Installation guide

19.1. Preparing to Install .................................................................182
20. Installing Packages ...........................................................................183
21. Installation Complete .........................................................................183
18. Removing Red Hat Enterprise Linux ...........................................................185
19. Sample Parameter Files ............................................................................186
20. Additional Boot Options .............................................................................189
21. Troubleshooting Installation on an IBM System z System ............................191
1. You are Unable to Boot Red Hat Enterprise Linux .................................191
1.1. Is Your System Displaying Signal 11 Errors? ..............................191
2. Trouble During the Installation .............................................................191
2.1. No devices found to install Red Hat Enterprise Linux Error Message
.......................................................................................................191
2.2. Trouble with Partition Tables .....................................................191
2.3. Other Partitioning Problems ......................................................192
2.4. Are You Seeing Python Errors? .................................................192
3. Problems After Installation ...................................................................193
3.1. Remote Graphical Desktops and XDMCP ..................................193
3.2. Problems When You Try to Log In .............................................193
3.3. Your Printer Does Not Work ......................................................194
3.4. Apache-based httpd service/Sendmail Hangs During Startup ......194
22. Additional Information for IBM System z Users ............................................195
1. The sysfs File System .........................................................................195
2. Using the zFCP Driver .........................................................................196
3. Using mdadm to Configure RAID-Based and Multipath Storage .............199
3.1. Creating a RAID Device With mdadm ........................................199
3.2. Creating a Multipath Device With mdadm ...................................200
4. Configuring IPL from a SCSI Device .....................................................201
4.1. IPL the SCSI Disk ....................................................................201
5. Adding DASD .....................................................................................202
6. Adding a Network Device ....................................................................206
6.1. Adding a qeth Device ...............................................................206
6.2. Quick Reference for Adding Network Devices ............................210
7. Kernel-Related Information ..................................................................214
IV. Common Tasks .................................................................................................215
23. Upgrading Your Current System .................................................................216
1. Determining Whether to Upgrade or Re-Install ......................................216
2. Upgrading Your System ......................................................................217
24. Activate Your Subscription .........................................................................219
1. RHN Registration ................................................................................219
1.1. Provide a Red Hat Login ...........................................................219
1.2. Provide Your Installation Number ..............................................219
1.3. Connect Your System ...............................................................220
25. An Introduction to Disk Partitions ................................................................221
1. Hard Disk Basic Concepts ...................................................................221
1.1. It is Not What You Write, it is How You Write It ...........................221
1.2. Partitions: Turning One Drive Into Many .....................................223
1.3. Partitions within Partitions — An Overview of Extended Partitions 226
1.4. Making Room For Red Hat Enterprise Linux ..............................226
1.5. Partition Naming Scheme .........................................................231
1.6. Disk Partitions and Other Operating Systems .............................232
Red Hat Enterprise Linux 5.0.0
ix