[Xen-users] centos5 guest in opensuse 10.2 with lvm - solved

[mark pryor <tlviewer@xxxxxxxxx>]

Schober Walter <Walter.Schober@xxxxxxxxx> wrote:

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From: Schober Walter <Walter.Schober@xxxxxxxxx> wrote:

Had nearly the same issue. I used a /boot to boot from using ext3. Also you could create another harddisk as a file on disk to boot from. -> spec. in your VM config file.

Sorry, I know, that's not what you asked, but maybe it helps to move forward.

br

Walter

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From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of mark pryor
Sent: Monday, May 07, 2007 4:33 AM
To: Xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] centos5 guest in opensuse 10.2 with lvm

hello,

I have default install of opensuse 10.2 x86_64 with all xen related.
I have several guests working:
   Winxp pro sp2  (full virtual)
   FC6 3m respin (para)

My latest adventure is to try and install CentOS 5.0 full-virtual to an LVM filesys.
What happens is Centos boots from DVD into the installer. It sees my LVs and starts a text install.

I select the default proposal. It then fails, saying there is not enough room for
/boot.

Maybe this is not meant to be -- perhaps Centos can't boot from an LV, even in Xen?

I

cheers
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of mark pryor
Sent: Monday, May 07, 2007 4:33 AM
To: Xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] centos5 guest in opensuse 10.2 with lvm

hello,

I have default install of opensuse 10.2 x86_64 with all xen related.
I have several guests working:
   Winxp pro sp2  (full virtual)
   FC6 3m respin (para)

My latest adventure is to try and install CentOS 5.0 full-virtual to an LVM filesys.
What happens is Centos boots from DVD into the installer. It sees my LVs and starts a text install.

I select the default proposal. It then fails, saying there is not enough room for
/boot.

Maybe this is not meant to be -- perhaps Centos can't boot from an LV, even in Xen?

I

Thanks for replying Walter.
Good news, the install is underway as I type this and on this same machine!

the key was to only use one LV with 3 partitions:
/root
/home
/swap

with 
disk = [ (token for cdrom) , 'phy:xenvm/cent5,hda,w']
root = "/dev/hda1"

the root line made the difference. Without it the console would open and hang.

To format the partitions I used:

losetup /dev/loop1 /dev/xenvm/cent5
fdisk /dev/loop1   #verify 
kpartx -av /dev/loop1  #you should see your partitions
mkfs.ext3
 /dev/mapper/loop1p1  # etc for your other partitions
kpartx -dv /dev/mapper/loop1
losetup -d /dev/loop1

now when the I boot into the installer the partitions are detected and ready to use.

The happy result
---------------------------
http://www.superfloppy.net/xen/cent5.png
cheers

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