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[Matt Riedemann <mriedem@xxxxxxxxxx>]

** Also affects: nova/newton
   Importance: Undecided
       Status: New

** Changed in: nova
   Importance: Undecided => Medium

** Changed in: nova/newton
   Importance: Undecided => Medium

** Changed in: nova/newton
       Status: New => In Progress

** Changed in: nova/newton
     Assignee: (unassigned) => Lee Yarwood (lyarwood)

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https://bugs.launchpad.net/bugs/1591827

Title:
  Scsi device can't be recognized in Guest in aarch64

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) newton series:
  In Progress

Bug description:
  Description
  ===========
  Using nova to create an instance in Aarch64,the disk.config is the 'cdrom' and has the type of 'scsi'.After instance creation ,log into the instance and can't see the cdrom device.

  Steps to reproduce
  ==================
  1.Using devstack to deploy openstack. Using default local.conf.

  2.Upload the aarch64 image with glance.
  $ source ~/devstack/openrc admin admin
  $ glance image-create --name image-arm64.img --disk-format qcow2 --container-format bare --visibility public --file images/image-arm64-wily.qcow2 --progress
  $ glance image-create --name image-arm64.vmlinuz --disk-format aki --container-format aki --visibility public --file images/image-arm64-wily.vmlinuz --progress
  $ glance image-create --name image-arm64.initrd --disk-format ari --container-format ari --visibility public --file images/image-arm64-wily.initrd --progress
  $ IMAGE_UUID=$(glance image-list | grep image-arm64.img | awk '{ print $2 }')
  $ IMAGE_KERNEL_UUID=$(glance image-list | grep image-arm64.vmlinuz | awk '{ print $2 }')
  $ IMAGE_INITRD_UUID=$(glance image-list | grep image-arm64.initrd | awk '{ print $2 }')
  $ glance image-update --kernel-id ${IMAGE_KERNEL_UUID} --ramdisk-id ${IMAGE_INITRD_UUID} ${IMAGE_UUID}
  3.Set the scsi model:
  $ glance image-update --property hw_disk_bus --property hw_scsi_model=virtio-scsi ${IMAGE_UUID}

  4.nova add keypair
  $ nova keypair-add default --pub-key ~/.ssh/id_rsa.pub

  5.Launch the instance:
  $ image=$(nova image-list | egrep "image-arm64.img"'[^-]' | awk '{ print $2 }')
  $ nova boot --flavor m1.small--image ${image} --key-name default test-arm64

  6.After creation,use ssh to login into the instance.In the guest:
  $ ls -l /dev
  The we can see that cdrom doesn't exist.

  Expected result
  ===============
  After spawningn the instance, login into the guest :
  $ ls -l /dev
  We can see the cdrom is here.

  Actual result
  =============
  The xml file of the disk.config is generated by nova ,but can't work.

  Environment
  ===========
  1. Exact version of OpenStack you are running. See the following
    list for all releases: http://docs.openstack.org/releases/
     Nova development, commit code: 279f1a9bf65c4b904e01d26f0619a62ed99fc4d3

  2. Which hypervisor did you use?
      Libvirt+KVM
      $ kvm --version
      QEMU emulator version 2.5.0 (Debian 1:2.5+dfsg-5ubuntu10.1), Copyright (c) 2003-2008 Fabrice Bellard
      $ libvirtd --version
      libvirtd (libvirt) 1.3.1

  2. Which storage type did you use?
     In the host file system,all in one physics machine.
  stack@u202154:/opt/stack/nova$ df -hl
  Filesystem Size Used Avail Use% Mounted on
  udev 7.8G 0 7.8G 0% /dev
  tmpfs 1.6G 61M 1.6G 4% /run
  /dev/sda2 917G 41G 830G 5% /
  tmpfs 7.9G 0 7.9G 0% /dev/shm
  tmpfs 5.0M 0 5.0M 0% /run/lock
  tmpfs 7.9G 0 7.9G 0% /sys/fs/cgroup
  /dev/sda1 511M 888K 511M 1% /boot/efi
  cgmfs 100K 0 100K 0% /run/cgmanager/fs
  tmpfs 1.6G 0 1.6G 0% /run/user/1002
  tmpfs 1.6G 0 1.6G 0% /run/user/1000
  tmpfs 1.6G 0 1.6G 0% /run/user/0

  3. Which networking type did you use?
     nova-network

  4. Environment information:
     Architecture : AARCH64
     OS: Ubuntu 16.04

  Detailed log info is in the accessory.
  The guest xml is also in the log info.

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