Red Hat Bugzilla – Bug 794680
virt-v2v prints waring:WARNING:/boot/grub/device.map references unknown device /dev/fd0
Last modified: 2014-09-26 14:33:42 EDT
Description of problem: When convert guests contained a reference to the floppy disk (/dev/fd0),virt-v2v prints waring:WARNING:/boot/grub/device.map references unknown device /dev/fd0 Version-Release number of selected component (if applicable): virt-v2v-0.8.6-1.el6.x86_64 libvirt-0.9.10-1.el6.x86_64 libguestfs-1.16.5-1.el6.x86_64 How reproducible: always Steps to Reproduce: 1.Use virt-v2v to convert a rhel4u8 guest. Before conversion, the rhel4u8 guest has fd0 in /boot/grub.device.map (fd0) /dev/fd0 (hd0) /dev/hda # virt-v2v -ic xen+ssh://10.66.72.123 -os default xen-hvm-rhel4.8-i386 root@10.66.72.123's password: root@10.66.72.123's password: rhel4u8-32b-hv-raw-intel.img: 100% [==============================================================================]D 0h07m05s virt-v2v: WARNING: /boot/grub/device.map references unknown device /dev/fd0. This entry must be manually fixed after conversion. virt-v2v: WARNING: The connected hypervisor does not support feature pae. virt-v2v: WARNING: No mapping found for bridge interface xenbr0 in config file. The converted guest may not start until its network interface is updated. virt-v2v: xen-hvm-rhel4.8-i386 configured with virtio drivers. 2.After conversion,check /boot/grub/device.map (fd0) /dev/fd0 (hd0) /dev/vda Actual results: There is warning:virt-v2v: WARNING: /boot/grub/device.map references unknown device /dev/fd0. This entry must be manually fixed after conversion. Expected results: There should be no warning as actual results. Additional info: When tested with virt-v2v-0.8.3-5.el6.x86_64,there is no such warning. # virt-v2v -ic xen+ssh://10.66.72.123 -os default xen-hvm-rhel4.8-i386 root@10.66.72.123's password: root@10.66.72.123's password: rhel4u8-32b-hv-raw-intel.img: 100% [==============================================================================]D 0h07m07s virt-v2v: WARNING: No mapping found for bridge interface xenbr0 in config file. The converted guest may not start until its network interface is updated. virt-v2v: xen-hvm-rhel4.8-i386 configured with virtio drivers.
Also tested converting a vm with a cdrom device specified in fstab,virt-v2v will print waring:/etc/fstab references unknown device /dev/hdc. Steps: 1.Before conversion,prepare a vm with a cdrom device specified in fstab in guest,fstab entry: /dev/hdc /media/cdrom auto pamconsole,exec,noauto,managed 0 0 2.Use virt-v2v to convert the guest. # virt-v2v -ic xen+ssh://10.66.72.123 -os default -b breth0 rhel4-32-hvm-min root@10.66.72.123's password: root@10.66.72.123's password: rhel4-32-hvm-min.img: 100% [======================================================================================]D 0h00m36s virt-v2v: WARNING: /etc/fstab references unknown device /dev/hdc. This entry must be manually fixed after conversion. virt-v2v: WARNING: /boot/grub/device.map references unknown device /dev/fd0. This entry must be manually fixed after conversion. virt-v2v: rhel4-32-hvm-min configured with virtio drivers.
This is fixed upstream in commit 6924a592223b52f707868a84b98865391c03d7c3
Verified partial failed, so move the status to "Assigned". Summary: Convert guest with floppy verified passed, but Converted a guest with CDrom(In comment 3), the warning message still popup. Failed Detail please refer to below: 1. Before conversion,prepare a vm with a cdrom device specified in fstab in guest,fstab entry: /dev/hdc /media/cdrom auto pamconsole,exec,noauto,managed 0 0 2. Convert from Xen to KVM: [root@andytest ~]# virt-v2v -ic xen+ssh://10.66.72.23 -os default -b br0 rhel4-32-hvm-min root@10.66.72.23's password: root@10.66.72.23's password: rhel4-32-hvm-min.img: 100% [==============================================================================================================================]D 0h00m42s virt-v2v: WARNING: /etc/fstab references unknown device /dev/hdc. This entry must be manually fixed after conversion. virt-v2v: rhel4-32-hvm-min configured with virtio drivers. The warning message mentioned in Comment 3 still existed 3. After conversion,check guest file /etc/fstab /dev/hda /media/cdrom auto pamconsole,exec,noauto,managed 0 0 So change the status to "ASSIGNED"
The bug specifically references fd0, but the test was of hdc. The hdc warning is different, and needs a different bug.
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. http://rhn.redhat.com/errata/RHBA-2013-0477.html
*** Bug 869562 has been marked as a duplicate of this bug. ***