Linux Mint 12 : Build qemu-kvm , libvirt , virt-manager from source ( not apt-get ! )

Here’s an explanation of how to build qemu-kvm , libvirtd and virt-manager from source including trial and error.

# uname -ri 3.0.0-15-generic x86_64 # tail -1 /etc/lsb-release DISTRIB_DESCRIPTION="Linux Mint 12 Lisa"

[ uninstall kvm , libvirt-bin , virt-manager via apt-get if you have installed them ]

# apt-get remove kvm libvirt-bin virt-manger –y # apt-get autoremove

back up the current libvirtd configuration.

# tar czvf libvirt.tgz /etc/libvirt/ tar: メンバ名から先頭の `/' を取り除きます /etc/libvirt/ /etc/libvirt/storage/ /etc/libvirt/storage/default.xml /etc/libvirt/storage/disk1.xml /etc/libvirt/storage/autostart/ /etc/libvirt/storage/autostart/default.xml /etc/libvirt/storage/autostart/disk1.xml /etc/libvirt/qemu/ /etc/libvirt/qemu/centos6-32-vm1.xml /etc/libvirt/qemu/centos6-64-vm1.xml /etc/libvirt/qemu/networks/ /etc/libvirt/qemu/networks/autostart/ /etc/libvirt/qemu/networks/autostart/default.xml

rm /usr/bin/kvm which is a symbolic file to /usr/bin/qemu-system-x86_64.

# rm -rf /usr/bin/kvm

[ build qemu-kvm from source ]

download qemu-kvm-1.0.tar.gz from http://sourceforge.net/projects/kvm/files/qemu-kvm/1.0/

and build it.

# tar xzvf qemu-kvm-1.0.tar.gz # ./configure # make # make install # ls /usr/local/bin/qemu-* /usr/local/bin/qemu-ga   /usr/local/bin/qemu-nbd /usr/local/bin/qemu-img  /usr/local/bin/qemu-system-x86_64 /usr/local/bin/qemu-io # /usr/local/bin/qemu-system-x86_64 --version QEMU emulator version 1.0 (qemu-kvm-1.0), Copyright (c) 2003-2008 Fabrice Bellard

[ build libvirt ]

download libvirt-0.9.9 tar.gz from http://libvirt.org/sources/ and build it.

# tar xzvf libvirt-0.9.9.tar.gz # cd libvirt-0.9.9/

nn , error

# ./configure checking for LIBXML... no checking libxml2 xml2-config >= 2.6.0 ... configure: error: Could not find libxml2 anywhere (see config.log for details).

I have already installed libxml2 via apt-get

# dpkg -l libxml2 | tail -1 ii  libxml2                                2.7.8.dfsg-4ubuntu0.1                        GNOME XML library # dpkg -L  libxml2 | grep "/lib/" /usr/lib/libxml2.so.2.7.8 /usr/lib/libxml2.so.2

error

# ./configure --with-libxml=/usr/lib checking pkg-config is at least version 0.9.0... yes checking libxml2 /usr/lib/bin/xml2-config >= 2.6.0 ... configure: error: Could not find libxml2 anywhere (see config.log for details).

install libxml2-dev

# apt-get install libxml2-dev -y

# dpkg -l libxml2* ii  libxml2        2.7.8.dfsg-4ub GNOME XML library ii  libxml2-dev    2.7.8.dfsg-4ub Development files for the GNOME XML library ii  libxml2-utils  2.7.8.dfsg-4ub XML utilities

try again. another error.

# ./configure configure: error: You must install the GnuTLS library in order to compile and run libvirt

install gnutls via apt-get

# apt-get install gnutls-bin gnutls-dev

# ./configure configure: error: You must install device-mapper-devel/libdevmapper >= 1.0.0 to compile libvirt

# apt-get install libdevmapper-dev libdevmapper

# ./configure configure: error: You must install python-devel to build Python bindings

# apt-cache search python-dev

# ./configure checking for LIBNL... no configure: error: libnl-devel >= 1.1 is required for macvtap support

# apt-get install libnl1 libnl-dev

# ./configure configure:      Readline: no configure:        Python: yes configure:        DTrace: no configure:   XML Catalog: /etc/xml/catalog configure:   Init script: check configure: configure: Privileges configure: configure:       QEMU: root:root configure:#

# make # make install

# ls /usr/local/bin/vir* /usr/local/bin/virsh         /usr/local/bin/virt-install /usr/local/bin/virt-clone    /usr/local/bin/virt-pki-validate /usr/local/bin/virt-convert  /usr/local/bin/virt-xml-validate /usr/local/bin/virt-image # /usr/local/sbin/libvirtd --version /usr/local/sbin/libvirtd (libvirt) 0.9.9

[ build virt-manager ]

download virtinst 0.600.1 and virt-manager 0.90.1 from http://virt-manager.org/download.html

At first , build virtinst

# tar xzvf virtinst-0.600.1.tar.gz # cd virtinst-0.600.1 # python setup.py install

build virt-manager

# tar xzvf virt-manager-0.9.1.tar.gz # cd virt-manager-0.9.1/ # ./configure configure: Required virtinst:               0.600.1 configure: Default qemu user:               root configure: Install TUI:                     yes configure: Enable unsupported RHEL options: yes configure: Preferred distros:               none configure: Libvirt packages:                none configure: KVM packages:                    none configure: Default graphics:                vnc # make # ls /usr/local/bin/virt-ma* /usr/local/bin/virt-manager  /usr/local/bin/virt-manager-tui

Okay , get everything done , I think..

[ start libvirtd ]

start libvirtd ( -d : run libvirtd as daemon. )

# /usr/local/sbin/libvirtd –d

[ connect to libvirt via virsh ]

# LANG=C /usr/local/bin/virsh virsh # version Compiled against library: libvir 0.9.9 Using library: libvir 0.9.9 Using API: QEMU 0.9.9 Running hypervisor: QEMU 1.0.0

[ connect to libvirt via virt-manager ]

$ /usr/local/bin/virt-manager    import urlgrabber.progress as progress ImportError: No module named urlgrabber.progress

install python-urlgrabber

# apt-get install python-urlgrabber -y

$ /usr/local/bin/virt-manager    import gtkvnc ImportError: No module named gtkvnc

# apt-get install –y libgtk-vnc-1.0-0 python-gtk-vnc

GUI has appeared..  however I can’t connect to livbirtd.

Unable to connect to libvirt:  File "/usr/local/lib/python2.7/dist-packages/libvirt.py", line 102, in openAuth    if ret is None:raise libvirtError('virConnectOpenAuth() failed')

I can connect to libvirtd via virsh , so I think libvirtd is running.

# LANG=C /usr/local/bin/virsh -c qemu:///system Welcome to virsh, the virtualization interactive terminal. virsh # version Compiled against library: libvir 0.9.9 Using library: libvir 0.9.9 Using API: QEMU 0.9.9 Running hypervisor: QEMU 1.0.0 virsh # quit

Let’s check the libvirt.log .. Auth fail from a user which UID is 1000.
UID 1000 is an account which I always use when logging on Mint.

# tail -f /usr/local/var/log/libvirt/libvirtd.log error : remoteDispatchAuthPolkit:2521 : PolicyKit がアクション org.libvirt.unix.manage を PID 18318, UID 1000 から拒否しま した: 終了ステータス 127 error : remoteDispatchAuthPolkit:2540 : 認 証に失敗しました: 認証に失敗しました # egrep 1000 /etc/group hattori:x:1000:

confirm whether or not UID 1000 can connect to libvirt.
nnn , authentication failed when connecting to libvirt with UID 1000.

# /usr/local/bin/virsh -c qemu+ssh://hattori@127.0.0.1/system hattori@127.0.0.1's password: error: 認証に失敗しました: 認証に失敗しました error: failed to connect to the hypervisor

how about root user ? .. can connect to libvirt with root user.
It might be permission problems..

# /usr/local/bin/virsh -c qemu+ssh://root@127.0.0.1/system root@127.0.0.1's password: Welcome to virsh, the virtualization interactive terminal. virsh # quit

run libvird with debug mode and start virt-manager to locate the problem.

# LIBVIRT_DEBUG=1 /usr/local/sbin/libvirtd > libvirt.logs 2>&1 # /usr/local/bin/virt-manager

debug logs.

Error checking for authorization org.libvirt.unix.manage: GDBus.Error:org.freede sktop.PolicyKit1.Error.Failed: Action org.libvirt.unix.manage is not registered 20844: error : remoteDispatchAuthPolkit:2521 : PolicyKit がアクション org.libvirt.unix.manage を PID 20894, UID 1000 から拒否しま した: 終了ステータス 127 20844: debug : remoteDispatchAuthPolkit:2554 : RPC_SERVER_CLIENT_AUTH_DENY: client=0x7fa510000ae0 auth=2 identity=pid:20894,uid:1000 20844: error : remoteDispatchAuthPolkit:2540 : 認 証に失敗しました: 認証に失敗しました

PolicyKit ?
Let’s google it.

It seems that Policy kit is an ACL for user authentication  
http://libvirt.org/auth.html

Allow UID 1000 named hattori to connect to libvirtd

# cat /etc/polkit-1/localauthority/50-local.d/50-org.libvirt.access.pkla [libvirt Management Access] Identity=unix-user:hattori Action=org.libvirt.unix.manage ResultAny=yes ResultInactive=yes ResultActive=yes

try again ,,, same error

Error checking for authorization org.libvirt.unix.manage: GDBus.Error:org.freede sktop.PolicyKit1.Error.Failed: Action org.libvirt.unix.manage is not registered error : remoteDispatchAuthPolkit:2521 : PolicyKit がアクション org.libvirt.unix.manage を PID 20894, UID 1000 から拒否しま した: 終了ステータス 127 20844: debug : remoteDispatchAuthPolkit:2554 : RPC_SERVER_CLIENT_AUTH_DENY: client=0x7fa510000ae0 auth=2 identity=pid:20894,uid:1000 20844: error : remoteDispatchAuthPolkit:2540 : 認 証に失敗しました: 認証に失敗しました

oh ,, I also need to edit libvirtd.conf.

# groupadd libvirt # usermod -G libvirt -a hattori

# egrep unix_sock /usr/local/etc/libvirt/libvirtd.conf | grep -v ^# unix_sock_group = "libvirt" unix_sock_ro_perms = "0777" unix_sock_rw_perms = "0770"

nn still error

Error checking for authorization org.libvirt.unix.manage: GDBus.Error:org.freede sktop.PolicyKit1.Error.Failed: Action org.libvirt.unix.manage is not registered error : remoteDispatchAuthPolkit:2521 : PolicyKit がアクション org.libvirt.unix.manage を PID 23628, UID 1000 から拒否しま した: 終了ステータス 127

nnn , okey ,, disable Policykit auth.

# egrep '(unix_sock|none)' /usr/local/etc/libvirt/libvirtd.conf | grep -v ^# unix_sock_group = "libvirt" unix_sock_ro_perms = "0777" unix_sock_rw_perms = "0770" auth_unix_ro = "none" auth_unix_rw = "none"

try again

# LIBVIRT_DEBUG=1 /usr/local/sbin/libvirtd -d > libvirt.logs 2>&1

I can connect to libvirt with UID 1000.

# LANG=C /usr/local/bin/virsh -c qemu+ssh://hattori@127.0.0.1/system hattori@127.0.0.1's password: Welcome to virsh, the virtualization interactive terminal. virsh # version Compiled against library: libvir 0.9.9 Using library: libvir 0.9.9 Using API: QEMU 0.9.9 Running hypervisor: QEMU 1.0.0 virsh # quit

try to connect libvirtd via virt-manager. another error

$ /usr/local/bin/virt-manager –debug    if ret is None:raise libvirtError('virConnectOpenAuth() failed') libvirtError: Failed to connect socket to '/usr/local/var/run/libvirt/libvirt-sock': Permission denied

# egrep '(unix_sock|none)' /usr/local/etc/libvirt/libvirtd.conf | grep -v ^# unix_sock_group = "libvirt" unix_sock_ro_perms = "0777" unix_sock_rw_perms = "0777" unix_sock_dir = "/usr/local/var/run/libvirt" auth_unix_ro = "none" auth_unix_rw = "none"

can connect to libvirtd both virsh and virt-manager with UID 1000.

[ fly a VM on KVM 1.0 ]

make a symbolic link.
virsh or virt-manager seems to check /usr/bin/kvm or /usr/local/bin/kvm when starting a VM.

# ln -s /usr/local/bin/qemu-system-x86_64 /usr/bin/kvm

install a VM via virsh or virt-manager.

a VM , CentOS6 32bit , is running on KVM 1.0.

virsh # list –all Id Name                 State ----------------------------------  1 centos6-32-vm1       running virsh # qemu-monitor-command centos6-32-vm1 'info version 1.0.0 (qemu-kvm-1.0)