Re: [Xen-users] SWAP on domUs is not mounted.

[Tom Brown <tbrown@xxxxxxxxxxxxx>]

On Sun, 25 Feb 2007, Stephen Morris wrote:

> On 2/25/07, kanour-xen <xen@xxxxxxxxxx> wrote:
> >  Hi.
> >  My SWAP on all domUs is not working.
> >
> >  On dom0 I have logical volume (LVM) created and formated for swap. I can
> >  enable this volume under dom0 as a swap (tested).
> >  On domUs I am unable to enable it. I have swap support compiled in kernel.
> >  My fstab is properly configured.
> >
> >  Can someone advice?
> >
> >  Jiri
> >
> >  _______________________________________________
> >  Xen-users mailing list
> >  Xen-users@xxxxxxxxxxxxxxxxxxx
> >  http://lists.xensource.com/xen-users
> Hi Jiri,
>
> I had a similar problem, but was using a primary swap partition for
> swap. What worked for me was to use an interactive "xm block-attach .
> . ." command - the
> arguments were similar to those used in the "disk" command (for the
> swap) in the configuration file. The swap file worked on the next domU
> boot and has worked every time since. I haven't yet discovered where
> this configuration is stored.
Xen seems (i'm NOT a developer) to have a storage system/daemon for config 
info like this... there should be a xenstored process in dom0 which 
handles it. You can query it via the xenstore* commands. And of 
block-attach is helping, then block-list may provide usefull info too.
  xm block-list DOMID

... but I'm not sure if it gets its info from xenstore or parts of it come 
from the hypervisor.
-Tom

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