The following 89 packages are going to be installed:

- cyrus-sasl-2.1.27-1.1.mga7.x86_64
- edk2-aarch64-20190308stable-1.mga7.nonfree.noarch
- edk2-ovmf-20190308stable-1.mga7.nonfree.noarch
- edk2-ovmf-ia32-20190308stable-1.mga7.nonfree.noarch
- grub-0.97-48.1.mga7.x86_64
- ipxe-roms-qemu-20190125-1.mga7.noarch
- kernel-server-5.1.14-1.mga7-1-1.mga7.x86_64
- kernel-server-5.4.6-2.mga7-1-1.mga7.x86_64
- kernel-server-latest-5.4.6-2.mga7.x86_64
- lib64brlapi0.6-5.5-7.mga7.x86_64
- lib64cacard0-2.6.1-2.mga7.x86_64
- lib64capstone4-4.0.1-1.mga7.x86_64
- lib64ibverbs1-1.2.1-3.mga7.x86_64
- lib64iscsi8-1.18.0-5.mga7.x86_64
- lib64nl-route3_200-3.4.0-3.mga7.x86_64
- lib64rdmacm1-1.1.0-3.mga7.x86_64
- lib64sasl2-plug-anonymous-2.1.27-1.1.mga7.x86_64
- lib64sasl2-plug-login-2.1.27-1.1.mga7.x86_64
- lib64sasl2-plug-plain-2.1.27-1.1.mga7.x86_64
- lib64snappy1-1.1.7-2.mga7.x86_64
- lib64spice-server1-0.14.2-1.mga7.x86_64
- lib64usbredirparser1-0.8.0-2.mga7.x86_64
- lib64virglrenderer0-0.7.0-1.20190424gitd1758cc09.mga7.x86_64
- lib64xen3.0-4.12.1-1.mga7.x86_64
- lib64yajl2-2.1.0-2.mga7.x86_64
- openbios-1.1.svn1394-3.mga7.noarch
- python3-lxml-4.3.0-1.mga7.x86_64
- qemu-4.0.0-2.mga7.x86_64
- qemu-audio-alsa-4.0.0-2.mga7.x86_64
- qemu-audio-oss-4.0.0-2.mga7.x86_64
- qemu-audio-pa-4.0.0-2.mga7.x86_64
- qemu-audio-sdl-4.0.0-2.mga7.x86_64
- qemu-block-curl-4.0.0-2.mga7.x86_64
- qemu-block-dmg-4.0.0-2.mga7.x86_64
- qemu-block-iscsi-4.0.0-2.mga7.x86_64
- qemu-block-nfs-4.0.0-2.mga7.x86_64
- qemu-block-ssh-4.0.0-2.mga7.x86_64
- qemu-common-4.0.0-2.mga7.x86_64
- qemu-img-4.0.0-2.mga7.x86_64
- qemu-system-aarch64-4.0.0-2.mga7.x86_64
- qemu-system-aarch64-core-4.0.0-2.mga7.x86_64
- qemu-system-alpha-4.0.0-2.mga7.x86_64
- qemu-system-alpha-core-4.0.0-2.mga7.x86_64
- qemu-system-arm-4.0.0-2.mga7.x86_64
- qemu-system-arm-core-4.0.0-2.mga7.x86_64
- qemu-system-cris-4.0.0-2.mga7.x86_64
- qemu-system-cris-core-4.0.0-2.mga7.x86_64
- qemu-system-lm32-4.0.0-2.mga7.x86_64
- qemu-system-lm32-core-4.0.0-2.mga7.x86_64
- qemu-system-m68k-4.0.0-2.mga7.x86_64
- qemu-system-m68k-core-4.0.0-2.mga7.x86_64
- qemu-system-microblaze-4.0.0-2.mga7.x86_64
- qemu-system-microblaze-core-4.0.0-2.mga7.x86_64
- qemu-system-mips-4.0.0-2.mga7.x86_64
- qemu-system-mips-core-4.0.0-2.mga7.x86_64
- qemu-system-moxie-4.0.0-2.mga7.x86_64
- qemu-system-moxie-core-4.0.0-2.mga7.x86_64
- qemu-system-nios2-4.0.0-2.mga7.x86_64
- qemu-system-nios2-core-4.0.0-2.mga7.x86_64
- qemu-system-or1k-4.0.0-2.mga7.x86_64
- qemu-system-or1k-core-4.0.0-2.mga7.x86_64
- qemu-system-ppc-4.0.0-2.mga7.x86_64
- qemu-system-ppc-core-4.0.0-2.mga7.x86_64
- qemu-system-riscv-4.0.0-2.mga7.x86_64
- qemu-system-riscv-core-4.0.0-2.mga7.x86_64
- qemu-system-s390x-4.0.0-2.mga7.x86_64
- qemu-system-s390x-core-4.0.0-2.mga7.x86_64
- qemu-system-sh4-4.0.0-2.mga7.x86_64
- qemu-system-sh4-core-4.0.0-2.mga7.x86_64
- qemu-system-sparc-4.0.0-2.mga7.x86_64
- qemu-system-sparc-core-4.0.0-2.mga7.x86_64
- qemu-system-tricore-4.0.0-2.mga7.x86_64
- qemu-system-tricore-core-4.0.0-2.mga7.x86_64
- qemu-system-unicore32-4.0.0-2.mga7.x86_64
- qemu-system-unicore32-core-4.0.0-2.mga7.x86_64
- qemu-system-x86-4.0.0-2.mga7.x86_64
- qemu-system-x86-core-4.0.0-2.mga7.x86_64
- qemu-system-xtensa-4.0.0-2.mga7.x86_64
- qemu-system-xtensa-core-4.0.0-2.mga7.x86_64
- qemu-ui-curses-4.0.0-2.mga7.x86_64
- qemu-ui-gtk-4.0.0-2.mga7.x86_64
- qemu-ui-sdl-4.0.0-2.mga7.x86_64
- qemu-user-4.0.0-2.mga7.x86_64
- seabios-bin-1.12.1-1.mga7.noarch
- seavgabios-bin-1.12.1-1.mga7.noarch
- sgabios-bin-0.20110622svn-2.mga7.noarch
- slof-0.1.git20160223-3.mga7.noarch
- xen-4.12.1-1.mga7.x86_64
- xen-hypervisor-4.12.1-1.mga7.x86_64

869MB of additional disk space will be used.

243MB of packages will be retrieved.

---

It set up the boot option, but I could not get Xen and Mageia running on Gnome to work on Nvidia.  It would go to a blank screen as soon as it said starting gnome.

---

So I moved the desk over to an Intel box and retried - this did actually work to the point I could get a screen and could confirm Xen is working

---

Installed Virt-Manager to administer.  It was able to connect to xen.  However, when attempting to build a VM from an ISO (non-Mageia) I get the following errors from the script.

Unable to complete install: 'An error occurred, but the cause is unknown'

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/create.py", line 2122, in _do_async_install
    guest.installer_instance.start_install(guest, meter=meter)
  File "/usr/share/virt-manager/virtinst/installer.py", line 415, in start_install
    doboot, transient)
  File "/usr/share/virt-manager/virtinst/installer.py", line 358, in _create_guest
    domain = self.conn.createXML(install_xml or final_xml, 0)
  File "/usr/lib64/python3.7/site-packages/libvirt.py", line 3840, in createXML
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirt.libvirtError: An error occurred, but the cause is unknown


----


Some important things, it will try to build the VM disk by default in the /var directory.  So, allocate that to it's own partition and make it large, otherwise it defaults to root which is generally restrictive.

----

Is xen able to run, yes.  So this may be a yes it is functional.  Not sure.

CC: (none) => brtians1
Whiteboard: (none) => feedback

Okay - tested more with Virtual Manager - as we don't have all of the tools in xen by default.

So - I think we need to upgrade Virtual Manager to make this work.

What do you need from me?

As per bug 26118, I had to replace vncviewer with one downloaded from
https://bintray.com/tigervnc/stable/tigervnc/1.10.1

Also found that with my current configuration, my Logitech, Inc. Unifying
Receiver was not working in the guest, so unplugged it and used a ps/2
wired keyboard instead.

Didn't bother trying to get networking working in the guest. Only tested
an hvm guest. Notes are as follows ...

Starting with a fully up-to-date real hardware install with task-xfce4-minimal,
and ...
# rpm -qa|grep kernel|sort -V
kernel-firmware-20190603-1.mga7
kernel-firmware-nonfree-20191220-1.mga7.nonfree
kernel-server-5.5.6-2.mga7-1-1.mga7
kernel-server-latest-5.5.6-2.mga7

This is on an install with a separate /boot partition

Found out that "urpmi xen" still requires grub legacy, and also qemu, so
switched the install to using grub legacy.

# urpmi xen, which also pulled in qemu

Prior to editing, /boot/grub/menu.lst only contained one entry with
title linux
kernel (hd0,1)/vmlinuz-5.5.6-server-2.mga7 BOOT_IMAGE=linux root=/dev/sda6 audit=0 vga=788
root (hd0,1)
initrd /initrd.img

Added an entry with ...

title xen server 5.5.6-server-2.mga7
kernel (hd0,1)/xen.gz dom0_mem=4096MB
module (hd0,1)/vmlinuz-5.5.6-server-2.mga7 BOOT_IMAGE=linux root=/dev/sda6 audit=0 vga=788
root (hd0,1)
module /initrd.img

Note: as /boot is on a separate partition (sda2), the kernel and module paths
do not start with /boot

Booted the system, selecting the xen boot entry, logged into the desktop normally.
[root@localhost ~]# ps -A|grep xen
   35 ?        00:00:00 xenbus
   36 ?        00:00:00 xenwatch
  956 ?        00:00:00 xenstored
 1063 ?        00:00:00 xenconsoled

Created the sparse file to contain the guest
dd if=/dev/zero of=/opt/hvmtest.img count=1 bs=4M seek=4k

This allows the guest to use up to 50% of the partition's free space.

# # cat /etc/xen/xentest.cfg 
name="xentest"
builder = "hvm"
memory = 4096
vcpus = 2
#vif = [ 'type=ioemu, model=e1000, mac=00:16:3E:29:QQ:QQ, bridge=xenbr1' ]
disk = [
        'tap:aio:/opt/hvmtest.img,xvda,w',
        'file:/s3/m7.1/Mageia-7.1-Live-Xfce-x86_64/Mageia-7.1-Live-Xfce-x86_64.iso,xvdb:cdrom,r'
       ]
boot = "dc"
vga = "qxl"
videoram = 128
vnc = 1
vnclisten  = "192.168.10.201" # (this is this host systems ip)
vncdisplay = 0
vncpasswd  = "munged"

# xl -v create /etc/xen/xentest.cfg -V

The live iso booted after entering the password. Didn't try installing.

In a separate terminal

# xl list
Name                                        ID   Mem VCPUs	State	Time(s)
Domain-0                                     0 12014     4     r-----     157.0
xentest                                      1  3968     2     r-----      61.4

Advisory committed to svn. Validating the update.

Whiteboard: (none) => MGA7-64-OK
Keywords: (none) => advisory, has_procedure, validated_update
CC: (none) => davidwhodgins, sysadmin-bugs

An update for this issue has been pushed to the Mageia Updates repository.

https://advisories.mageia.org/MGASA-2020-0113.html

Resolution: (none) => FIXED
Status: NEW => RESOLVED