QEMU [FreeBSD WIKI]

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====== PowerPC64 QEMU Instructions ======

===== FreeBSD host =====

%%FreeBSD%% can run as VM in QEMU.
%%FreeBSD%% 13.1-RELEASE supports for virtio devices.

This example installs %%FreeBSD%% 13.1-RELEASE using the following environment/settings:

Host:

  * Any running %%FreeBSD%%
  * Instructions tested on %%FreeBSD%%/amd64 running 14-current from August 2022

Guest:

  * Machine: pseries
  * SMP/CPU count: 8
  * RAM: 4GB
  * Disk: 100GB
  * Network Controller: virtio
  * Disk Controller: virtio
  * Installer Image: %%FreeBSD%%-13.1-RELEASE-powerpc-powerpc64-disc1.iso (taken from [[https://download.freebsd.org/ftp/releases/powerpc/powerpc64/ISO-IMAGES/13.1/FreeBSD-13.1-RELEASE-powerpc-powerpc64-disc1.iso]])
  * Video: disabled, using console. Remove "-vga none -nographic" from commands bellow if you want use default VNC video output

=== Create a disk ===

''%%qemu-img create -f qcow2 freebsd-disk.qcow2 100G%%''

=== Boot installer disc ===

''%% qemu-system-ppc64 -smp 8 -m 4g -drive file=freebsd-disk.qcow2,format=qcow2,if=virtio -net nic,model=virtio -machine pseries,cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken -vga none -nographic -cdrom FreeBSD-13.1-RELEASE-powerpc-powerpc64-disc1.iso -boot d%%''

=== Boot installed system ===

Same command used for installing it, but removing -cdrom and -boot options:

''%%qemu-system-ppc64 -smp 8 -m 4g -drive file=freebsd-disk.qcow2,format=qcow2,if=virtio -net nic,model=virtio -machine pseries,cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken -vga none -nographic%%''

==== Other Methods ====

The methods outlined below for Linux for other ways of acquiring images work for %%FreeBSD%% host, but with the same command line differences to take out kvm acceleration.

===== Linux host =====

%%FreeBSD%% can run as VM in QEMU.
%%FreeBSD%% 13.1-RELEASE supports for virtio devices. Huge Pages is also not mandatory anymore when running the VM on Linux hosts

==== Installing from disc1.iso ====

This example installs %%FreeBSD%% 13.1-RELEASE using the following environment/settings:

Host:

  * Machine: IBM with POWER8 processor
  * OS: Ubuntu 18.04 LTS (PowerPC64 Little Endian)
  * QEMU Version: 4.2.0

Guest:

  * Machine: pseries with kvm acceleration
  * SMP/CPU count: 8
  * RAM: 4GB
  * Disk: 100GB
  * Network Controller: virtio
  * Disk Controller: virtio
  * Installer Image: %%FreeBSD%%-13.1-RELEASE-powerpc-powerpc64-disc1.iso (taken from [[https://download.freebsd.org/ftp/releases/powerpc/powerpc64/ISO-IMAGES/13.1/FreeBSD-13.1-RELEASE-powerpc-powerpc64-disc1.iso]])
  * Video: disabled, using console. Remove "-vga none -nographic" from commands bellow if you want use default VNC video output

=== Create a disk ===

''%%qemu-img create -f qcow2 freebsd-disk.qcow2 100G%%''

=== Boot installer disc ===

''%%qemu-system-ppc64 -enable-kvm -smp 8 -m 4g -drive file=freebsd-disk.qcow2,format=qcow2,if=virtio -net nic,model=virtio -machine pseries,accel=kvm,cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken -vga none -nographic -cdrom FreeBSD-13.0-RELEASE-powerpc-powerpc64-disc1.iso -boot d%%''

=== Boot installed system ===

Same command used for installing it, but removing -cdrom and -boot options:

''%%qemu-system-ppc64 -enable-kvm -smp 8 -m 4g -drive file=freebsd-disk.qcow2,format=qcow2,if=virtio -net nic,model=virtio -machine pseries,accel=kvm,cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken -vga none -nographic%%''

==== Booting FreeBSD CI's ready-to-use disk image (for developers) ====

%%FreeBSD%% CI infrastructure builds a bootable disk image in qcow2 format that's normally used by CI scripts to validate %%FreeBSD%% sanity every time a change is made in the code base.
This can also be used by a user or developer wanting to test stuff with a minimal pre-installed, pre-configured system without installing it from the classic CD/DVD disc.

1. Take latest snapshot
''%%wget/fetch https://artifact.ci.freebsd.org/snapshot/head/latest_vm/powerpc/powerpc64/disk.qcow2.zst%%''
2. Uncompress it
''%%unzstd /home/alfredo.junior/tmp/disk.qcow2.zst%%''
3. Boot
''%%qemu-system-ppc64 -enable-kvm -smp 8 -m 4g -drive file=disk.qcow2,format=qcow2,if=virtio -net nic,model=virtio -machine pseries,accel=kvm,cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken -vga none -nographic%%''

Default user is root without a password.

===== UNICAMP OpenPower Minicloud =====

The [[https://openpower.ic.unicamp.br/minicloud/|UNICAMP Minicloud]] is a %%OpenPower%% Cloud maintained by University of Campinas (Brazil). They are an academic member of the %%OpenPower%% Foundation and provides free access to POWER virtual machines that can be used for development, testing or migration of applications to POWER. The virtual machines of Minicloud run on %%OpenStack%%, which supports running a large number of virtual machines.

Since 20200404 a %%FreeBSD%% 13-CURRENT pre-made image has been made available for the public. It can be found in the list of pre-made images under the name "FreeBSD13-head-r359571".

After launching "FreeBSD13-head-r359571", it is recommended to:

  * Set a password for "root" user
  * Create a regular user (to be used in the SSH forwarding)

==== Configure network ====

<code>
echo 'ifconfig_vtnet0=DHCP' >> /etc/rc.conf
service netif restart
</code>

==== Expand disk partition ====

Run the command bellow and take notes from partition 3 size (16GB at the time of this writing) and the free size.

''%%gpart show%%''

Resize partition 3 to the new size. If 'gpart show ' shows 16G used on partition 3 and 23G are free, you can resize it to rougly 38G (16-23-1)

''%%gpart resize -i 3 -s 38g -a 4k vtbd0%%''

Resize UFS filesystem

''%%growfs /%%''