[Xen-users] Re: export single partitions to xen 3.1.2 domU

[Steven Timm <timm@xxxxxxxx>]

Just as a clarification, as I read the various manuals,
it seems that the key difference is that
the enterprise linux 5.2/xen 3.1.2 (labeled 3.0.3 as it comes from Redhat) 
is running libvirt, and my previous setup that I'm trying to
upgrade to that was not.

So does anyone know how to export a single partition to a
libvirt-enabled xen domU that's otherwise installed already, or
how to take a non-libvirt domU with 3 such partitions and turn it
into one that is\

Steve


On Tue, 21 Apr 2009, Steven Timm wrote:

> > I have some old xen instances which were installed under
> Xen 3.1.0 with the following Disk configuration
>
> disk = [ 'phy:LG0/LV11,sda1,w', 'phy:LG0/LV12,sda2,w','phy:LG0/LV13,sda3,w' ]
>
> Each one of these is a single partition, with a single file system.
>
> I am now trying to run redhat/centos/scientific linux 5.2 and convert
> these old domU's over.
>
> I run a lot of stuff on redhat/centos/scientific linux but
> I have used the virt-manager to install all of them, and they are
> all set up using the xvda type file system in which each exported
> partition has got a partition table.
> disk = [ "phy:/dev/LG0/LV0,xvda,w", "phy:/dev/LG0/LV16,xvdb,w" ]
>
>
> Is there any way to mountt single partitions
> under the new software, if so, how?
>
> I tried to export the three partitions above as xvda,xvdb, xvdc
> and change the fstab and the grub information in domU accordingly,
> no luck
>
> I also tried to just do things as before with sda1,sda2,sda3,
> also no luck.
>
> In all cases  I get this error
>
> mount: could not find filesystem '/dev/root'
> Setting up other filesystems.
> Setting up new root fs
> setuproot: moving /dev failed: No such file or directory
> no fstab.sys, mounting internal defaults
> setuproot: error mounting /proc: No such file or directory
> setuproot: error mounting /sys: No such file or directory
> Switching to new root and running init.
> unmounting old /dev
> unmounting old /proc
> unmounting old /sys
> switchroot: mount failed: No such file or directory
> Kernel panic - not syncing: Attempted to kill init!
>
> ---
>
> I suppose I could move all existing file systems to new ones
> of the new format but would really like to avoid that if I can.
>
> Steve Timm
>
>
> ------------------------------------------------------------------
> Steven C. Timm, Ph.D  (630) 840-8525
> timm@xxxxxxxx  http://home.fnal.gov/~timm/
> Fermilab Computing Division, Scientific Computing Facilities,
> Grid Facilities Department, FermiGrid Services Group, Assistant Group Leader.
--
------------------------------------------------------------------
Steven C. Timm, Ph.D  (630) 840-8525
timm@xxxxxxxx  http://home.fnal.gov/~timm/
Fermilab Computing Division, Scientific Computing Facilities,
Grid Facilities Department, FermiGrid Services Group, Assistant Group Leader.

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users