[Libguestfs] Cubietruck: QEMU, KVM and Fedora

Richard W.M. Jones rjones at redhat.com
Mon Feb 22 14:06:38 UTC 2016


On Mon, Feb 22, 2016 at 12:59:47PM +0100, Kashyap Chamarthy wrote:
> > root at cubietruck:~# /usr/bin/libguestfs-test-tool -V
> > libguestfs-test-tool 1.30.6
[...]
> > [00633ms] /usr/bin/qemu-system-arm \
> >     -global virtio-blk-device.scsi=off \
> >     -nodefconfig \
> >     -enable-fips \
> >     -nodefaults \
> >     -display none \
> >     -M virt \
> >     -cpu host \
> >     -machine accel=kvm:tcg \
> >     -m 500 \
> >     -no-reboot \
> >     -rtc driftfix=slew \
> >     -global kvm-pit.lost_tick_policy=discard \
> >     -kernel /var/tmp/.guestfs-0/appliance.d/kernel \
> >     -dtb /var/tmp/.guestfs-0/appliance.d/dtb \
> >     -initrd /var/tmp/.guestfs-0/appliance.d/initrd \
> >     -device virtio-scsi-device,id=scsi \
> >     -drive
> > file=/tmp/libguestfssaEUV0/scratch.1,cache=unsafe,format=raw,id=hd0,if=none
> > \
> >     -device scsi-hd,drive=hd0 \
> >     -drive
> > file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none
> > \
> >     -device scsi-hd,drive=appliance \
> >     -device virtio-serial-device \
> >     -serial stdio \
> >     -chardev socket,path=/tmp/libguestfssaEUV0/guestfsd.sock,id=channel0 \
> >     -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \
> >     -append 'panic=1 mem=500M console=ttyAMA0 udevtimeout=6000
> > udev.event-timeout=6000 no_timer_check acpi=off printk.time=1
> > cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1
> > TERM=xterm-256color'
> > qemu-system-arm: Warning: global kvm-pit.lost_tick_policy has invalid class
> > name
> > Alarm clock

The main problem is that the original poster's kernel doesn't boot on
top of qemu.  I can't see from the logs what kernel they are trying to
use, but that's going to be a problem.

Strongly suggest:

(a) Switch to libguestfs from git, since the version you are using is
    8 months old, and I completely changed how DTBs are handled in the
    latest version.

(b) Don't run stuff as root.

(c) With the version from git, do:

      ./configure
      rm -rf tmp/.guestfs-*
      make clean
      make
      make quickcheck

and let us see the complete log of that.

Instructions for building libguestfs from source can be found here:

  http://libguestfs.org/guestfs-building.1.html

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-top is 'top' for virtual machines.  Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://people.redhat.com/~rjones/virt-top




More information about the Libguestfs mailing list