Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Manuale di Installazione Scaricare il pdf (Pagina 129)

Chapter 7. Installing RHEL 6 on the cloner 109

7.1.2 Adding RH6CLONE to AUTOLOG1 PROFILE EXEC

The new Linux ID you defined needs access to the VSWITCH. A SET VSWITCH command

with the GRANT parameter can be added to AUTOLOG1 PROFILE EXEC to accomplish this task.

Also, an XAUTOLOG statement can be added if the user ID is automatically logged on at z/VM

IPL time.

Other examples show how to log off of MAINT and log on to AUTOLOG1. You can also

modify the file by linking to the AUTOLOG1 191 disk read/write.

Perform the following steps:

1. Use the LINK and ACCESS commands to link to and access the AUTOLOG1 191 disk in

read/write mode:

==> link autolog1 191 1191 mr

==> acc 1191 f

2. Edit the PROFILE EXEC file. Add the RH6CLONE user ID to the sections that grant access

to the VSWITCH and that use XAUTOLOG on the Linux user IDs:

==> x profile exec f // add two lines

/***************************/

/* Autolog1 Profile Exec */

/***************************/

'cp xautolog tcpip' /* start up TCPIP */

'CP XAUTOLOG DTCVSW1' /* start VSWITCH controller 1 */

'CP XAUTOLOG DTCVSW2' /* start VSWITCH controller 2 */

'cp set pf12 ret' /* set the retrieve key */

'cp set mdc stor 0m 128m' /* Limit minidisk cache in CSTOR */

'cp set mdc xstore 0m 0m' /* Disable minidisk cache in XSTOR */

'cp set srm storbuf 300% 250% 200%' /* Overcommit memory */

'cp set signal shutdown 300' /* Allow guests 5 min to shut down */

/* Grant access to VSWITCH for each Linux user */

'cp set vswitch vsw1 grant rh6clone'

/* XAUTOLOG each Linux user that should be started */

'cp xautolog rh6clone'

'cp logoff' /* logoff when done */

====> file

These changes will not take effect until the next IPL, so you must grant this user ID access to

the VSWITCH for this z/VM session. This is done by running the following command:

==> set vswitch vsw1 grant rh6clone

Command complete

7.1.3 Preparing RH6CLONE bootstrap files

To perform an IPL on a RHEL 6 installation system, four bootstrap files must be prepared.

Three are punched to the z/VM reader and then an IPL is performed. These three files are a

kernel, a parameter file, and an initial RAM disk. The fourth file is a configuration file stored on

a CMS disk to which the parameter file points.

Think of these files as the files that are on as a PC Linux boot CD (or floppy disk). Also, a

small REXX EXEC is commonly used to clean out the reader, punch the three files, and

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Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Manuale di Installazione Pagina 129

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