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https://issues.apache.org/jira/browse/CLOUDSTACK-210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13469838#comment-13469838
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David Nalley commented on CLOUDSTACK-210:
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Not being able to take a snapshot on a major supported platform seems like a
pretty major bug to ship 4.0 with doesn't it?
> KVM Snapshot fails on RHEL 6.3 because of qemu-img help text differences
> ------------------------------------------------------------------------
>
> Key: CLOUDSTACK-210
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-210
> Project: CloudStack
> Issue Type: Bug
> Components: KVM
> Affects Versions: pre-4.0.0
> Reporter: Prasanna Santhanam
> Assignee: edison su
> Fix For: 4.1.0
>
>
> From: http://markmail.org/thread/fndid26baau3sxdl
> On Wed, Sep 26, 2012 at 08:23:31AM -0400, Sowmya Krishnan wrote:
> > Here's the output on Ubuntu:
> > qemu-img --help|grep convert |grep snapshot
> > convert [-c] [-p] [-f fmt] [-t cache] [-O output_fmt] [-o options] [-s
> > snapshot_name] [-S sparse_size] filename [filename2 [...]] output_filename
> >
> > which is similar to RHEL6.2:
> > qemu-img --help|grep convert |grep snapshot
> > convert [-c] [-p] [-f fmt] [-t cache] [-O output_fmt] [-o options] [-s
> > snapshot_name] [-S sparse_size] filename [filename2 [...]] output_filename
> >
> > Returns null on RHEL6.3:
> > [root@rhel63 ~]# qemu-img --help|grep convert |grep snapshot
> > [root@rhel63 ~]#
> Thanks, Could you post a bug?
> The issue seems to be in
>
> plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtComputingResource.java
> 4289 private boolean isSnapshotSupported() {
> 4290 String result = executeBashScript("qemu-img --help|grep -E
> convert|snapshot");
> 4291 if (result != null) {
> 4292 return false;
> 4293 } else {
> 4294 return true;
> 4295 }
> 4296 }
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