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Table Of Contents
Customizing Guest Operating
Systems 12
When you clone a virtual machine or deploy a virtual machine from a template, you can customize the guest
operating system of the virtual machine to change properties such as the computer name, network settings,
and license settings.
Customizing guest operating systems can help prevent conflicts that can result if virtual machines with
identical settings are deployed, such as conflicts due to duplicate computer names.
You can specify the customization settings by choosing to launch the Guest Customization wizard during
the cloning or deployment process. Alternatively, you can create customization specifications, which are
customization settings stored in the vCenter Server database. During the cloning or deployment process,
you can select a customization specification to apply to the new virtual machine.
Use the Customization Specification Manager to manage customization specifications you create with the
Guest Customization wizard.
This chapter includes the following topics:
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“Guest Operating System Customization Requirements,” on page 109
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“Configure a Script to Generate Computer Names and IP Addresses During Guest Operating System
Customization in the vSphere Client,” on page 110
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“Customize Windows During Cloning or Deployment in the vSphere Client,” on page 111
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“Customize Linux During Cloning or Deployment in the vSphere Client,” on page 113
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“Managing Customization Specifications in the vSphere Client,” on page 115
Guest Operating System Customization Requirements
To customize the guest operating system, you must configure the virtual machine and guest to meet
VMware Tools and virtual disk requirements. Other requirements apply, depending on the guest operating
system type.
VMware Tools Requirements
The current version of VMware Tools must be installed on the virtual machine or template to customize the
guest operating system during cloning or deployment.
Virtual Disk Requirements
The guest operating system being customized must be installed on a disk attached as SCSI node 0:0 in the
virtual machine configuration.
VMware, Inc.
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