Proxmox VM is locked (backup) Rumi, August 7, 2017 Problem found- Error show: Code: INFO: setting parameters failed – VM is locked (backup) ERROR: Backup of VM 516 failed – command ‘qm set 516 –lock backup’ failed with exit code 255 Resolution: qm unlock <vmid> Continue Reading
Compacting VirtualBox’s VDI file size? Rumi, February 8, 2017 Run defrag in the guest (Windows only) Nullify free space: With a Linux Guest run this: sudo dd if=/dev/zero | pv | sudo dd of=/bigemptyfile bs=4096k sudo rm -rf /bigemptyfile Continue Reading
User Management in Proxmox Rumi, June 16, 2016 Proxmox VE authentication server This is a unix like password store (/etc/pve/priv/shadow.cfg). Password are encrypted using the SHA-256 hash method. Users are allowed to change passwords. Terms and Definitions Users A Proxmox VE user name consists of 2 parts: <userid>@<realm>. The login screen on the GUI shows them a separate… Continue Reading
Understanding Virtualbox network interfaces Rumi, March 17, 2016 To create and experiment with all kinds of networks without the risk (or taking the trouble) of creating an actual one. And here is where VirtualBox excels by providing several options for networking out of the box. VirtualBox installs an additional NIC (Network Interface Card) on your host computer to… Continue Reading
Proxmox 4 Installation Issue on LSI Raid Systems Rumi, March 4, 2016 I was installing Proxmox 4.X on my new server systems having SAS disk with LSI MPT2 Raid controller. The installation went just perfect, however, after post installation boot- I was getting errors as below similar screenshot- After googling a lot, found the solution. Here goes it- Continue Reading
Virtualbox Disk Reduce or Disk Compact Rumi, February 9, 2016February 9, 2016 You have to do the following steps: 1. Run defrag in the guest (Windows only) Nullify free space: With a Linux Guest run this: sudo dd if=/dev/zero of=/bigemptyfile bs=4096k sudo rm -rf /bigemptyfile Or: telinit 1 mount -o remount,ro /dev/sda1 zerofree -v /dev/sda1 Or sudo apt-get install secure-delete sfill -f -z… Continue Reading
Cloning Openvz Proxmox PVE container guest machine Rumi, November 4, 2015December 13, 2016 I first created a ‘template’ vm containing all stuff I need and using a temporarily ip adres. 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… Stop this ‘template’ vm as it is just used… Continue Reading
Allow NFS attachment on Proxmox OpenVZ containers Rumi, November 4, 2015 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… Continue Reading
Proxmox VM path Rumi, May 7, 2015 Backups /var/lib/vz/dump ISOs /var/lib/vz/template/iso Images /var/lib/vz/images Templates /var/lib/vz/template/cache Continue Reading
Appliances and OS Templates Rumi, June 6, 2014 For PVE & OpenVZ templates- http://openvz.org/Download/template/precreated PVE appliances- http://pve.proxmox.com/wiki/Get_Virtual_Appliances http://pve.proxmox.com/wiki/Category:Virtual_Appliances Continue Reading