Created attachment 938787 [details] Debug info about converting rhel7 guest Description warning shows when converting rhel7 guest:virt-v2v:could not update grub2 console: aug_get: no matching node (ignored) Version: libguestfs-1.27.48-1.1.el7.x86_64 virt-v2v-1.27.48-1.1.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1.Prepare a rhel7 guest. 2.Use virt-v2v to convert rhel7 guest,warning shows: virt-v2v: warning: could not update grub2 console: aug_get: no matching node (ignored) # virt-v2v -ic xen+ssh://10.66.106.64 -os default rhel7 -of raw [ 0.0] Opening the source -i libvirt -ic xen+ssh://10.66.106.64 rhel7 [ 17.0] Creating an overlay to protect the source from being modified [ 31.0] Opening the overlay [ 53.0] Initializing the target -o libvirt -os default [ 53.0] Inspecting the overlay [ 62.0] Checking for sufficient free disk space in the guest [ 62.0] Estimating space required on target for each disk [ 62.0] Converting Red Hat Enterprise Linux Server release 7.0 Beta (Maipo) to run on KVM virt-v2v: warning: could not update grub2 console: aug_get: no matching node (ignored) [ 123.0] Mapping filesystem data to avoid copying unused and blank areas [ 124.0] Closing the overlay [ 125.0] Copying disk 1/1 to /var/lib/libvirt/images/rhel7-sda (raw) (100.00/100%) [ 207.0] Creating output metadata Pool default refreshed Domain rhel7 defined from /tmp/v2vlibvirtd8e625.xml [ 207.0] Finishing off Actual results： Warning shows as description. Expected results: No such warning shows. Additional info: Attached the detailed log file.
I don't know how serious this is. It *is* reproducible easily however: $ virt-builder rhel-7.0 $ virt-v2v -i disk rhel-7.0.img -o null [ 0.0] Opening the source -i disk rhel-7.0.img [ 0.0] Creating an overlay to protect the source from being modified [ 0.0] Opening the overlay [ 8.0] Initializing the target -o null [ 8.0] Inspecting the overlay [ 11.0] Checking for sufficient free disk space in the guest [ 11.0] Estimating space required on target for each disk [ 11.0] Converting Red Hat Enterprise Linux Server release 7.0 (Maipo) to run on KVM virt-v2v: warning: could not update grub2 console: aug_get: no matching node (ignored) [ 41.0] Mapping filesystem data to avoid copying unused and blank areas [ 42.0] Closing the overlay [ 43.0] Copying disk 1/1 to /var/tmp/null.ggDLGx/sda (raw) (100.00/100%) [ 46.0] Creating output metadata [ 46.0] Finishing off
I think this was a bug in old virt-v2v. Yay! The fix is: https://github.com/libguestfs/libguestfs/commit/035f47cdde4052e77613c77d2e5e0f24dbab082f
Tested the bug with: libguestfs-1.27.49-1.1.el7.x86_64 virt-v2v-1.27.49-1.1.el7.x86_64 Use virt-v2v to convert a rhel7 guest,there is no such warning info shows,so 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