Hi, I had some issues wit a VM not starting after an apt-get upgrade.... :(
Since creating the VM, it was working fine, until the upgrade. I had even exported a KVM from another machine and imported it via the dumped xml with a bit for bit copy of the LV that was used on the old machine -- no changes to that VM and it still worked fine after the apt-get upgrade. So, the original VM that stopped working. Turns out that the cdrom definition was the problem; but it wasn't a problem until the apt-get upgrade was done. Here is a diff of before and after xml data: # diff -r /tmp/libvirt/qemu/www-affinityvision-com-au.xml /etc/libvirt/qemu/www-affinityvision-com-au.xml 15c15 < <type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type> --- > <type arch='x86_64' machine='pc-i440fx-2.6'>hvm</type> 69,74d68 < </disk> < <disk type='block' device='cdrom'> < <driver name='qemu' type='raw'/> < <target dev='hda' bus='ide'/> < <readonly/> < <address type='drive' controller='0' bus='0' target='0' unit='0'/> NB: the "machine" value was derived by virsh ... from a generic value of "pc". I have no idea why removing the cdrom entry worked, but it did, so that solved the immediate problem of not being able to start the VM. Now, if I wanted to keep the cdrom entry, what should it look like? This was the error I was getting before removing the cdrom device: # virsh start www-affinityvision-com-au error: Failed to start domain www-affinityvision-com-au error: internal error: process exited while connecting to monitor: 2016-10-11T19:36:41.301939Z qemu-system-x86_64: -drive if=none,id=drive-ide0-0-0,readonly=on,format=raw: Can't use 'raw' as a block driver for the protocol level And here's an extract from /var/log/libvirt/libvirtd.log 2016-10-11 19:10:55.312+0000: 4259: error : qemuMonitorIO:662 : internal error: End of file from monitor 2016-10-11 19:11:08.858+0000: 4259: error : qemuMonitorIO:662 : internal error: End of file from monitor 2016-10-11 19:15:25.476+0000: 4426: info : libvirt version: 1.2.9, package: 9+devuan1.2 (pbuilder 2016-02-02-18:14:31 devuanbuild01.hosts.corpex.de) 2016-10-11 19:15:25.476+0000: 4426: error : virNodeSuspendSupportsTarget:332 : internal error: Cannot probe for supported suspend types 2016-10-11 19:15:25.476+0000: 4426: warning : virQEMUCapsInit:991 : Failed to get host power management capabilities 2016-10-11 19:15:25.903+0000: 4426: error : virNodeSuspendSupportsTarget:332 : internal error: Cannot probe for supported suspend types 2016-10-11 19:15:25.903+0000: 4426: warning : virLXCDriverCapsInit:86 : Failed to get host power management capabilities 2016-10-11 19:15:25.904+0000: 4426: error : virNodeSuspendSupportsTarget:332 : internal error: Cannot probe for supported suspend types 2016-10-11 19:15:25.904+0000: 4426: warning : umlCapsInit:74 : Failed to get host power management capabilities 2016-10-11 19:15:26.244+0000: 4426: error : qemuMonitorOpenUnix:309 : failed to connect to monitor socket: No such process 2016-10-11 19:15:26.244+0000: 4426: error : qemuProcessWaitForMonitor:2042 : internal error: process exited while connecting to monitor: 2016-10-11T19:15:26.061657Z qemu-system-x86_64: -drive if=none, id=drive-ide0-0-0,readonly=on,format=raw: Can't use 'raw' as a block driver for the protocol level 2016-10-11 19:15:26.244+0000: 4426: error : qemuAutostartDomain:296 : Failed to autostart VM 'www-affinityvision-com-au': internal error: process exited while connecting to monitor: 2016-10-11T19:15:2 6.061657Z qemu-system-x86_64: -drive if=none,id=drive-ide0-0-0,readonly=on,format=raw: Can't use 'raw' as a block driver for the protocol level And this from /var/log/libvirt/qemu/www-affinityvision-com-au.log: 2016-10-11 19:15:26.037+0000: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin HOME=/ QEMU_AUDIO_DRV=none /usr/bin/kvm -name www-affinityvision-com-au -S -machine pc-i440fx-2.5,accel=kvm,usb=off -cpu Broa dwell,+invtsc,+abm,+pdpe1gb,+rdrand,+f16c,+osxsave,+pdcm,+xtpr,+tm2,+est,+vmx,+ds_cpl,+monitor,+dtes64,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme -m 2048 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1 -u uid 7ab48d9e-e229-4d72-adc3-7fbe296d5859 -nographic -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/www-affinityvision-com-au.monitor,server,nowait -mon chardev=c harmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boot strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x3.0x7 -devi ce ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x3 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x3.0x1 -device ich9-usb-uhci3,masterbus=usb.0,first port=4,bus=pci.0,addr=0x3.0x2 -drive file=/srv/kvm/images/www-affinityvision-com-au--disk0,if=none,id=drive-virtio-disk0,format=raw -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virti o-disk0,id=virtio-disk0,bootindex=1 -drive file=/srv/kvm/images/www-affinityvision-com-au--disk1,if=none,id=drive-virtio-disk1,format=raw -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive -virtio-disk1,id=virtio-disk1 -drive if=none,id=drive-ide0-0-0,readonly=on,format=raw -device ide-cd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -netdev tap,fd=23,id=hostnet0,vhost=on,vhostfd=24 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:9a:ba:8a,bus=pci.0,addr=0x2 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 -dev ice virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -msg timestamp=on char device redirected to /dev/pts/0 (label charserial0) 2016-10-11T19:15:26.061657Z qemu-system-x86_64: -drive if=none,id=drive-ide0-0-0,readonly=on,format=raw: Can't use 'raw' as a block driver for the protocol level 2016-10-11 19:15:26.244+0000: shutting down dpkgs-query -l --- diff [relevant parts] details: 572,575c572,575 < ii qemu-kvm 1:2.5+dfsg-4~bpo8+1 amd64 QEMU Full virtualization on x86 hardware < ii qemu-system-common 1:2.5+dfsg-4~bpo8+1 amd64 QEMU full system emulation binaries (common files) < ii qemu-system-x86 1:2.5+dfsg-4~bpo8+1 amd64 QEMU full system emulation binaries (x86) < ii qemu-utils 1:2.5+dfsg-4~bpo8+1 amd64 QEMU utilities --- > ii qemu-kvm 1:2.6+dfsg-3.1~bpo8+1 amd64 QEMU Full virtualization on x86 hardware > ii qemu-system-common 1:2.6+dfsg-3.1~bpo8+1 amd64 QEMU full system emulation binaries (common files) > ii qemu-system-x86 1:2.6+dfsg-3.1~bpo8+1 amd64 QEMU full system emulation binaries (x86) > ii qemu-utils 1:2.6+dfsg-3.1~bpo8+1 amd64 QEMU utilities Hope this helps somebody. Kind Regards AndrewM
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