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Converting Third-Party Virtual Machines and Disks

In Parallels Server Bare Metal, you can convert third-party virtual machines and their disks to Parallels virtual machines and disks. Currently, you can convert the following third-party virtual machines and disks:

  • Microsoft Hyper-V
  • Microsoft Virtual PC
  • Virtual Box
  • VMware

Converting Virtual Machines

Let us assume that you want to convert a VMware virtual machine that runs the CentOS 5 operating system and has the name centos5 . As the pctl convert command can work only with virtual machines and disks that are available locally, you first need to copy the virtual machine to the Parallels server. Once the virtual machine is on your local server, you can start the conversion. Assuming that you have copied the virtual machine to the /var/parallels directory on the Parallels server and the full path to its configuration file is /var/parallels/centos5/config.xml , you can run the following command to perform the conversion:

# pctl convert /var/parallels/centos5/config.xml

Once the conversion is complete, you can start the virtual machine and manage it in the same way you would manage a native Parallels virtual machine.

Converting Disks

You can also convert third-party virtual disks to Parallels virtual machines and disks using the prl_convert utility. Once you run the utility, it checks the disk and, depending on its type, does one of the following:

  • If the disk is a system diskā€”that is, has an operating system installed, prl_convert converts it to a Parallels virtual machine. If the utility cannot create a virtual machine for the disk (for example, it fails to detect the operating system on the disk), the disk is converted to a Parallels virtual disk. You can also specify the --allow-no-os option to force the conversion, but in this case you may have problems with starting and using the resulting virtual machine.
  • If the disk is a data disk, prl_convert converts it to a Parallels virtual disk.

When converting third-party virtual disks, you need to specify the full path to the original disk file. For example, to convert the system disk of the centos5 virtual machine (that is, the disk where the CentOS 5 operating system is installed) that has the full path of /var/parallels/centos5/centos5.vhd , you can use this command:

# prl_convert /var/parallels/centos5/centos5.vhd

This command creates a ready-to-use Parallels virtual machine with the name centos5 . You can start this virtual machine and manage it in the same way you would manage a native Parallels virtual machine. At the same time, if you convert a third-party virtual data disk, you will need first to add the resulting disk to an existing Parallels virtual machine using the pctl set command.

Notes:

1. When adding a converted virtual disk to an existing Parallels virtual machine or creating a new virtual machine on its basis, make sure that the interface type of the disk is the same as it was in the source virtual machine.

For example, if the original disk had the SCSI interface type, ensure that the interface type of the converted disk is also set to SCSI. If you do not configure the disk interface type, it will be set to SATA (this is the default interface type in Parallels virtual machines), which may cause your virtual machine to malfunction.

2. In the current version of Parallels Server Bare Metal, Hyper-V virtual machines can be converted using the prl_convert utility only. That means that you first need to convert all Hyper-V virtual disks and then add them to an existing virtual machine.