Re: [Xen-users] How to change VM from para-virtualization to full-virtualization?

[Jing Chen <jing.chen@xxxxxxxxxxxx>]

Hi Alexandre.
    
> My DomU can not start up since it "Could not find /dev/vg69/root".
Your "/" resides over a LVM volume. As far as there is no support for LVM in 
your running kernel, it will not find your "/" filesystem, just the way it 
happens now.

My kernel is SUSE linux 3.0.13-0.27-default which support the LVM. I have 
another HVM using this kernel and run LVM well. Is it possible to set the "/" 
resides in LVM volume?

Regards.

Jing Chen

CBC/XIB/K
No.5 Lize East Street, Chaoyang District
100102, Beijing, China
Phone +86 10 84767586
Mobile +86 13801223973
jing.chen@xxxxxxxxxxxx
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-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxx] 
On Behalf Of Alexandre Kouznetsov
Sent: Tuesday, November 13, 2012 12:23 AM
To: xen-users@xxxxxxxxxxxxx
Subject: Re: [Xen-users] How to change VM from para-virtualization to 
full-virtualization?

El 12/11/12 03:52, Jing Chen escribió:
> My DomU can not start up since it "Could not find /dev/vg69/root".
Your "/" resides over a LVM volume. As far as there is no support for LVM in 
your running kernel, it will not find your "/" filesystem, just the way it 
happens now.

> When it ask "Want me fo fall back to /dev/hdb2?". I input Y and the result is 
> it can not find /dev/hdb2. Why?
It's not "/" what resides over /dev/hdb2, but "/boot". So, even if it fall to 
/dev/hdb2, it does not find there things it needs.

> I do not know which previous email you refer to. Can you send it again to me?
The one from 2012-11-08, I'm sure you have overlooked it. In any case, I have 
sent it once again, to you directly.

> BTW. I am not sure if Grub is installed correctly in my PV DomU?
> Can you give me instruction how to check whether grub is installed or not?
Since your system actually attempts to boot, I see no way how would that happen 
without a boot loader. Judging by your screenshots, it is installed correctly 
within your DomU.

> From the email you to jerry, you said PV DomU has no grub installed.
That is correct. In PV mode, the boot loader task is performed outside of the 
virtual machine. When moving to HVM, a boot loader within VM is needed.

--
Alexandre Kouznetsov


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