On Wed, Apr 04, 2012 at 02:08:33PM +0100, Richard W.M. Jones wrote:
Ubuntu are now supplying a libguestfs package (or to be more accurate, they are just copying the Debian package) but it doesn't work out of the box.
There is a bug in apt which we worked around in febootstrap 3.14, but the supplied version of febootstap is only 3.12. Hence you will get errors like this during installation:
febootstrap: aptitude: error: no file was downloaded corresponding to package <some package name>
and you'll get the same error if you try to build from source.
The solution is to build febootstrap 3.14:
cd /tmp sudo apt-get build-dep febootstrap sudo apt-get install devscripts apt-get source febootstrap wget http://people.redhat.com/~rjones/febootstrap/files/febootstrap-3.14.tar.gz tar zxf febootstrap-3.14.tar.gz cd febootstrap-3.14 rm -rf debian cp -a ../febootstrap-3.12/debian . vi debian/changelog # change the first line: 3.12 -> 3.14 debuild -i -uc -us -b
That will create an febootstrap 3.14 .deb file in /tmp which you can install:
sudo dpkg -i ../febootstrap_3.14-1_amd64.deb
Then you can go ahead and use the libguestfs package:
sudo update-guestfs-appliance
or compile libguestfs from source.
There is another problem which you may hit, if you add a completely blank disk to libguestfs (this also affects libguestfs-test-tool):
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/931371 https://bugzilla.kernel.org/show_bug.cgi?id=42778
I've found a way around the last problem, which seems to be caused by the version of qemu-kvm in Ubuntu, not the kernel. If you compile qemu from source and use that, then it works (for me). Do: git clone git://git.qemu.org/qemu.git cd qemu ./configure make Then create a 'qemu.wrapper' file containing (edited): #!/bin/sh - qemudir=/home/user/d/qemu exec $qemudir/x86_64-softmmu/qemu-system-x86_64 -L $qemudir/pc-bios "$@" and: chmod +x qemu.wrapper (See: http://libguestfs.org/guestfs.3.html#qemu_wrappers ) Then set the environment variable: export LIBGUESTFS_QEMU=/home/user/d/qemu/qemu.wrapper Then run libguestfs / virt-tools programs as normal (albeit slower because it's qemu, not full upstream KVM). Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://et.redhat.com/~rjones/virt-top