[Hilko is in the best position to answer these questions. My own comments below] On Mon, May 21, 2012 at 02:04:40PM +0200, Zoltan wrote: > I'm trying to install libguestfs on Debian squeeze installed from > http://people.debian.org/~bengen/libguestfs/ > It does not work. Here are the details: > > I was able to install libguestfs-tools and its dependencies. > However, aptitude removed the following two packages: qemu and > qemu-system. I'm not sure if it's okay or not. If I try to install > those packages back, I get the following: > > # aptitude install qemu qemu-system > The following NEW packages will be installed: > qemu qemu-system{b} > 0 packages upgraded, 2 newly installed, 0 to remove and 0 not upgraded. > Need to get 16.6 MB of archives. After unpacking 50.9 MB will be used. > The following packages have unmet dependencies: > qemu-system: Depends: openbios-ppc (>= 1.0+svn1018) but > 1.0+svn640-1 is installed. > Depends: openbios-sparc (>= 1.0+svn1018) but > 1.0+svn640-1 is installed. > > My first question is, is this normal? Do I need the qemu and > qemu-system packages installed? What about these openbios > dependencies? libguestfs requires a recent qemu, and kernel>= 2.6.34. Specifically it needs the virtio-serial feature of qemu and the kernel. You can check if qemu has virtio-serial by doing: $ qemu -device \? 2>&1 | grep virtio-serial name "virtio-serial-pci", bus PCI, alias "virtio-serial" name "virtserialport", bus virtio-serial-bus name "virtconsole", bus virtio-serial-bus where you may need to replace 'qemu' by whatever name your qemu/KVM binary is really called. You can check if your kernel was compiled with virtio-serial by looking at /boot/config-* and checking for CONFIG_VIRTIO_CONSOLE=(y|m) > The next problem I have encountered: When I installed > libguestfs-tools, aptitude also installed the cryptsetup ( > cryptsetup/squeeze uptodate 2:1.1.3-4squeeze2 ) package as a > dependency. Since then, every time I run update-initramfs, I get > this: libguestfs uses host tools (such as cryptsetup) to process disk images (encrypted disk images in this case). So it depends on many host tools of this sort. > # update-initramfs -u > update-initramfs: Generating /boot/initrd.img-2.6.32-5-amd64 > cryptsetup: WARNING: failed to detect canonical device of /dev/md1 > cryptsetup: WARNING: could not determine root device from /etc/fstab > > I use RAID1 arrays md1 and md3 on my system. I googled "cryptsetup: > WARNING: failed to detect canonical device" and "cryptsetup: > WARNING: could not determine root device" to no avail. I mean, some > other people get these warnings too, but I haven't find any solution > to get rid of these warning messages. Since these are just warnings, > I guess I can just ignore these? > > > Now, back to the main issue: libguestfs does not work! When I run > libguestfs-test-tool, it stops with the following error: > > Failed to connect to virtio-serial channel. > > This is a fatal error and the appliance will now exit. > > Usually this error is caused by either QEMU or the appliance > kernel not supporting the vmchannel method that the > libguestfs library chose to use. Please run > 'libguestfs-test-tool' and provide the complete, unedited > output to the libguestfs developers, either in a bug report > or on the libguestfs redhat com mailing list. This indicates too old qemu and/or kernel. > When I try to use the virt-filesystems tool, after about 2-3 seconds > it stops with an error message that says: > > # virt-filesystems -a myimagefile.img > libguestfs: error: guestfs_launch failed, see earlier error messages > > Then in the log files I see these: > > libvirtd: 04:49:11.561: warning : qemudStartup:1832 : Unable to > create cgroup for driver: No such device or address > libvirtd: 04:49:11.729: warning : lxcStartup:1900 : Unable to create > cgroup for driver: No such device or address > > Basically, none of the libguestfs tools work on my Debian squeeze > system... What can I do to make libguestfs install properly? You need to get newer qemu and/or kernel. > I thought that maybe I should install a newer Linux kernel from > backports? Currently I use the following squeeze kernel: > linux-image-2.6.32-5-amd64/squeeze uptodate 2.6.32-45 > > Do I need to install 3.x kernel for libguestfs ? > > BTW, the following packages are installed from the squeeze-backports > (or Bengen's) repository on my system: > > febootstrap/squeeze uptodate 3.14-2~bpo60+1 > ipxe/squeeze uptodate 1.0.0+git-2.149b50-1~bpo60+1 > kvm/squeeze uptodate 1:0.14.1+dfsg-4~bpo60+1 > libguestfs0/squeeze uptodate 1:1.16.17-1~bpo60+1 > libguestfs-perl/squeeze uptodate 1:1.16.17-1~bpo60+1 > libguestfs-tools/squeeze uptodate 1:1.16.17-1~bpo60+1 > qemu-keymaps/squeeze uptodate 0.14.1+dfsg-3~bpo60+1 > qemu-kvm/squeeze uptodate 0.14.1+dfsg-4~bpo60+1 > qemu-user/squeeze uptodate 0.14.1+dfsg-3~bpo60+1 > qemu-utils/squeeze uptodate 0.14.1+dfsg-3~bpo60+1 > seabios/squeeze uptodate 1.6.3-2~bpo60+1 > vgabios/squeeze uptodate 0.7a-1~bpo60+1 > > Do I miss something? > > I would really appreciate if someone can point me to the right > direction! Thanks! Rich.