<div dir="ltr">I'm using libvirt 1.2.20. Also I noticed that if I specify the file format in the target xml the file is cloned correctly:<div><div>destXML = """</div><div> <volume></div><div> <name>"""+name+""".qcow2</name> </div><div> <target></div><div> <path>/jffs2/disk0/"""+poolName+'/'+name+""".qcow2</path></div><div> <b><format type='qcow2'/></b></div><div> <permissions></div><div> <owner>-1</owner></div><div> <group>-1</group></div><div> <mode>0644</mode></div><div> <label>virt_image_t</label></div><div> </permissions></div><div> </target></div><div> </volume>"""</div></div><div><br></div><div>But it does not say anything about this part on <a href="http://libvirt.org">libvirt.org</a>. So it's either a bug or the tutorial is not correct.</div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div><font color="#666666" face="verdana, sans-serif">Andrei</font></div></div></div> <br><div class="gmail_quote">On Mon, Feb 22, 2016 at 11:10 AM, Martin Kletzander <span dir="ltr"><<a href="mailto:mkletzan@redhat.com" target="_blank">mkletzan@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On Fri, Feb 19, 2016 at 12:33:10PM +0000, Andrei Perietanu wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> On Fri, Feb 19, 2016 at 12:12 PM, Martin Kletzander <<a href="mailto:mkletzan@redhat.com" target="_blank">mkletzan@redhat.com</a>><br> wrote:<br> <br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> On Fri, Feb 19, 2016 at 11:12:32AM +0000, Andrei Perietanu wrote:<br> <br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> I'm trying to clone a volume in a storage pool and I'm following the steps<br> described here:<br> <br> <a href="http://libvirt.org/docs/libvirt-appdev-guide-python/en-US/html/libvirt_application_development_guide_using_python-Storage_Pools-Cloning.html" rel="noreferrer" target="_blank">http://libvirt.org/docs/libvirt-appdev-guide-python/en-US/html/libvirt_application_development_guide_using_python-Storage_Pools-Cloning.html</a><br> <br> My code looks like:<br> <br> destXML = """<br> <volume><br> <name>"""+newDiskName+""".qcow2</name><br> <target><br> <br> <path>/jffs2/disk0/"""+poolName+'/'+newDiskName+""".qcow2</path><br> <format type='qcow2'/><br> <permissions><br> <owner>-1</owner><br> <group>-1</group><br> <mode>0644</mode><br> <label>virt_image_t</label><br> </permissions><br> </target><br> </volume>"""<br> <br> srcDisk = tmpPool.storageVolLookupByName(vDisk)<br> newVol = sp.createXMLFrom(destXML,srcDisk, 0)<br> <br> According to the steps described in the link, this should be it; but I<br> can't start any VM that are using this volume.<br> <br> Also comparing the volume XML files for src/dest it looks like the format<br> is not copied over:<br> source:<br> <volume type='file'><br> <name>k.qcow2</name><br> <key>/jffs2/disk0/sp/vDisk.qcow2</key><br> <source><br> </source><br> <capacity unit='bytes'>3221225472</capacity><br> <allocation unit='bytes'>332075008</allocation><br> <target><br> <path>/jffs2/disk0/sp/vDisk.qcow2</path><br> *<format type='qcow2'/>*<br> <permissions><br> <mode>0644</mode><br> <owner>0</owner><br> <group>0</group><br> </permissions><br> <timestamps><br> <atime>1455879195</atime><br> <mtime>1455879171</mtime><br> <ctime>1455879171</ctime><br> </timestamps><br> </target><br> <br> <br> dest:<br> <volume type='file'><br> <name>newDiskName.qcow2</name><br> <key>/jffs2/disk0/sp/newDiskName.qcow2</key><br> <source><br> </source><br> <capacity unit='bytes'>3221225472</capacity><br> <allocation unit='bytes'>326868992</allocation><br> <target><br> <path>/jffs2/disk0/sp/newDiskName.qcow2</path><br> *<format type='raw'/>*<br> <br> </blockquote> <br> <br> So there are two bugs here, probably. Does this go away if you refresh<br> the pool?<br> <br> </blockquote> No, refreshing the pool does not help. The problem is not that I<br> don't see the new volume, the problem is I get a "raw" file instead of<br> "qcow2"<br> <br> </blockquote> <br></div></div> I know, I wanted to see whether that format changed. Are those files<br> really cloned? I tried the same thing you did and I have the right<br> format there. What libvirt version are you running?<div class="HOEnZb"><div class="h5"><br> <br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <br> The other thing is that it doesn't matter what's here, you should<br> explicitly specify the format in the domain XML anyway. Do you do that?<br> <br> </blockquote> The tutorial I followed (<a href="http://libvirt.org" rel="noreferrer" target="_blank">libvirt.org</a>) says:<br> "Cloning a storage volume is similar to creating a new storage volume,<br> except that an existing storage volume is used for most of the attributes.<br> Only the name and permissions in the XML parameter are used for the new<br> volume, everything else is inherited from the existing volume."<br> So I don't specifically mention the file formal in the xml for the new<br> volume.<br> <br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <br> <permissions><br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <mode>0644</mode><br> <owner>0</owner><br> <group>0</group><br> </permissions><br> <timestamps><br> <atime>1455878686</atime><br> <mtime>1455878681</mtime><br> <ctime>1455878681</ctime><br> </timestamps><br> </target><br> </volume><br> <br> I this a bug in libvirt->createXMLFrom ?? 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