|Fedora Test Days|
|Virtualization Test Day|
What to test?
Today's installment of Fedora Test Day will focus on Virtualization in Fedora 21. Test cases will basic virtualization workflow, some cool functionality, as well as new features introduced in Fedora 21.
The following cast of characters will be available for testing, workarounds, bug fixes, and general discussion.
- Cole Robinson (crobinso)
- Eric Blake (eblake on IRC)
- Kashyap Chamarthy (kashyap on IRC)
- Alexander Todorov (atodorov on IRC)
Before you begin testing, there are a few known bugs that should be taken into account:
- libvirt managed save occasionally fails with 'unexpected migration status in setup': https://bugzilla.redhat.com/show_bug.cgi?id=1015636
- virt-manager doesn't correctly report 'current' VM CPUs: https://bugzilla.redhat.com/show_bug.cgi?id=1016318
- Selinux denial on the host when enabling multiqueue nic in the guest: https://bugzilla.redhat.com/show_bug.cgi?id=1016326
- 'groupinstall virtualization' needs additional 'yum install libvirt-daemon-config-network': https://bugzilla.redhat.com/show_bug.cgi?id=1016606
- virt-manager fails creating /root/.cache/virt-manager, if you hit issues create that director manually: https://bugzilla.redhat.com/show_bug.cgi?id=1016435
- libvirt generates conflicting pci address when adding qxl device: https://bugzilla.redhat.com/show_bug.cgi?id=1016775
What's needed to test
For starters, your physical machine should have:
- Hardware virtualization support (e.g. Intel VT or AMD-V) (see Is My Guest Using KVM?).
- Up to 10-20Gb free disk space. Guest images take up a lot of space.
- Get the packages with:
yum groupinstall virtualization
As for getting the latest virt packages, you have a few options:
Virt Test Day Live CD
There's a Fedora 21 live CD image that already has all the required virtualization packages installed (though you should still
yum update after booting). You will probably want a good amount of RAM if using this option (greater than 4G) since you'll be using RAM for both a VM and running the live OS.
- Get the image:
wget -c http://fedorapeople.org/groups/virt/virt-testday-2013-10-08.iso
- For Live CD or USB setup instructions, see: FedoraLiveCD#Download_and_Create_Live_image_or_Live_USB
- If you have a really beefy machine, you can probably run the Live CD in a VM using nested virtualization! (see instructions below)
- After booting the livecd, make sure to do a yum update to get all the latest packages
Fedora 21 on a physical machine
The preferred testing platform is a fully updated Fedora 20 machine. You have a few options for getting the Fedora 20 bits:
Install with CD/DVD
You can download the Fedora 21 Alpha in various formats here.
Upgrade from Fedora 20
- The supported way is using 'fedup': FedUp#How_Can_I_Upgrade_My_System_with_FedUp.3F You may also find the instructions in the fedup test case useful for using fedup to upgrade to a pre-release.
- Upgrade using 'yum': This method is not officially supported, but is very commonly used by developers. If you're a power user this is a possible option!
Run Fedora 21 in a VM with nested virtualization
Do you have a new machine with a ton of ram and storage space, running Fedora 20? Nested virt might be an option! This allows you to create KVM guests inside a Fedora 21 VM.
Fedora 21 virt packages on Fedora 20
If you aren't ready to make the jump to Fedora 21, this is the next best thing! Run latest virt packages on Fedora 20 from the virt-preview repo:
Areas to test
All these tests have an entry in the Test Results table, please record them there.
If you don't already have a VM available, run through one of these test cases. A fully functioning VM is required for every other test case!
- Guest install via CDROM/ISO
- Guest install via URL
- Guest install via PXE (only if you have a pre-existing PXE setup)
- Import existing VM image (only if you have a pre-existing VM image)
These are recurring tests of standard virt features, they ensure nothing obvious is broken.
- VM Lifecycle (start, stop, save, clone, delete, ...)
- VM serial console login
- Host USB device hotplug
- Enabling nested virtualization for a VM
- Live migration (steps included for doing this with a single physical host)
- Host PCI device assignment
- Change CDROM media for running VM
- Spice features: copy/paste, drag/drop, USB redirection
New or improved features in Fedora 21:
- Virt ACLs
- Import ARM guest on your x86 machine and manage with virt-manager/libvirt
- Snapshot UI in virt-manager
- VM CPU hotplug
- Enable multiqueue virtio networking
These tests aren't listed in the 'test results' table, but consider giving them a spin and reporting any issues on IRC or bugzilla.
libguestfs and tools
You will need Fedora 21 (host) and at least one guest (but the more the merrier).
# yum install '*guestf*'
and run through the tests here: http://libguestfs.org/guestfs-testing.1.html
Previous test cases
Some test cases used in previous test days. Still useful to test for regressions!
Fedora 19 features:
- Virtio RNG (Random Number Generator)
- Live migration without shared storage (steps included for doing this with a single physical host)
- Host PCI device assignment using VFIO
Fedora 18 features:
- Live VM disk backup
- VM suspend/hibernate
- VM sandboxing w/ syscall filters
- VM IO throttling
- VM PV EOI performance optimization
- USB3 device passthrough