On Monday 20 Aug 2012, Balwinder S Dheeman wrote:
> On 08/20/2012 01:37 PM, Raj Mathur (राज माथुर) wrote:
> > Treated myself to some new hardware as advance
> > Eid/Diwali/Christmas/New Year gift, and was trying to install Xen
> > and get virtual machines running on that.  The path was long and
> > arduous, and is still not complete, but some of my experiences on
> > the way are documented in:
> > 
> > http://wiki.kandalaya.org/cgi%2dbin/twiki/view/Main/DebianXenMigrat
> > eVirtualBox
> > 
> > Covered are:
> > 
> > - Basic Xen setup
> > - Compiling and installing a custom kernel for the i915 GPU Hung
> > issue - Extracting a disk image from a VirtualBox VDI
> > - Creating and running a Xen DomU with the image
> > 
> > It's mostly technical and expects the reader to have decent Linux
> > sysadmin and basic Xen knowledge.
> > 
> > Feedback, bouquets and brickbats (in moderation :) appreciated.
> 
> You had already been a good howto/document writer and this one is yet
> another milestone on your journey towards the leadership.

I'm blushing!

> I may be wrong, but I think:
> 
>  1. We must edit the /etc/fstab in VM image before we boot into it,
> the kernel and, or initrd scripts won't be able to find the root
> partition.

You're partially correct: the kernel (which is in the Dom0) is passed 
the "root=" parameter by Xen, so the correct disk gets mounted as root.  
Other -- non-root -- partitions, like you said, won't get mounted.  If 
you can manage with just root mounted, then the HOWTO is fine.  If not 
(e.g. /usr along with /usr/bin/vi is on a different partition) then, as 
you said, you need to change fstab before trying to boot the system.

> 2. It's better we either use UUIDs or LABELs in the
> /etc/fstab; applicable to all installations/distos.

You're right, UUIDs are much better than explicit partition names.  It's 
just... I hate them, because I like to know which partitions are mounted 
where by looking at mount(8) output, and UUIDs really get in the way.  
Purely a personal thing, and not a recommendation for anyone else!

Regards,

-- Raj
-- 
Raj Mathur                          || r...@kandalaya.org   || GPG:
http://otheronepercent.blogspot.com || http://kandalaya.org || CC68
It is the mind that moves           || http://schizoid.in   || D17F

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