Re: [Xen-users] How was CoW implemented on the Demo LiveCD (3.0) ??

[Tim Deegan <Tim.Deegan@xxxxxxxxxxxx>]

On Wed, Jan 25, 2006 at 05:44:09PM +0530, Anand wrote:
> create_cow -i /root/xen/centos.4-2.img -n cent01 -s 50
> 
> Putting /root/xen/centos.4-2.img onto loopback device /dev/loop100
> Creating a device mapper device for /dev/loop100
> Creating backing file
> 1+0 records in
> 1+0 records out
> Creating snapshot
> device-mapper ioctl cmd 9 failed: Invalid argument
> Command failed

What is the actual dmsetup command that fails?  What's the output of
"bash -x /usr/sbin/create_cow -i /root/xen/centos.4-2.img -n cent01 -s 50" ?

Tim.

-- 
Tim Deegan                           (My opinions, not the University's)
Systems Research Group
University of Cambridge Computer Laboratory

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