Start failed: command /usr/bin/kvm

[Tapio Lehtonen]

Fresh installed Proxmox 5.2 from OVH Hosting provided image.

Starting the created VM fails,
VM/CT 100 Console Error: Failed to run vncproxy
VM 100 - Start Error: start failed: command '/usr/bin/kvm -id 10 -name .....

I created that VM with all defaults.

root@rautaantenni:~# pveversion -v
proxmox-ve: 5.2-2 (running kernel: 4.15.17-3-pve)
pve-manager: 5.2-3 (running version: 5.2-3/785ba980)
pve-kernel-4.15: 5.2-3
pve-kernel-4.15.17-3-pve: 4.15.17-13
corosync: 2.4.2-pve5
criu: 2.11.1-1~bpo90
glusterfs-client: 3.8.8-1
ksm-control-daemon: 1.2-2
libjs-extjs: 6.0.1-2
libpve-access-control: 5.0-8
libpve-apiclient-perl: 2.0-4
libpve-common-perl: 5.0-34
libpve-guest-common-perl: 2.0-17
libpve-http-server-perl: 2.0-9
libpve-storage-perl: 5.0-23
libqb0: 1.0.1-1
lvm2: 2.02.168-pve6
lxc-pve: 3.0.0-3
lxcfs: 3.0.0-1
novnc-pve: 1.0.0-1
proxmox-widget-toolkit: 1.0-19
pve-cluster: 5.0-27
pve-container: 2.0-23
pve-docs: 5.2-4
pve-firewall: 3.0-12
pve-firmware: 2.0-4
pve-ha-manager: 2.0-5
pve-i18n: 1.0-6
pve-libspice-server1: 0.12.8-3
pve-qemu-kvm: 2.11.1-5
pve-xtermjs: 1.0-5
qemu-server: 5.0-29
smartmontools: 6.5+svn4324-1
spiceterm: 3.0-5
vncterm: 1.5-3
zfsutils-linux: 0.7.9-pve1~bpo9

 

[wolfgang]

Hi,

with this information, you provide nobody can help you.
please send the container config.
Start the container with debug log.

lxc-start -F -n 100

 

[Tapio Lehtonen]

root@rautaantenni:/etc/pve/nodes/rautaantenni/qemu-server# cat 100.conf
bootdisk: scsi0
cores: 1
ide2: local:iso/debian-9.4.0-amd64-netinst.iso,media=cdrom
memory: 512
net0: virtio=BA:74:F3:34:08:8C,bridge=vmbr0
numa: 0
ostype: l26
scsi0: local:100/vm-100-disk-1.qcow2,size=32G
scsihw: virtio-scsi-pci
smbios1: uuid=48dbeefb-d4ad-412f-859c-f621d26f90bd
sockets: 1

root@rautaantenni:/etc/pve/nodes/rautaantenni/qemu-server# qm showcmd 100
/usr/bin/kvm -id 100 -name vm100 -chardev 'socket,id=qmp,path=/var/run/qemu-server/100.qmp,server,nowait' -mon 'chardev=qmp,mode=control' -pidfile /var/run/qemu-server/100.pid -daemonize -smbios 'type=1,uuid=48dbeefb-d4ad-412f-859c-f621d26f90bd' -smp '1,sockets=1,cores=1,maxcpus=1' -nodefaults -boot 'menu=on,strict=on,reboot-timeout=1000,splash=/usr/share/qemu-server/bootsplash.jpg' -vga std -vnc unix:/var/run/qemu-server/100.vnc,x509,password -cpu kvm64,+lahf_lm,+sep,+kvm_pv_unhalt,+kvm_pv_eoi,enforce -m 512 -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' -device 'pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e' -device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' -device 'usb-tablet,id=tablet,bus=uhci.0,port=1' -device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3' -drive 'file=/var/lib/vz/template/iso/debian-9.4.0-amd64-netinst.iso,if=none,id=drive-ide2,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=200' -device 'virtio-scsi-pci,id=scsihw0,bus=pci.0,addr=0x5' -drive 'file=/var/lib/vz/images/100/vm-100-disk-1.qcow2,if=none,id=drive-scsi0,format=qcow2,cache=none,aio=native,detect-zeroes=on' -device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,bootindex=100' -netdev 'type=tap,id=net0,ifname=tap100i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' -device 'virtio-net-pci,mac=BA:74:F3:34:08:8C,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300'
root@rautaantenni:/etc/pve/nodes/rautaantenni/qemu-server#

oot@rautaantenni:/etc/pve/nodes/rautaantenni/qemu-server# qm start 100
kvm: -drive file=/var/lib/vz/images/100/vm-100-disk-1.qcow2,if=none,id=drive-scsi0,format=qcow2,cache=none,aio=native,detect-zeroes=on: file system may not support O_DIRECT
kvm: -drive file=/var/lib/vz/images/100/vm-100-disk-1.qcow2,if=none,id=drive-scsi0,format=qcow2,cache=none,aio=native,detect-zeroes=on: Could not open '/var/lib/vz/images/100/vm-100-disk-1.qcow2': Invalid argument
start failed: command '/usr/bin/kvm -id 100 -name vm100 -chardev 'socket,id=qmp,path=/var/run/qemu-server/100.qmp,server,nowait' -mon 'chardev=qmp,mode=control' -pidfile /var/run/qemu-server/100.pid -daemonize -smbios 'type=1,uuid=48dbeefb-d4ad-412f-859c-f621d26f90bd' -smp '1,sockets=1,cores=1,maxcpus=1' -nodefaults -boot 'menu=on,strict=on,reboot-timeout=1000,splash=/usr/share/qemu-server/bootsplash.jpg' -vga std -vnc unix:/var/run/qemu-server/100.vnc,x509,password -cpu kvm64,+lahf_lm,+sep,+kvm_pv_unhalt,+kvm_pv_eoi,enforce -m 512 -device 'pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e' -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' -device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' -device 'usb-tablet,id=tablet,bus=uhci.0,port=1' -device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3' -drive 'file=/var/lib/vz/template/iso/debian-9.4.0-amd64-netinst.iso,if=none,id=drive-ide2,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=100' -device 'virtio-scsi-pci,id=scsihw0,bus=pci.0,addr=0x5' -drive 'file=/var/lib/vz/images/100/vm-100-disk-1.qcow2,if=none,id=drive-scsi0,format=qcow2,cache=none,aio=native,detect-zeroes=on' -device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,bootindex=200' -netdev 'type=tap,id=net0,ifname=tap100i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' -device 'virtio-net-pci,mac=BA:74:F3:34:08:8C,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300'' failed: exit code 1

root@rautaantenni:/etc/pve/nodes/rautaantenni/qemu-server# ls -lh /var/lib/vz/images/100/
total 2.9M
-rw-r----- 1 root root 33G Jul  2 14:33 vm-100-disk-1.qcow2

 

[wolfgang]

Your storage backend is ZFS and you try to run with O_Direct (cache Mode "No cache").
ZFS as FS does not support O_Direct
Change the cache mode or better add a "ZFS" storage and use this instead of the "local" storage.
You can add the storage in Datacenter->Storage and select the add Button.

 

[Tapio Lehtonen]

Thanks, that works. I created ZFS Storage and a new VM using that, and it boots and I could install Debian on it.
I'll have to read more about storages now that I plan to use ZFS.