[Bug 1355686] [NEW] (Regression) Ubuntu 14.10 installation fails for pci-ohci USB disk

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Problem Description
=================
(Regression) Ubuntu 14.10 installation fails for pci-ohci USB disk, Installer not able to detect the driver for the device.
 
---uname output---
Linux ubuntuAug10 3.16.0-6-generic #11-Ubuntu SMP Mon Jul 28 02:00:45 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux
 
Machine Type = 8284-22A  

pKVM version:
[root at lep8a ~]# cat /etc/issue
IBM_PowerKVM release 2.1.1 build 5 alpha (pkvm2_1_1)
Kernel \r on a \m (\l)

Steps to Reproduce
=================
 1. This is an regression issue which worked with Ubuntu 14.10 kernel version 
Linux ubuntuT15 3.15.0-6-generic #11-Ubuntu SMP Thu Jun 12 00:40:49 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux

2. use the below XML to install the OS on USB disk.
[root at lep8a manu]# virsh dumpxml GMT_ubuntu14_10_ohci
<domain type='kvm' id='90'>
  <name>GMT_ubuntu14_10_ohci</name>
  <uuid>d00751c0-fa01-9b84-52c3-6354567845e0</uuid>
  <memory unit='KiB'>2048000</memory>
  <currentMemory unit='KiB'>2048000</currentMemory>
  <vcpu placement='static'>16</vcpu>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='ppc64' machine='pseries'>hvm</type>
    <boot dev='hd'/>
    <boot dev='cdrom'/>
  </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/bin/qemu-kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source file='/var/lib/libvirt/images/manu/Gubunut_usb_h1.qcow2'/>
      <backingStore/>
      <target dev='sda' bus='usb'/>
      <alias name='usb-disk0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source file='/var/lib/libvirt/images/manu/ISO/utopic-server-ppc64el.iso'/>
      <backingStore/>
      <target dev='sdb' bus='scsi'/>
      <readonly/>
      <alias name='scsi0-0-0-1'/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>
    <controller type='usb' index='0' model='pci-ohci'>
      <alias name='usb0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <controller type='scsi' index='0'>
      <alias name='scsi0'/>
      <address type='spapr-vio' reg='0x2000'/>
    </controller>
    <controller type='scsi' index='1' model='ibmvscsi'>
      <alias name='scsi1'/>
      <address type='spapr-vio' reg='0x3000'/>
    </controller>
    <interface type='bridge'>
      <mac address='52:54:c0:a8:7a:73'/>
      <source bridge='virbr0'/>
      <target dev='vnet12'/>
      <model type='virtio-net'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
    </interface>
    <serial type='pty'>
      <source path='/dev/pts/13'/>
      <target port='0'/>
      <alias name='serial0'/>
      <address type='spapr-vio' reg='0x30000000'/>
    </serial>
    <console type='pty' tty='/dev/pts/13'>
      <source path='/dev/pts/13'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
      <address type='spapr-vio' reg='0x30000000'/>
    </console>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </memballoon>
  </devices>
  <seclabel type='dynamic' model='selinux' relabel='yes'>
    <label>system_u:system_r:svirt_t:s0:c238,c786</label>
    <imagelabel>system_u:object_r:svirt_image_t:s0:c238,c786</imagelabel>
  </seclabel>
</domain>

3. during configuration of the disk, It fails to detect the USB driver, refer attached snapshot.
 
Install ISO Information: August 10th Build

** Affects: debian-installer (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: architecture-ppc64le bot-comment bugnameltc-114503 severity-critical targetmilestone-inin---
-- 
(Regression) Ubuntu 14.10 installation fails for pci-ohci USB disk
https://bugs.launchpad.net/bugs/1355686
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