[Xen-users] xm block-attach and qcow image - why does it fail ?

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Subject:	[Xen-users] xm block-attach and qcow image - why does it fail ? second try
From:	Xu Nakajima <xunakaj@xxxxxxxxx>
Date:	Tue, 13 Mar 2007 02:13:58 -0700 (PDT)
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Hello, 

This is a second post, with a trial which is different
from the first one , in order to  solve my
blcok-attach problem.

I tried the following two actions, according to the
blktap readme:

qcow-create 1000 qcowFile.img 
Creating file size 1048576000
Created cksum: 1813725440
then 
xm block-attach 0 tap:qcow:qcowFile.img /dev/xvda1 w 0

I see in the /var/log/xen/xend.log: 
[2007-03-13 11:03:32 xend 2423] DEBUG (blkif:24)
exception looking up device 
  number for /dev/xvda1: [Errno 2] No such file or
directory: '/dev/xvda1'

Running:
 mount /dev/xvda1 /mnt/disk
mount: special device /dev/xvda1 does not exist
 
ls /dev/xvda*
ls: No match.

houldn't this qcow-create and xm block-attach work ? 
 should I run before "mknod /dev/xvda1"?  which
parameters should I pass? 
 
 Can somebody please try this ? 
 
I hope that this mystery will be solved ! 
Regards,
Xu




 
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[Xen-users] xm block-attach and qcow image - why does it fail ? second t