Hi Kashyap, Richard,

Before I moved on to new things I wanted to let you know that it took a bit of package finesse and some time, but I was able to use the git repo make it through
libguestfs-test-tool without issue on this platform:

Linux cubietruck 4.3.0-1-armmp-lpae #1 SMP Debian 4.3.5-1 (2016-02-06) armv7l GNU/Linux

The log is attached.  I now have bigger brain about arm-kvm thanks to your help.

Cheers,

Thomas

Richard W.M. Jones wrote:
On Mon, Feb 22, 2016 at 12:59:47PM +0100, Kashyap Chamarthy wrote:

root@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.

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