Category Archives: OpenVZ

Cloning Openvz Proxmox PVE container guest machine

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  1. I first created a ‘template’ vm containing all stuff I need and using a temporarily ip adres.
  2. In the network config file of eth0 (/etc/sysconfig/network-scripts/ifcfg-eth0) I comment out the HWADDRESS line, else it will not come up with another mac address…
  3. Stop this ‘template’ vm as it is just used for cloning.
  4. Create a backup : vzdump –dumpdir /path/to/backupdir –snapshot 101
  5. Restore in new container : vzrestore /path/to/backupdir/backupfile_of_container_101 102 or vzrestore –storage ‘storagename’ /path/to/backupdir/backupfile_of_container_101 102
  6. Create a new mac for eth0 : vzctl set 102 –netif_add eth0
  7. Modify the hostname in the proxmox webinterface.
  8. Bootup the vm and open a vnc console.
  9. Change the ip address in /etc/sysconfig/network-scripts/ifcfg-eth0
  10. Go to /etc/ssh and remove all keys : rm -f /etc/ssh/*key*
  11. Restart the ssh server so it will regenerate keys : service sshd restart
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Allow NFS attachment on Proxmox OpenVZ containers

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Prepare the container

To allow a container to use NFS filesystem, you will need to start it with “nfs” feature enabled. If the container is running while you set the –features nfs:on, you will need to reboot it.

# vzctl set 101 --features "nfs:on" --save
# vzctl start 101

After this you may see nfs in /proc/filesystems

# vzctl exec 101 cat /proc/filesystems
 ext3
 ext2
nodev rpc_pipefs
nodev proc
nodev nfs
nodev sysfs
nodev tmpfs
nodev devpts
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Fix Date Time on PVE OpenVZ Guest machine

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  1. Stop VE vzctl stop 101
  2. in HD node, run:
  3. vzctl set 101 –capability sys_time:on –save
  4. Start VE: vzctl start 101
  5. Enter VE: vzctl enter 101
  6. mv /etc/localtime /etc/localtime.old
  7. ln -s /usr/share/zoneinfo/Asia/Dhaka /etc/localtime
  8. date 092115442006 (09 = Month, 21 = day, 15 = hour, 44=minutes, 2006 = year)

Run date to check your time is right. That’s it!

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