Red Hat ENTERPRISE LINUX 5 - VIRTUALIZATION GUIDE Guida di Installazione Pagina 34
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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 li/jointfilesconvert/448668/bguestfs-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 li/jointfilesconvert/448668/bguestfs-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
li/jointfilesconvert/448668/bguestfs-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
30
- Red Hat Enterprise Linux 6 1
- Table of Contents 5
- 1. Document Convent ions 6
- 1.2. Pull-quot e Convent ions 7
- 2.2. We Need Feedback! 9
- Chapter 1. Introduction 10
- Chapt er 1 . Int roduct io n 11
- 2.2. Migrat ion 13
- 3.1. Virt ualizat ion cost s 16
- 3.3. Performance 16
- 3.4. Disast er recovery 17
- 3.5. Securit y 17
- Important 20
- 4.4. Guest CPU models 27
- 4.5. St orage 28
- 4 .5.4 . Host st orage 29
- 5.1. vi rsh 31
- 5.2. vi rt-manag er 31
- 5.3. vi rt-i nstal l 31
- 5.4. g uestfi sh 32
- 5.5. Ot her useful t ools 32
- Revision History 36
- Revision Hist ory 37
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