files and I wouldn''t have to burn 6 CDs. But what happens now?
>>
> Last I read, the ability to change CD was "planned for the
future."
>
> You''re better off using the DVD image. If you can find a .jigdo
file
> and template (I think CentOS does it), then you don''t have to
download
> much of CentOS 5 again.
>
> Or do a network install: nfs should work really well over a virtual LAN.
>
>
>

A network install is the best option but you can always add and remove
devices using virsh

Have a look in the man page for virsh at attach-disk and detach-disk 



On Fri, 2007-09-21 at 22:36 -0400, Mark Nielsen wrote:
> or create a DVD .iso file from the 6 CDs. I have instructions on my 
> website, www.certifried.com
> 
> John Summerfield wrote:
> > John Lagrue wrote:
> >> All working a treat: created the guest (fully virtualised - I have
no
> >> time for Xen), setup disk space in a 6Gb file, gave it a name, and
> >> pointed the installation source to be the first of 6 .iso files
for
> >> Centos 5 installation
> >>
> >> ......then it asks for the second CDRom!
> >>
> >> How the blazes is one supposed to tell it where to get the file?
> >>
> >> I''m completely stuck! I thought this was supposed to work
with .iso
> >> files and I wouldn''t have to burn 6 CDs. But what happens
now?
> >>
> > Last I read, the ability to change CD was "planned for the
future."
> >
> > You''re better off using the DVD image. If you can find a
.jigdo file
> > and template (I think CentOS does it), then you don''t have to
download
> > much of CentOS 5 again.
> >
> > Or do a network install: nfs should work really well over a virtual
LAN.
> >
> >
> >
> 
> --
> Fedora-xen mailing list
> Fedora-xen@redhat.com
> https://www.redhat.com/mailman/listinfo/fedora-xen


Andrew Cathrow
Red Hat, Inc.

(678) 733 0452 - Mobile
(404) 437 6178 - Home Office

acathrow@redhat.com

Andrew Cathrow wrote:
> A network install is the best option but you can always add and remove 
> devices using virsh
> 
> Have a look in the man page for virsh at attach-disk and detach-disk
> 
> 
> 
> On Fri, 2007-09-21 at 22:36 -0400, Mark Nielsen wrote:
>> or create a DVD .iso file from the 6 CDs. I have instructions on my 
>> website, www.certifried.com <http://www.certifried.com>
>>
>> John Summerfield wrote:
>> > John Lagrue wrote:
>> >> All working a treat: created the guest (fully virtualised - I
have no
>> >> time for Xen), setup disk space in a 6Gb file, gave it a name,
and
>> >> pointed the installation source to be the first of 6 .iso
files for
>> >> Centos 5 installation
>> >>
>> >> ......then it asks for the second CDRom!
>> >>
>> >> How the blazes is one supposed to tell it where to get the
file?
>> >>
>> >> I''m completely stuck! I thought this was supposed to
work with .iso
>> >> files and I wouldn''t have to burn 6 CDs. But what
happens now?
>> >>
>> > Last I read, the ability to change CD was "planned for the
future."
>> >
>> > You''re better off using the DVD image. If you can find a
.jigdo file
>> > and template (I think CentOS does it), then you don''t
have to download
>> > much of CentOS 5 again.
>> >
>> > Or do a network install: nfs should work really well over a
virtual LAN.
If you don''t mind the bleeding edge, the latest release of libvirt 
supports connecting and disconnecting cdrom backing devices (or isos) 
from a fullvirt xen guest. The xen guest must have a cdrom device with 
no "source" line in its xml definition (unfortunately we
don''t support
this with KVM yet although we plan to soon). If you call "virsh 
attach-device <domain> <device.xml>" where
"device.xml" is an xml file
with a complete device definition like so:

     <disk type=''block''
device=''cdrom''>
       <source dev=''/dev/cdrom''/>
       <target dev=''hdc''/>
       <readonly/>
     </disk>

then libvirt will attach your host cdrom device to the guest''s cdrom 
device. Then to disconnect the cdrom, call "virsh attach-device
<domain>
<device.xml>" where "device.xml" is an xml file like the
above, but with
no "source" element.

The upcoming release of virt-manager (should be out today if it isn''t 
already) has UI that supports this capability. Again, to be clear, this 
only works for fully virtualized Xen guests at the moment; we''re
working
on adding it to kvm but have no idea when that will be available.

Hope this helps somewhat.

Take care,
--Hugh

-- 
Red Hat Virtualization Group http://redhat.com/virtualization
Hugh Brock           | virt-manager http://virt-manager.org
hbrock@redhat.com    | virtualization library http://libvirt.org

On Sat, Sep 22, 2007 at 08:09:22AM +0800, John Summerfield
wrote:
> John Lagrue wrote:
> >All working a treat: created the guest (fully virtualised - I have no
> >time for Xen), setup disk space in a 6Gb file, gave it a name, and
> >pointed the installation source to be the first of 6 .iso files for
> >Centos 5 installation
> >
> >......then it asks for the second CDRom!
> >
> >How the blazes is one supposed to tell it where to get the file?
> >
> >I''m completely stuck! I thought this was supposed to work with
.iso
> >files and I wouldn''t have to burn 6 CDs. But what happens now?
> >
> Last I read, the ability to change CD was "planned for the
future."
Latest upstream libvirt & virt-manager now has support for this on Xen.
The support for KVM will be coming soon too. I hope to get it into 
Fedora 8, and then subsquently it''ll be in a Fedora 7 update. In the
meantime our recommendation is to use the ''images/boot.iso''
from the
install tree, and then point it at an NFS/HTTP/FTP location for the
main package install stage.
> Or do a network install: nfs should work really well over a virtual LAN.
Yep, NFS or HTTP will work. NFS is slighty better if you have limited
memory in the guest, since it can execute-in-place, while HTTP needs to
use 60 MB or so of RAM just to hold the installer download.

Dan.
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