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


  • To: Xen Users <Xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: Anand <xen.mails@xxxxxxxxx>
  • Date: Thu, 26 Jan 2006 04:15:54 +0530
  • Delivery-date: Wed, 25 Jan 2006 22:54:52 +0000
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

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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