Re: [libvirt-users] qemu-monitor-command

-----Original Message----- From: Shawn Davis [mailto:sdavis17@hawk.iit.edu] Sent: Monday, March 26, 2012 12:56 PM To: 'Eric Blake' Cc: 'Alex Jia'; 'libvirt-users(a)redhat.com' Subject: RE: [libvirt-users] qemu-monitor-command -----Original Message----- From: Eric Blake [mailto:eblake@redhat.com] Sent: Monday, March 26, 2012 9:18 AM To: Shawn Davis Cc: 'Alex Jia'; libvirt-users(a)redhat.com Subject: Re: [libvirt-users] qemu-monitor-command On 03/24/2012 10:15 AM, Shawn Davis wrote: hope. What arguments are you passing to ./configure? If you build from libvirt.git and are on a Fedora-based system, then using ./autogen.sh --system will set up the preferred arguments to configure (these include --prefix=/usr --libdir=$prefix/$lib --sysconfdir=/etc --localstatedir=/var, where $lib is either lib or lib64). I'm not quite sure what default directories a debian-based install prefers; patches are welcome to ./autogen.sh to account for any differences to match debian-preferred layout. -- Eric Blake eblake(a)redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org I reinstalled my Ubuntu 11.10 Desktop OS again and I will run you through exactly what I had done prior to your last reply: QEMU 1. I downloaded qemu-kvm from here: http://sourceforge.net/projects/kvm/files/qemu-kvm/1.0/ 2. I extracted it to my home folder called testa 3. sudo apt-get install zlib1g-dev libglib2.0-dev as I know those are needed dependencies on this system 4. ./configure --prefix=/usr 5. make, then sudo make install 6. I looked and qemu-system-x86_64 is located in /usr/bin 7. From /usr/bin the command qemu-kvm-x86_64 --version gives me "QEMU emulator version 1.0" 8. I run sudo ./qemu-system-x86_64 which says could not access KVM kernel module, failed to init KVM, no accelerator found. 9. I run sudo /sbin/modprobe kvm-intel 10. I run sudo ./qemu-system-x86_64 again which now brings up "VNC server running on "127.0.0.1:5900' I cntl-c out of that. Libvirt 11. I downloaded libvirt-0.9.10.tar.gz from libvirt.org/sources/ and extract it to my home folder. 12. sudo apt-get install libxml2.dev gnutls-bin gnutls-dev libdevmapper-dev libdevmapper python-dev libnl1 libnl-dev libyajl-dev as I know those dependencies are needed. 13. ./configure --prefix=/usr 14. make, then sudo make install 15. which virsh gives me: /usr/bin/virsh 16. which libvirtd give me: /usr/sbin/libvirtd 17. I run sudo virsh version and get "Failed to reconnect to the hypervisor, no valid connection, failed to connect socket to /var/run/libvirt/libvirt-sock: no such file or directory. 18. I look in /var/run/libvirt and there is no libvirt-sock in there. 19. libvirtd --version returns libvirtd (libvirt) 0.9.10 20. sudo libvirtd start or restart returns libvirtd: unrecognized service. 21. sudo ./libvirtd -d 22. I again run sudo virsh version which returns: Copiled again library: libvir 0.9.10 Using library: libvir 0.9.10 Using API: QEMU 0.9.10 Running hypervisor: QEMU 1.0.0 Virt-Install 23. I run sudo apt-get virtinst HERE IS WHERE I RUN INTO SOME PROBLEMS: 24. virtinst starts installing and I eventually get this: Configuration file /etc/logrotate.d/libvirtd File on system created by you or by a script. File also in package provided by package maintainer What would you like to do about it? Your options are: Y : install the package maintainer's version N : keep your currently-installed version 25. I also get the same message for /etc/libvirt/libvird.conf, /etc/libvirt/lxc.conf, /etc/libvirt/nwfiler/clean-traffic.xml, /etc/libvirt/nwfilter/no-arp-spoofing.xml, /etc/libvirt/nwfilter/no-ip-spoofing.xml, /etc/libvirt/nwfilter/no-mac-spoofing.xml, /etc/libvirt/qemu/networks/default.xml, and /etc/libvirt/qemu.conf. 26. The first time I got to this point, I chose the N: keep your currently-installed version on all of those. 27. Then when I tried to do sudo virsh version, I got: virsh: /usr/lib/libvirt.so.0: version 'LIBVIRT_PRIVATE_0.9.2' not found (required by virsh) 28. I tried to restart libvirtd and is returned the same error msg. 29. This time I went through all of the steps and when I got to my step 24, I chose Y : install the package maintainer's version. 30. I got the same LIBVIRT_PRIVATE.... msg again when trying to run sudo virsh version. 31. I ran sudo ./libvirtd -d from the /usr/sbin location and received the same LIBVIRT_PRIVATE error message. So it looks like I can get QEMU and LIBVIRT installed from source okay but when I try to install virtinst in order to create my vm, I run into problems. Thoughts? Thanks! I got everything working and was able use the qemu-monitor-command with pmemsave now that I have the latest versions of qemu and libvirt. Thanks for all of the help! One last question on this. When I reboot, I get errors and virsh doesn't see the hypervisor anymore and I am unable to start libvirtd again. While I have everything running now, what can I do to ensure libvirtd will start on reboot? Initially to start it I have to run sudo ./libvirtd -d from the /usr/sbin location. That doesn't work on reboot though for some reason. I noticed some people have libvirtd in their init.d folder but mine doesn't get put there with the installation I am doing.