EFS Systems on a Linux Base: Getting Started

Chapter 5. S/390 operating system installation 53

install.) The base volsers were: DMTRES, DMTCAT, DMTOS1, DMTOS2, and DMTOS3. We

installed these as follows:

򐂰 Insert first CD in the CD-ROM drive and wait for Linux to open a window displaying the

contents of the CD. You could also use an ls command to display the contents:

$ls /mnt/cdrom (To display the contents of the CD)

dmtres.tar flexes.rsc flexes.sys ipl300 README.TXT

sg24-6834-00 startFlex startRes

򐂰 After inspecting the contents, we wanted two FLEX-ES definition files from the CD for later

use. We copied them into the rundir directory:

$ cp /mnt/cdrom/flexes.rsc /usr/flexes/rundir/DDrsc

$ cp /mnt/cdrom/flexes.sys /usr/flexes/rundir/DDsys

򐂰 Untar the emulated volume into our /s390 directory:

$ cd /s390

$ tar -zxvf /mnt/cdrom/dmtres.tar

(Close the CD-ROM automount window, if it is open)

$ umount /dev/cdrom

(Remove the CD)

򐂰 Install the next CD and untar the contents, following the same pattern.

We then customized the FLEX-ES definitions that were on the first CD and created a shell

script to help start this system. Our FLEX-ES definitions and the shell script are listed in

“Definitions for the Dallas DEMOpkg” on page 92. The original definitions (from the CD) were

in files DDrsc and DDsys; we merged these into a single file, DDdef. We determined the

addresses (S/390 device numbers) to use by studying the sample definitions and the

documentation provided with the CDs.

We compiled our definitions, started the FLEX-ES resource manager, started S/390

emulation (with the shell script), and IPLed our system:

$ cd /usr/flexes/rundir

$ cfcomp DDdef (Our FLEX-ES definitions)

# su (Must be root to start resource manager)

(password)

# resadm -s DDR.rescf (Start resource manager)

(pause) (Wait about 5 seconds)

# resadm -r (To confirm that it started OK)

# exit (Leave root)

$ sh shDD (Start the shell script)

flexes> ipl 0300 0301DP.1 (IPL the Dallas DEMOpkg system)

flexes>

We then logged onto TSO as SYSPRG1 (with the initial password the same as the userid).

The functions described here (cfcomp, resadm, shell scripts, the

flexes> prompt) are described

in the next chapter. They are presented here for completeness. (Please note that our choice

of DDR as a resource file name is not related to the DDR program often used with z/VM.)

5.4 OMA/2 distributions

The most likely use of an OMA/2 distribution is for z/VM. The following material describes the

initial steps for this process.

We started with two CDs in a package labeled Product Package 3390 DDR for z/VM Version

4 Release 3.0. Examination of the first CD disclosed two directories: tapes and 9999. The