+++ This bug is a downstream clone. The original bug is: +++
+++   bug 1575777 +++
======================================================================

Description of problem:

Import VM from external provider to RHV fails if the VM has a floppy device defined which is not reachable in RHV destination hypervisor


Version-Release number of selected component (if applicable):

rhevm-4.1.9.1-0.1.el7
vdsm-4.19.50-1.el7ev
virt-v2v-1.36.3-6.el7_4.3

How reproducible:

100%

Steps to Reproduce:

1. Have a VM with floppy defined:

    <disk type='file' device='floppy'>
      <driver name='qemu' type='raw' cache='none'/>
      <source file='/iso/XXXX.vfd'/>
      <target dev='fda' bus='fdc'/>
      <alias name='fdc0-0-0'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>

2. Import VM to RHV environment from external provider, in this case it was KVM
3. It fails due to unreachable floppy disk

Actual results:

VM import fails from external provider to RHV

Expected results:

VM import should be successful as we can ignore floppy device like we did for CDROM in https://bugzilla.redhat.com/show_bug.cgi?id=1485807



Additional info:




=========
vdsm.log
=========

~~~
2018-04-25 21:24:50,042-0500 ERROR (jsonrpc/4) [root] Error getting disk size (v2v:1089)
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/vdsm/v2v.py", line 1078, in _get_disk_info
    vol = conn.storageVolLookupByPath(disk['alias'])
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 4555, in storageVolLookupByPath
    if ret is None:raise libvirtError('virStorageVolLookupByPath() failed', conn=self)
libvirtError: Storage volume not found: no storage vol with matching path

2018-04-25 21:24:50,043-0500 WARN  (jsonrpc/4) [root] Cannot add VM XXXXXXXXXXXX due to disk storage error (v2v:1020)
~~~

========
KVM XML
========


    <disk type='file' device='disk'>
      <driver name='qemu' type='raw' cache='none'/>
      <source file='/vm/DISK1.img'/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </disk>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw' cache='none'/>
      <source file='/vm/DISK2.img'/>
      <target dev='vdb' bus='virtio'/>
      <alias name='virtio-disk1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </disk>
    <disk type='file' device='floppy'>
      <driver name='qemu' type='raw' cache='none'/>
      <source file='/iso/virtio-win-1.7.1_amd64.vfd'/>
      <target dev='fda' bus='fdc'/>
      <alias name='fdc0-0-0'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <target dev='hdc' bus='ide'/>
      <readonly/>
      <alias name='ide0-1-0'/>
      <address type='drive' controller='0' bus='1' target='0' unit='0'/>
    </disk>




Workaround is to umount / undefine floppy disk definition from source, then import the VM

(Originally by Javier Coscia)