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Red Hat LINUX 7.1 - ISERIES Manual

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Red Hat Linux 7.1
The Official Red Hat Linux iSeries Installation
Guide

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  • Page 1 Red Hat Linux 7.1 The Official Red Hat Linux iSeries Installation Guide...
  • Page 2 ISBN: N/A Red Hat, Inc. 2600 Meridian Parkway Durham, NC 27713 USA +1 919 547 0012 (Voice) +1 919 547 0024 (FAX) 888 733 4281 (Voice) P.O. Box 13588 Research Triangle Park, NC 27709 USA © 2001 Red Hat, Inc. rhl-ig-iseries(EN)-7.1-Print-RHI (2001-03-14T12:41-0500) Copyright ©...

  • Page 3: Table Of Contents

    Contents Red Hat Linux 7.1 Chapter 1 Introduction ............. 5 Documentation Conventions ........... . 5 How to Use This Manual.
  • Page 4 3.18 Authentication Configuration ........... . 46 3.19 Package Group Selection............48 3.20 Preparing to Install ..

  • Page 5: Chapter 1 Introduction

    Section 1.1:Documentation Conventions 1 Introduction Welcome to the Official Red Hat Linux iSeries Installation Guide. The Official Red Hat Linux iSeries Installation Guide contains useful information to assist you during the installation of Red Hat Linux. From fundamental concepts such as installation preparation (gath- ering information about your current system) to the step-by-step installation procedure, this book will be a valuable resource as you install Red Hat Linux.
  • Page 6 Chapter 1:Introduction Filenames, directory names, paths, and RPM package names are represented this way. This style should indicate that a particular file or directory exists by that name on your Red Hat Linux system. Examples: The .bashrc file in your home directory contains bash shell definitions and aliases for your own use.

  • Page 7: How To Use This Manual

    Chapter 3, Installing Red Hat Linux to begin the installation process. Refer to the for answers to questions Red Hat Frequently Asked Questions and problems that may occur before, during, or after the installation. You will find the FAQ online at: http://www.redhat.com/support/docs/faqs/rhl_general_faq/FAQ.html...
  • Page 8 Chapter 1:Introduction...

  • Page 9: Chapter 2 Steps To Get You Started

    If your particular boxed set did not include all of the printed Red Hat Linux manuals, you can find them online or on the Red Hat Linux Documentation CD. To find the manuals in both HTML and PDF formats online, visit http://www.redhat.com/sup- port/manuals.

  • Page 10: Do You Have Enough Disk Space

    Chapter 2:Steps to Get You Started 2.4 Do You Have Enough Disk Space? Nearly every modern-day operating system (OS) uses disk partitions, and Red Hat Linux is no ex- ception. When you install Red Hat Linux, you may have to work with disk partitions. If you have not worked with disk partitions before (or need a quick review of the basic concepts) read An Introduction to Disk Partitions in the appendix of the Official Red Hat Linux Reference Guide before proceeding.

  • Page 11: Which Installation Class Is Best For You

    Section 2.5:Which Installation Class is Best For You? If you are not sure that you meet these conditions, or if you want to know how to create free disk space for your Red Hat Linux installation, please refer to the partitioning appendix in the Official Red Hat Linux Reference Guide.
  • Page 12 Chapter 2:Steps to Get You Started 2.5.1 Workstation-Class Installations Most suitable for new users, the workstation-class installation will install your choice of the GNOME or KDE desktop environments, or both, and the X Window System. WARNING A workstation-class installation will erase all information in all Linux- related hardfile (disk) partitions assigned to that Linux Logical partition.
  • Page 13 Section 2.5:Which Installation Class is Best For You? What a Workstation-Class Installation Will Do If you choose automatic partitioning, a workstation-class installation removes all Linux-related par- titions on all installed hard drives (and uses all free unpartitioned disk space) to create the following partitions: •...
  • Page 14 Chapter 2:Steps to Get You Started If you choose automatic partitioning, the installation program deletes all data in all existing partitions of any kind and decides how to partition the disk for the new version. If you choose automatic partitioning, a server-class installation removes ALL existing partitions on ALL installed hard drives, so choose this installation class only if you are sure you have nothing you want saved! When the installation is complete, you will find the following partitions: •...
  • Page 15 Section 2.5:Which Installation Class is Best For You? not perform a custom-class installation without reading through this manual and clarifying any ques- tions you may have. • Selecting and Installing Packages — This step is performed after your partitions have been con- figured and selected for formatting.
  • Page 16 Chapter 2:Steps to Get You Started...

  • Page 17: Chapter 3 Installing Red Hat Linux

    Section 3.1:The Installation Program User Interface 3 Installing Red Hat Linux This chapter explains how to install Red Hat Linux from the CD-ROM. The following topics will be discussed: • Getting familiar with the installation program’s user interface • Booting the installation program •...
  • Page 18 Chapter 3:Installing Red Hat Linux Figure 3–2 Installation Program Widgets as seen in Disk Druid Here is a list of the most important widgets shown in Figure 3–1, Installation Program Widgets as and Figure 3–2, Installation Program Widgets as seen in Disk Druid : seen in Configure TCP/IP •...

  • Page 19: Booting The Installation Program

    Section 3.2:Booting the Installation Program • Button widget — button widgets are the primary method of interacting with the installation pro- gram. You progress through the windows of the installation program by navigating these buttons, using the keys. Buttons can be selected when they are highlighted. [Tab] [Enter] •...

  • Page 20: Using The Driver Disk

    Chapter 3:Installing Red Hat Linux drive will be the first CD-ROM drive (/dev/vcda) for the LPAR. Refer to IBM documentation for information how to determine this. You will place the driver disk into the first CD-ROM drive when instructed by the installation program. Vary off the NWS.

  • Page 21: Language Selection

    Section 3.5:Welcome to Red Hat Linux 3.4 Language Selection Using the arrow keys, select the language you would prefer to use for the installation [Up] [Down] and as the system default (see Figure 3–3, Language Selection). Selecting the appropriate language will also help target your time zone configuration later in the in- stallation.

  • Page 22: Install Options

    Chapter 3:Installing Red Hat Linux Figure 3–4 Welcome Screen Select the button and press to continue. [Enter] 3.6 Install Options Red Hat Linux allows you to choose the installation type that best fits your needs. Your options are , or Workstation Server Custom...

  • Page 23: Disk Partitioning

    Section 3.7:Disk Partitioning Figure 3–5 Choosing Install or Upgrade 3.7 Disk Partitioning Automatic partitioning allows you to perform an installation without having to partition your drive(s) yourself. If you do not feel comfortable with partitioning your system, it is recommended that do not choose to partition manually and instead let the installation program partition for you.
  • Page 24 Chapter 3:Installing Red Hat Linux Figure 3–6 Disk Partitioning WARNING A workstation- or custom-class installation using automatic partition- ing will remove all data on all Linux disk partitions within the virtual or physical disks associated with the current Linux LPAR. To preserve this data, refer to Appendix C, Re-installation of Red Hat Linux and Preserv- ing Existing Data.
  • Page 25 Section 3.7:Disk Partitioning WARNING A server-class installation using automatic partitioning will remove all data on all disk storage (virtual or physical) associated with current Linux LPAR. To preserve this data, refer to Appendix C, Re-installation of Red Hat Linux and Preserving Existing Data. Note: If the Automatic Partitioning...

  • Page 26: Partitioning Your System

    Chapter 3:Installing Red Hat Linux Figure 3–7 Disk Partitioning 3.8 Partitioning Your System If you chose , please skip ahead to Section 3.11, Network Configuration. Automatic Partitioning , please skip ahead to Section 3.9, Partitioning with fdisk . If you chose Manually partition with fdisk At this point, you must tell the installation program where to install Red Hat Linux.
  • Page 27 Section 3.8:Partitioning Your System Figure 3–8 Partitioning with Disk Druid The partitioning tool used in Red Hat Linux 7.1 is Disk Druid. With the exception of certain esoteric situations, Disk Druid can handle the partitioning requirements for a typical Red Hat Linux installa- tion.
  • Page 28 Chapter 3:Installing Red Hat Linux 3.8.2 Recommended Partitioning Scheme Unless you have a reason for doing otherwise, we recommend that you create the following partitions: • A swap partition (twice your RAM) — swap partitions are used to support virtual memory. In other words, data is written to a swap partition when there is not enough RAM to store the data your system is processing.
  • Page 29 Section 3.8:Partitioning Your System • : This field shows the hard disk’s device name. Drive • Geom [C/H/S] : This field shows the hard disk’s geometry. The geometry consists of three numbers representing the number of cylinders, heads, and sectors as reported by the hard disk. •...
  • Page 30 Chapter 3:Installing Red Hat Linux • : Highlight and enter the partition’s mount point. For example, if this partition should Mount Point be the root partition, enter /. • : Enter the size (in megabytes) of the partition. Note this field starts with a "1" in it; Size (Megs) unless changed you will end up with a 1 MB partition.

  • Page 31: Partitioning With Fdisk

    Section 3.9:Partitioning with fdisk 3.9 Partitioning with fdisk This section applies only if you chose to use fdisk to partition your system. If are not using fdisk, please skip to Section 3.7, Disk Partitioning for automatic partitioning or Section 3.8, Partitioning Your System for partitioning with Disk Druid.
  • Page 32 Chapter 3:Installing Red Hat Linux Figure 3–9 Partitioning with fdisk Once you have chosen which drive to partition, you will be presented with the fdisk command screen. If you do not know what command to use, type at the prompt for help. When you are finished making partitions, type to save your changes and quit.

  • Page 33: Formatting Partitions

    Section 3.10:Formatting Partitions CAUTION Unlike and Intel system, an iSeries Linux partition should be booted from a PReP Boot partition. The PReP Boot partition must be created and be made active with the a option. Failure to do so may leave the resulting system unbootable, even if the installation completes successfully.

  • Page 34: Network Configuration

    Chapter 3:Installing Red Hat Linux Figure 3–10 Choosing Partitions to Format Note It is never necessary to check for bad blocks on a virtual disk. If you wish to check for bad blocks while formatting each filesystem, please make sure to select the checkbox.

  • Page 35: Hostname Configuration

    Section 3.12:Hostname Configuration Choose whether you would like to configure your IP address using . If you do not have bootp/dhcp DHCP client access or you are unsure what to provide here, please contact your network administrator. In this case, an existing server on your LAN dynamically supplies network-related information needed to add this system to the network at connect-time.
  • Page 36 In this example, hostname is the name you’ve chosen for your computer and domain.name is the TCP/IP domain. (A domain name may contain more nodes: for example, eastcoast.mainserver.red- hat.com and westcoast.mainserver.redhat.com.) Even if your computer is not part of a network, you can enter a hostname for your system. Take this opportunity to enter in a name;...

  • Page 37: Firewall Configuration

    Section 3.13:Firewall Configuration 3.13 Firewall Configuration Red Hat Linux also offers you firewall protection for enhanced system security. A firewall exists between your computer and the network, and determines which resources on your computer remote users on the network can access. A properly configured firewall can greatly increase the security of your system.
  • Page 38 Chapter 3:Installing Red Hat Linux • IRC DCC file transfers • Secure Shell (SSH) • Remote X Window System clients If you are connecting your system to the Internet, but do not plan to run a server, this is the safest choice.
  • Page 39 Section 3.13:Firewall Configuration Allow Incoming Enabling these options allow the specified services to pass through the firewall. Note, during a workstation-class installation, the majority of these services are not installed on the system. DHCP If you allow incoming DHCP queries and replies, you allow any network interface that uses DHCP to determine its IP address.

  • Page 40: Mouse Configuration

    Chapter 3:Installing Red Hat Linux You can allow access to ports which are not listed here, by listing them in Other ports field. Use the following format: port:protocol. For example, if you want to allow IMAP access through your firewall, you can specify imap:tcp. You can also explicitly specify numeric ports;...

  • Page 41: Time Zone Configuration

    Section 3.16:Time Zone Configuration Figure 3–15 Language Support Selection If you are only going to use one language on your system, selecting only that language will save significant disk space. The default language is the language you selected to use during the installation. However, if you select only one language, you will only be able to use that specified language after the Red Hat Linux installation is complete.

  • Page 42: Account Configuration

    Chapter 3:Installing Red Hat Linux Figure 3–16 Configuring the Time Zone If you wish to set the hardware (CMOS) clock to GMT (Greenwich Mean Time, also known as UTC, or Universal Coordinated Time), select . Setting it to GMT means your Hardware clock set to GMT system will properly handle daylight-saving time, if your time zone uses it.
  • Page 43 Section 3.17:Account Configuration Figure 3–17 Root Password Setting up a root account and password is one of the most important steps during your installation. Your root account is similar to the administrator account used on Windows NT machines. The root account is used to install packages, upgrade RPMs and perform most system maintenance.
  • Page 44 Chapter 3:Installing Red Hat Linux You should make the root password something you can remember, but not something that is easy for someone else to guess. Your name, your phone number, qwerty, password, root, 123456, and anteater are all examples of bad passwords. Good passwords mix numerals with upper and lower case letters and do not contain dictionary words: Aard387vark or 420BMttNT, for example.
  • Page 45 Section 3.17:Account Configuration Figure 3–18 Add User Once the account has been set up, you will be presented with the screen which User Account Setup will display the account you just entered.

  • Page 46: Authentication Configuration

    Chapter 3:Installing Red Hat Linux Figure 3–19 User Account Setup Choose to create a new user account. You can also the user accounts you have created or no longer want. Edit Delete 3.18 Authentication Configuration If you are performing a workstation- or server installation, please skip ahead to Section 3.19, Package Group Selection.
  • Page 47 Section 3.18:Authentication Configuration Figure 3–20 Authentication Configuration • provides a secure method for retaining passwords. The passwords Enable shadow passwords are stored in /etc/shadow, which can only be read by root. • allows a long password to be used (up to 256 characters), instead of the Enable MD5 passwords standard eight letters or less.

  • Page 48: Package Group Selection

    Chapter 3:Installing Red Hat Linux – — allows you to look up user information by its Distinguished Name (DN). LDAP Base DN – (Transport Layer Security) — this option allows LDAP to Use TLS connections lookups send encrypted user names and passwords to an LDAP server before authentication. •...
  • Page 49 Section 3.19:Package Group Selection Figure 3–21 Package Group Selection Select each component you wish to install. Selecting (at the end of the component list) Everything during a custom-class installation installs all packages included with Red Hat Linux. If you select every package, you will need approximately 1.7 GB of free disk space.
  • Page 50 Chapter 3:Installing Red Hat Linux Figure 3–22 Selecting Individual Packages To see the list of packages in the Applications/Editors category, for example, use the arrow keys to select this group and press . When you do, the sign (closed) changes to a sign [Enter] [Space]...

  • Page 51: Preparing To Install

    Section 3.20:Preparing to Install needs in order to be fully functional, Red Hat Linux checks these package dependencies each time you install or remove software packages. If any package requires another package which you have not selected to install, the program presents a list of these unresolved dependencies and gives you the opportunity to resolve them (see Figure 3–23, Unresolved Dependencies).
  • Page 52 Chapter 3:Installing Red Hat Linux Figure 3–24 Installation to Begin WARNING If, for some reason, you would rather not continue with the installation process, this is your last opportunity to safely cancel the process and re- boot your machine. Once you press the button, partitions will be Next written and packages will be installed.

  • Page 53: Installing Packages

    Section 3.22:Installation Complete 3.21 Installing Packages At this point there is nothing left for you to do until all the packages have been installed (see Figure 3–25, Installing Packages). How quickly this happens depends on the number of packages you have selected and your computer’s speed.
  • Page 54 Chapter 3:Installing Red Hat Linux CAUTION In order to reboot properly you must save the kernel image and kernel com- mand line arguments into your IPL source. Log in to Linux and follow the appropriate instructions below. If you have installed onto virtual disks and have no SCSI disks, use these two commands: /sbin/installkernel prep /sbin/installcmdline prep...

  • Page 55: Using The Installation Disks In Rescue Mode

    Section 3.23:Using the Installation Disks in Rescue Mode Figure 3–26 Installation Complete 3.23 Using the Installation Disks in Rescue Mode You can use the installation disks in rescue mode, in case your LPAR will not boot. Rescue mode gives you access to the disk partitions on your LPAR so you can make any changes necessary to rescue your installation.

  • Page 56: Special Considerations For Accessing The Scsi Utilities From Rescue Mode

    Chapter 3:Installing Red Hat Linux 3.24 Special Considerations for Accessing the SCSI Utilities from Rescue Mode If your LPAR uses Native DASD disks, you may need access to the SCSI utilities from rescue mode. These utilities are located on the driver disc CD. The driver disc CD cannot be mounted from rescue mode unless special steps are taken.

  • Page 57: Appendix A Getting Technical Support

    Under the Brim: The Official Red Hat E-Newsletter — Every month, get the latest news and product information directly from Red Hat. To sign up, go to http://www.redhat.com/apps/activate/. You will find your Product ID on the Reg- istration Information Card in your Official Red Hat Linux boxed set.

  • Page 58: Scope Of Red Hat Support

    A large number of Linux-related websites are available. The best starting point for finding information on Red Hat Linux is the Red Hat, Inc. website: http://www.redhat.com/ Many Linux-related books are available. If you are new to Linux, a book that covers Linux basics will be invaluable.

  • Page 59: How To Get Technical Support

    To sign up for technical support, you will need to: 1. Create a customer profile at http://www.redhat.com/apps/activate/. You may have already com- pleted this step; if you have, continue to the next step. If you do not already have a customer profile on the Red Hat website, please create a new one.

  • Page 60: Questions For Technical Support

    Answer the optional customer questionnaire. Submit the form. If the previous steps were completed successfully, you can now login at http://www.redhat.com/sup- port and open a new technical service request. However, you must still use your Product ID in order to obtain technical support via telephone (if the product you purchased came with phone support).

  • Page 61: Support Frequently Asked Questions (Faq)

    A.6 Support Frequently Asked Questions (FAQ) A.6.1 Q: Email Messages to support@redhat.com Bounce I send email to support@redhat.com but my messages bounce back to me. What is the problem? A.6.2 A: support@redhat.com Is Not Used at This Time To better serve our customers, Red Hat is re-engineering our email support process. At this time, the support@redhat.com address is not functional.
  • Page 62 Appendix A:Getting Technical Support...

  • Page 63: Appendix B Troubleshooting Your Installation Of Red Hat Linux

    Section B.1:Trouble During the Installation B Troubleshooting Your Installation of Red Hat Linux This appendix discusses some common installation problems you could encounter and provides solu- tions to these problems. B.1 Trouble During the Installation B.1.1 Do You Not See the Automatic Partitioning Screen? If the screen does not appear during your installation, you probably do not Automatic Partitioning...
  • Page 64 Appendix B:Troubleshooting Your Installation of Red Hat Linux When defining a partition’s type as Linux swap, you do not have to assign it a mount point. Disk Druid automatically assigns the mount point for you. B.1.5 Are You Seeing Python Errors? During some upgrades or installations of Red Hat Linux, the installation program (also known as Anaconda) may fail with a Python or traceback error.

  • Page 65: Problems After Installation

    You can also search for bug reports related to this problem. To search Red Hat’s bug tracking system, go to http://bugzilla.redhat.com/bugzilla. Finally, if you are still facing problems related to this error, register your product and contact our support team. To register your product, go to http://www.redhat.com/apps/activate. B.2 Problems After Installation B.2.1 Unable to IPL from...
  • Page 66 Appendix B:Troubleshooting Your Installation of Red Hat Linux Edit the file using pico by typing pico ~/.mailcap at the prompt in a terminal window. (You may use any text editor.) Remove the following lines from the file: application/x-javascript;;\ x-mozilla-flags=save You can also turn off JavaScript within Netscape Navigator itself. Click on =>...

  • Page 67: Appendix C Re-Installation Of Red Hat Linux And Preserving Existing Data

    Section C.2:Additional Considerations: iSeries Virtual Disks C Re-installation of Red Hat Linux and Preserving Existing Data C.1 Preservation of Existing Data on an iSeries Red Hat Linux Logical Partition Generally speaking, installing Red Hat Linux over a prior installation (including Red Hat Linux) will destroy some and often all the data on the disks (virtual and physical) attatched to that Logical Partition (LPAR).
  • Page 68 Appendix C:Re-installation of Red Hat Linux and Preserving Existing Data Since virtual disks are not bound by physical boundaries, they can be sized in any manner that is useful and culled out during a Red Hat Linux re-installation to preserve them over the installation.
  • Page 69 Index Index buttons ........29 deleting partitions ......30 drive summaries......28 editing partitions ......30 adding partitions ......29 partitions ........26 additional resources problems adding partitions ....28 websites ....
  • Page 70 Index custom-class ....... 14 configuration ......34 disk space ........10 keyboard navigation ...... 19 partitioning ........ 26 packages program groups ........48 booting ........19 selecting......... 48 driver disks ..
  • Page 71 Index packages ........48 creation ........44 steps setting up ........44 choosing an installation class .... 11 user interface disk space ........10 installation program....... 17 support, technical text mode installation .

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Linux 7.1

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