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<div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 1.6;">hi ，everyone!</div><div><span style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;">I am a newcomer to Libvirt, and I don't know if it's a native question,</span></div><div><span style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><br></span></div><div><span style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;">I create snapshots of virtual machines that use encrypted disk, The console gave me the following error:</span></div><div><br></div><span>
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<div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 1.6;">Traceback(most recent call last):</div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 1.6;"> File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py",line 4613, in snapshot</div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 1.6;"> self._dom,snapshotCreateXML(snapxml, snapFlags)</div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 1.6;"> File "/usr/lib/<span style="line-height: 22.4px;">python2.7/site-packages/vdsm/virt/virdomain.py</span><span style="line-height: 1.6;">", in line 98, in f </span></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 1.6;"> ret = attr(*args, **kwargs)</div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><font face="微软雅黑, Verdana, Microsoft Yahei, SimSun, sans-serif"><span style="line-height: 1.6;"> </span>File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 130, in wrapper</font></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><font face="微软雅黑, Verdana, Microsoft Yahei, SimSun, sans-serif"> ret = f(*args, **kwargs)</font></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><font face="微软雅黑, Verdana, Microsoft Yahei, SimSun, sans-serif"> File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 92, in wrapper</font></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><font face="微软雅黑, Verdana, Microsoft Yahei, SimSun, sans-serif"> return func(inst, *args, **kwargs)</font></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><font face="微软雅黑, Verdana, Microsoft Yahei, SimSun, sans-serif"> File "/usr/lib64/python2.7/site-packages/libvirt.py", line 2620, in snapshotCreateXML</font></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><font face="微软雅黑, Verdana, Microsoft Yahei, SimSun, sans-serif"> if ret is None:raise libvirtError('virDomainSnapshotCreateXML() failed', dom=self)</font></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><font face="微软雅黑, Verdana, Microsoft Yahei, SimSun, sans-serif"> libvirtError: internal error: unable to execute QEMU command 'transaction': Parameter 'encrypt.key-secret' is required for cipher</font></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><font face="微软雅黑, Verdana, Microsoft Yahei, SimSun, sans-serif"><br></font></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><span style="color: rgb(51, 51, 51); font-family: Arial, 'Microsoft YaHei', '\\5FAE软雅黑', '\\5B8B体', 'Malgun Gothic', Meiryo, sans-serif; font-size: 13.6px; line-height: 25.9875px; widows: auto; background-color: rgb(247, 248, 250);">And try adding encryption fields to domainsnapshot, as shown below</span></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><span style="color: rgb(51, 51, 51); font-family: Arial, 'Microsoft YaHei', '\\5FAE软雅黑', '\\5B8B体', 'Malgun Gothic', Meiryo, sans-serif; font-size: 13.6px; line-height: 25.9875px; widows: auto; background-color: rgb(247, 248, 250);"><br></span></div><div><span style="widows: auto; background-color: rgb(247, 248, 250); font-size: 13.6px; line-height: 25.9875px;"><font color="#333333" face="Arial, Microsoft YaHei, \\5FAE软雅黑, \\5B8B体, Malgun Gothic, Meiryo, sans-serif"><div><?xml version='1.0' encoding='utf-8'?></div><div><domainsnapshot></div><div><span class="Apple-tab-span" style="white-space:pre"> </span><disks></div><div><span class="Apple-tab-span" style="white-space:pre"> </span><disk name="sda" snapshot="external" type="file"> </div><div><span class="Apple-tab-span" style="white-space:pre"> </span><source file="/rhev/data-center/mnt/192.168.1.13:_exports_data/168bc099-3ff1-44e8-ba2f-face1594db63/images/eed78b32-f257-445f-8f2e-b5c969ee38e8/da869c1d-f6bb-4816-be6a-f4d1d2ae2af2" type="file" /> #enc</div><div> <encryption format="luks"></div><div><span class="Apple-tab-span" style="white-space:pre"> </span><secret type="passphrase" uuid="694bdf38-214e-48d3-8c4c-9dbbcf0f5fa0" /></div><div><span class="Apple-tab-span" style="white-space:pre"> </span></encryption></div><div><span class="Apple-tab-span" style="white-space:pre"> </span></disk></div><div> <span class="Apple-tab-span" style="white-space:pre"> </span></disks></div><div><span class="Apple-tab-span" style="white-space:pre"> </span><memory file="/rhev/data-center/mnt/192.168.0.91:_exports_data/168bc099-3ff1-44e8-ba2f-face1594db63/images/6236ecf4-0eb5-4879-bb6d-251ae84b55f8/f086c613-d1c2-4ab3-851e-97961173d1d6" snapshot="external" /> # notenc</div><div style=""> </domainsnapshot></div><div style=""><br></div><div style=""><span style="font-size: 13.6px; line-height: 25.9875px; widows: auto;">But there are still the same mistakes. I don't know whether the encrypted snapshot supports this operation or whether I added encryption information in the wrong way.</span></div><div style=""><span style="font-size: 13.6px; line-height: 25.9875px; widows: auto;"><br></span></div></font></span></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><span style="color: rgb(51, 51, 51); font-family: Arial, 'Microsoft YaHei', '\\5FAE软雅黑', '\\5B8B体', 'Malgun Gothic', Meiryo, sans-serif; font-size: 13.6px; line-height: 25.9875px; widows: auto; background-color: rgb(247, 248, 250);">This problem has been bothering me for a long time. Any tips or help will be appreciated. Thank you</span></div><div style="color: rgb(49, 53, 59); font-family: 微软雅黑, Verdana, 'Microsoft Yahei', SimSun, sans-serif; line-height: 22.4px;"><font face="微软雅黑, Verdana, Microsoft Yahei, SimSun, sans-serif"><br></font></div><span>
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