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

To: Xen Users <Xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] How was CoW implemented on the Demo LiveCD (3.0) ??
From: Anand <xen.mails@xxxxxxxxx>
Date: 2006年1月26日 04:15:54 +0530
Delivery-date: 2006年1月25日 22:54:52 +0000
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On looking further in the create_cow code, i see it does create /dev/mapper/[cow name] and creates entries in /tmp/cow_backing directory with some files in it. However it ends up with the same error and hung process of dmsetup in the memory.

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

--

regards,

Anand
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