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Creating a Linux image

Deployment Solution

Deployment Solution lets you create disk images and backup images of Linux client computers. A disk image is an image that contains the application and settings that are present on a computer disk. Backup images retain the data and software of a specific computer. A backup image contains a snapshot of the hard disk of a computer. The difference between a disk image and a backup image is that a disk image can be used to deploy on multiple client computers whereas the backup image must be restored only to the computer that it was captured from. The image has the same name as the computer from which it was captured. You execute the Create Image task of Deployment Solution to create disk images and backup images.

To create an image, if the Package Server is in a domain different from the SMP domain, then ensure that you add the SMP users to the Administrator group of the Package Server. All the users that you add must have read and write permissions on the Package Server.

To create an image

  1. Launch the Symantec Management Console.

  2. In the Symantec Management Console, from the Manage menu select Jobs and tasks.

  3. In the left pane, do either of the following:

    • Right-click System Jobs and Tasks and select New > Task.

    • Expand the System Jobs and Tasks and right-click Deployment and Migration to select New > Task.

  4. In the Create New Task dialog box, select Deployment and Migration > Create Image option.

  5. The fields and their descriptions are as follows:

    Task name icon

    Displays the default task name as Create Image. You can edit the default task name to specify a relevant task name. For example, Create Image_Linux.

    Image name

    Enter a name for the image to be created.

    Image name supports only ASCII characters. If you use a token for image name, ensure that it is a valid predefined token. In case you use an invalid token, then either an error is displayed on the task or the image package is created with the task name.

    See About predefined tokens in Deployment Solution

    Description

    Enter a description, if required.

    Imaging tool

    You can create disk image and backup image of Linux client computers using the Ghost imaging tool. By default, the Ghost imaging tool creates disk images with the default option Balanced for size and speed mode.

    Image type

    Select from the following two types of computer images:

    • Disk Image

      A disk image can be deployed to multiple computers. These images are saved in a package on the package server and are replicated to other package servers. Ensure that the Prepare for Image capture task is executed before the image is created.

    • Backup image

      A backup image is used to back up a single computer. These images must be deployed only to the same computer where they were created from. They must not be deployed to multiple computers. These images are not saved in a package and cannot be distributed to other package servers through the replication process. In case you want to image only a data disk that is a disk without an operating system or partition of a data disk, select the backup image option.

  6. On the Create Image page, you can set the Advanced imaging options. Following are the options that you can set with the description:

    Media

    When you use Ghost imaging tool to create image over network such as HTTP or mapped path of Package Server or SMP, the maximum span size is 1.99 GB that refers to the zero split value. Otherwise, the split value that you entered is considered as the maximum file size. If the split value is less than 2 GB, the spans of the requested size are created. For IIS Web servers, by default, spans of 2 GB are created. For the servers that are not IIS Web servers, by default the split size is unlimited. If you specify the split size as 0 or -, then no spans are created. Only a single image is created on the Web server.

    In case you are aware of any upload file size limit, you must specify that as maximum file size.

    Command-line

    Lets you add command-line options for the imaging tool.

    See About command-line switches

    HTTP

    Lets you upload and download images through HTTP Web server.

    You need to set up the Internet Information Services (IIS) Manager to get HTTP imaging to work. Otherwise, if you try to use HTTP with the Create Image task, the job fails and returns a message that the file cannot be created.

    For the Ghost imaging tool, you must add MIME type to the IIS Manager.

    To add the MIME types, navigate to the Internet Information Services (IIS) Manager and add the MIME Types for the folder where images are stored. For the MIME types, enter the File name extention and the MIME Type.

    For the Ghost tool, you must add the following MIME types:

    • File name extension: .gho and MIME Type: application/octet-stream

    • File name extension: .ghs and MIME Type: application/octet-stream

    Ghost tool supports the HTTP Web server that is configured on Windows 2008 IIS 7.5 and on Windows 2003 server IIS 6.0.

  7. Click OK.

    If you are reading this procedure as a part of a process, return to the process by clicking on the following link:

    See Creating and deploying Linux disk images