Bug 1142004
| Summary: | virt-v2v prints warning:WARNING:/files/boot/grub/device.map references unknown device "xvda" | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | tingting zheng <tzheng> |
| Component: | libguestfs | Assignee: | Richard W.M. Jones <rjones> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.1 | CC: | codong, dyuan, juzhou, mbooth, mzhan, ptoscano, rjones, tzheng |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | V2V | ||
| Fixed In Version: | libguestfs-1.27.48-1.1.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-03-05 13:44:56 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
There's a more recent version in errata tool, which should also suppress this warning message: libvirt: Remote Driver error : unknown procedure: 212 About this bug, can you get the libvirt XML for the guest, ie: virsh -c xen+ssh://10.66.106.64 dumpxml xen-hvm-rhel6.4-x86_64 (In reply to Richard W.M. Jones from comment #2) > There's a more recent version in errata tool, which should > also suppress this warning message: > > libvirt: Remote Driver error : unknown procedure: 212 > > About this bug, can you get the libvirt XML for the guest, ie: > > virsh -c xen+ssh://10.66.106.64 dumpxml xen-hvm-rhel6.4-x86_64 # virsh -c xen+ssh://10.66.106.64 dumpxml xen-hvm-rhel6.4-x86_64 <domain type='xen'> <name>xen-hvm-rhel6.4-x86_64</name> <uuid>50b079fa-7928-9104-db8e-4aa6de8c27c3</uuid> <memory>524288</memory> <currentMemory>524288</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64' machine='xenfv'>hvm</type> <loader>/usr/lib/xen/boot/hvmloader</loader> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/lib64/xen/bin/qemu-dm</emulator> <disk type='file' device='disk'> <driver name='file'/> <source file='/var/lib/xen/images/xen/xen-hvm/xen-hvm-rhel6.4-x86_64.img'/> <target dev='hda' bus='ide'/> </disk> <interface type='bridge'> <mac address='00:16:3e:84:5c:4c'/> <source bridge='xenbr0'/> <script path='vif-bridge'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target port='0'/> </console> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/> </devices> </domain> Upstream fix: https://github.com/libguestfs/libguestfs/commit/01b25d7fc6ea1dee80d104118436980b7d504af0 Will be in 1.27.47. I tried to convert xen hvm and pv guests,no such warning shows.
However,I found that after conversion,check the file /boot/grub/device.map,
it shows as something like:
1.Converted xen-hvm-rhel6.4-x86_64 guest,the disk part in xml:
<disk type='volume' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source pool='default' volume='xen-hvm-rhel6.4-x86_64-sda'/>
<backingStore/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</disk>
# cat /boot/grub/device.map
# this device map was generated by anaconda
(hd0) /dev/sda
2.Converted xen-hvm-rhel4.8-i386 guest,the disk part in xml:
<disk type='volume' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source pool='default' volume='xen-hvm-rhel4.8-i386-sda'/>
<backingStore/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</disk>
# cat /boot/grub/device.map
# this device map was generated by anaconda
(hd0) /dev/hda
3.Converted rhel6.6-pv-x64-test guest,the disk part in xml:
<disk type='volume' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source pool='default' volume='rhel6.6-pv-x64-test-sda'/>
<backingStore/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</disk>
# cat /boot/grub/device.map
# this device map was generated by anaconda
(hd0) /dev/sda
For the above 3 guests,why the content in device.map is different,I think it should all be /dev/vda.
Fixed in: https://github.com/libguestfs/libguestfs/commit/7739a6d3570efa2fee32b7210de40c73eca5b988 The fix will appear in virt-v2v >= 1.27.48. Tested with: # rpm -qa libguestfs virt-v2v libguestfs-1.27.48-1.1.el7.x86_64 virt-v2v-1.27.48-1.1.el7.x86_64 Converted some xen hvm and pv guests,no warning info shows and after conversion,checked the below file: # cat /boot/grub/device.map # this device map was generated by anaconda (hd0) /dev/vda Refer to the above comments,move the bug to VERIFIED. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2015-0303.html |
Description virt-v2v prints waring:WARNING:/files/boot/grub/device.map references unknown device "xvda" Version: libguestfs-1.27.43-1.1.el7.x86_64 virt-v2v-1.27.43-1.1.el7.x86_64 libvirt-1.2.8-2.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1.Prepare a xen hvm or pv guest. Before conversion,check /boot/grub/device.map: # cat /boot/grub/device.map # this device map was generated by anaconda (hd0) /dev/xvda 2.Use virt-v2v to convert guest from xen,error shows: virt-v2v: warning: /files/boot/grub/device.map/hd0 references unknown device "xvda". You may have to fix this entry manually after conversion. # virt-v2v -ic xen+ssh://10.66.106.64 -os default xen-hvm-rhel6.4-x86_64 -of qcow2 [ 0.0] Opening the source -i libvirt -ic xen+ssh://10.66.106.64 xen-hvm-rhel6.4-x86_64 libvirt: Remote Driver error : unknown procedure: 212 [ 16.0] Creating an overlay to protect the source from being modified [ 30.0] Opening the overlay [ 52.0] Initializing the target -o libvirt -os default [ 52.0] Inspecting the overlay [ 58.0] Checking for sufficient free disk space in the guest [ 58.0] Converting Red Hat Enterprise Linux Server release 6.4 (Santiago) to run on KVM virt-v2v: warning: /files/boot/grub/device.map/hd0 references unknown device "xvda". You may have to fix this entry manually after conversion. [ 128.0] Mapping filesystem data to avoid copying unused and blank areas [ 129.0] Closing the overlay [ 129.0] Copying disk 1/1 to /var/lib/libvirt/images/xen-hvm-rhel6.4-x86_64-sda (qcow2) (100.00/100%) [ 202.0] Creating output metadata Pool default refreshed Domain xen-hvm-rhel6.4-x86_64 defined from /tmp/v2vlibvirt884738.xml [ 202.0] Finishing off 3.After conversion,check /boot/grub/device.map: # cat /boot/grub/device.map # this device map was generated by anaconda (hd0) /dev/xvda Actual results： As described. Expected results: Step 2:No such warning info shows. Step 3:it should be /dev/vda instead of xvda. Additional info: