Installation guide

Warning

Using vi rt-rescue on running virtual machines can cause disk corruption in the

virtual machine. vi rt-rescue attempts to prevent its own use on running virtual

machines, but cannot catch all cases. Using the command with the --ro (read-only)

option will not cause disk corruption, but may give strange or inconsistent results.

Avoid using vi rt-rescue on a running virtual machine.

vi rt-resi ze

A command line tool to resize virtual machine disks, and resize or delete any partitions on a

virtual machine disk. It works by copying the guest image and leaving the original disk

image untouched. This tool is installed as part of the libguestfs-tools package.

Important

Using vi rt-resi ze on running virtual machines can give inconsistent results. It is

best to shut down virtual machines before attempting to resize them.

vi rt-sysprep

A command line tool to reset, customize, or unconfigure virtual machines to prepare a

template for creating clones. This tool is installed as part of the libguestfs-tools package.

Important

Virtual machines must be shut down before running vi rt-sysprep. To preserve a

virtual machine's existing contents, snapshot, copy or clone the disk before running

vi rt-sysprep.

vi rt-tar

A command line archive tool for downloading and uploading parts of a virtual machine's

file system. This tool is commonly used for making backups, uploading data, reviewing

guest activity, and fixing or customizing guests. This tool is installed as part of the

libguestfs-tools package.

Warning

Using vi rt-tar with the -u (upload) option on running virtual machines can cause

disk corruption in the virtual machine. vi rt-tar attempts to prevent its own use on

running virtual machines, but cannot catch all cases.

Using vi rt-tar with the -x (extract) option on running virtual machines will not

cause disk corruption, but may give strange or inconsistent results. It is best to shut

down virtual machines before attempting to extract files from them.

Red Hat Ent erprise Linux 6 Virt ualizat io n G et t ing St art ed G uide