[Xen-devel] Problem with blktap2

To:	xen-devel@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-devel] Problem with blktap2
From:	Jun Koi <junkoi2004@xxxxxxxxx>
Date:	Fri, 19 Jun 2009 11:38:03 +0900
Delivery-date:	Thu, 18 Jun 2009 19:38:28 -0700
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Hi,

I am trying to use the unstable tree (changeset: 19738) to run some old images.

My old configuration file has:

disk = ['tap:qcow2:/home/xen/img.qcow2.ubuntu904,hda,w']

I got the error like:

----
Using config file "./ubuntu904.cfg".
Error: need more than 3 values to unpack

I guess that I should modify the disk configuration for new blktap2,
so I changed it to :

disk = ['tap:aio:qcow:/home/xen/img.qcow2.ubuntu904,hda,w']
----

but then i still got the error like below:

----
Using config file "./ubuntu904.cfg".
Error: Failed to create device.
    stdout: vbd open failed: -1
    stderr:
Check that target "/home/xen/img.qcow2.ubuntu904" exists and that
blktap2 driver installed in dom0.
----

I can confirm that I have blktap2 installed, as in
/boot/config-2.6.18.8-xen I have:

CONFIG_XEN_BLKDEV_TAP=y
CONFIG_XEN_BLKDEV_TAP2=y

So how can I fix the problem now?

Thanks,
J

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[Xen-devel] Problem with blktap2