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[Qemu-devel] [Bug 1354167] Re: On VM restart: Could not open 'poppy.qcow
From: |
Todd |
Subject: |
[Qemu-devel] [Bug 1354167] Re: On VM restart: Could not open 'poppy.qcow2': Could not read snapshots: File too large |
Date: |
Mon, 25 Aug 2014 23:10:50 -0000 |
Just putting this up here for anyone unlucky enough to hit this. This
isn't a fix but it may rescue your borked qcow2 image.
Download and compile the 1.7.2 version of qemu but don't install it.
For example create a directory called qemutemp, download
qemu-1.7.2.tar.bz2, untar it and do ./configure and the make (but don't
do make install).
Then you should be able to convert your image from qcow2 to raw with:
./qemu-img convert /var/lib/libvirt/images/yourimagename.qcow2
/var/lib/libvirt/images/yourimagenamefixed.raw
then
virsh edit yourvmname
and change yourimagename.qcow2 to yourimagenamefixed.raw and change the
driver type from qcow2 to raw.
Cross your fingers and boot the copy.
Note: This bug spooked management and now I'm mandated to only use
vmware. And I was soooo close to escape too.
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https://bugs.launchpad.net/bugs/1354167
Title:
On VM restart: Could not open 'poppy.qcow2': Could not read snapshots:
File too large
Status in QEMU:
New
Bug description:
I'm unable to restart a VM. virt-manager is giving me:
Error starting domain: internal error: process exited while connecting
to monitor: qemu-system-x86_64: -drive
file=/var/lib/libvirt/images/poppy.qcow2,if=none,id=drive-virtio-
disk0,format=qcow2: could not open disk image
/var/lib/libvirt/images/poppy.qcow2: Could not read snapshots: File
too large
From the command line trying to check the image also gives me:
qemu-img check poppy.qcow2
qemu-img: Could not open 'poppy.qcow2': Could not read snapshots: File too
large
This bug appears with both the default install of qemu for ubuntu 14.04:
qemu-img version 2.0.0, Copyright (c) 2004-2008 Fabrice Bellard
And the latest version.
qemu-img version 2.1.50, Copyright (c) 2004-2008 Fabrice Bellard
Host:
Dual E5-2650 v2 @ 2.60GHz
32GB Memory
4TB Disk space (2.1TB Free)
Host OS: Ubuntu 14.04.1 LTS 64bit
Guest:
Ubuntu 14.04 64bit
Storage Size: 500gb
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