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[Bug 1195913] Re: Mounting 4K block size Cinder Volume on instance fails

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Thu, 05 Sep 2013 15:38:44 -0000
Reply-to: Bug 1195913 <1195913@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: nova
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1195913

Title:
  Mounting 4K block size Cinder Volume on instance fails

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  When using a 4K block sized volume created in Cinder, it attaches to
  the instance no problem and partitions can be created and there are no
  issues with formatting the partition.  However when attempting to
  mount the volume an IO Error occurs and the mount fails.

  This behavior has been seen on KVM/Libvirt and happens on various
  instances (Ubuntu, Cirros, Fedora etc).  I suspect there's something
  in the block-size parameter of the libvirt attach XML that's either
  missing or incorrect, I'll try looking into this but wanted to get
  this out incase somebody already knows what might be going on here.

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