Ubuntu
qemu package

QEMU not able to boot ubuntu 18.04 as a guest

Bug #1823152 reported by Sushant Gokhale
This bug report is a duplicate of:  Bug #1795857: enable CONFIG_DRM_BOCHS. Edit Remove
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This bug affects 1 person
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qemu (Ubuntu)
New
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Bug Description

Host information:
sushant@sushant-OptiPlex-7050:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.2 LTS
Release: 18.04
Codename: bionic

QEMU version:
sushant@sushant-OptiPlex-7050:~$ /usr/bin/qemu-system-x86_64 --version
QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.12)
Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers

I am trying to install xubuntu 18.04 as a qemu guest. The installation process goes smoothly and I reboot. After reboot, the boot process hangs with black screen and a blinking pointer. I used the following steps to install and boot the machine:

STEP 1:
sudo qemu-img create /var/lib/libvirt/images/xubuntu18_04.qcow2 30G

STEP 2:
sudo qemu-system-x86_64-spice -enable-kvm -cpu host -boot d -cdrom /home/sushant/Downloads/xubuntu-18.04.2-desktop-amd64.iso /var/lib/libvirt/images/xubuntu18_04.qcow2 -m 8G

STEP 3:
sudo qemu-system-x86_64-spice -enable-kvm -cpu host /var/lib/libvirt/images/xubuntu18_04.qcow2 -m 8G

I tried with ubuntu 18.04(deafult ubuntu) and it also hangs with error "removed slice user slice of gdm"

Also, if I install ubuntu 16.04 as guest, it boots smoothly.

What should be done?

See original description
Sushant Gokhale (gokhalesushant65)
description: updated
description: updated
Revision history for this message
Daniel Berrange (berrange) wrote :

Switched bug to the ubuntu qemu package, since qemu-system-x86_64-spice is not an upstream provided binary

Changed in qemu:
status: New → Invalid
Revision history for this message
Christian Ehrhardt  (paelzer) wrote :

$ ll /usr/bin/qemu-system-x86_64-spice
lrwxrwxrwx 1 root root 18 Mär 25 13:32 /usr/bin/qemu-system-x86_64-spice -> qemu-system-x86_64*

This is just a compat symlink for a very old history.
It should not be used directly anymore, but then also not matter.

I have not seen the same with Ubuntu Desktops, so I wonder what is different in your setup.

@Sushant - have you tried the same with e.g. libvirt (maybe through virt-manager), does it behave the same on that backend?
Furthermore this might be when the UI kicks in, could you set up (on install) an ssh client and login to log in when it is black and check what is going on at the time?

Revision history for this message
flumm (dominik-csapak) wrote :

maybe this is just this issue? https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795857

Thomas Huth (th-huth)
no longer affects: qemu
Revision history for this message
Sushant Gokhale (gokhalesushant65) wrote :

I am able to start the VM using 'virt-manager' but not using 'qemu-system-x86_64-spice'. I am using the command line so that I want pass 2 additional options viz.
1. -machine epc
2. -machine epc-below-4g
both for SGX virtualization.

I dont know how to ssh to the VM since I dont know the IP address of the guest machine.

Revision history for this message
Sushant Gokhale (gokhalesushant65) wrote :

I want to use 'qemu-system-x86_64-spice' so that I can use both the additional options.

Revision history for this message
Christian Ehrhardt  (paelzer) wrote :

Quite likely @flumm
-vga cirrus => works
-vga qxl => works
-vga std (the default) stays black.

For now @sushant add "-vga qxl" to your commandline please.

Also adding
 -net user,hostfwd=tcp::10022-:22 -net nic
And install+configuring openssh-server in the guest allows to take a look at the faild system

In fact it shows issues with the GPU as expected.
This is not a qemu but a kernel bug and I'll dup it.

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