Ibm RS/6000 Manuel d'utilisateur Page 92
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4.4.3 Firmware Flash Update
There are several situations where a firmware flash update may be required. For
example, after a field EC (engineering change) or to provide firmware support for a
new adapter.
The firmware flash update can be performed by the user in Normal mode or by the
system in Recovery mode. The default is the Normal mode update performed by
the user from the SMS Tools (Utilities in the ASCII version) menu. Messages and
errors are communicated through the menu pop-up interface.
The Recovery mode update is executed automatically when a bad firmware image
is detected during early system initialization (see 4.4.1, “Firmware Boot Sequence”
on page 65). In this mode, most messages and errors are suppressed; fatal errors
are displayed in a serial-interface-compatible format.
To start a firmware update, you have to perform the following steps:
1. Access SMS.
2. Select the Tools menu (Utilities in the ASCII version).
3. Select the Update icon (Update System Firmware on ASCII).
Before starting the firmware update process, the system will ask you if you
want to create a
firmware recovery
diskette. It is recommended to create the
recovery diskette, unless you have created it already. To create the recovery
diskette, insert a blank DOS-formatted diskette.
4. After the recovery diskette has been successfully created, follow the
instructions to update the firmware.
To update the firmware, the system searches the diskette drive for a flash update
file with the extension
.IMG
. If found, the file is loaded. This file is a composite
image. It does not contain the entire firmware; thus, when the firmware is updated,
only the sectors contained in the
.IMG
file are programmed.
Once loaded, the image is examined to ensure it is a valid firmware image. Flash
table/system ID structure, file length and the Cycle Redundancy Check (CRC) are
verified. If we have a valid image, the Vital Product Data (VPD) information is
duplicated in the recovery block (for recovery purposes in case the image is
corrupted) and also merged with the composite image.
Now, the update routine starts programming the firmware sectors to be updated.
Attention
A system power-off in this section of code will result in a corrupted flash ROM.
Notice that because only the composite image sectors are erased and
reprogrammed, those sectors are the only ones that could be corrupted. Since the
recovery block is protected in Normal mode and Recovery mode, the system can
still be restored by using the recovery diskette. A system power-down at the wrong
time could result in a completely corrupted flash ROM and a dead system.
68 Introduction to PCI-Based RS/6000 Servers
- April 1996 1
- First Edition (April 1996) 4
- Abstract 5
- Contents 7
- Special Notices 17
- Platform (CHRP) 19
- Related Publications 20
- Preface xix 21
- Acknowledgments 23
- Chapter 1. Introduction 25
- Chapter 1. Introduction 3 27
- Chapter 1. Introduction 5 29
- 1.3.3 PowerPC Platform Goals 31
- 1.3.4 CHRP Certification 32
- Architecture 33
- 2.1 The Hardware Design 35
- High Data Transfer Speed 37
- Processor Independence 37
- Cross-Platform Compatibility 37
- Multi-bus Support 38
- Plug and Play 38
- Investment protection 38
- 2.2.1 The Processor Subsystem 39
- 2.2.2 The L2 Cache 40
- 2.2.5 The Primary PCI Bus 41
- 2.2.4 The System Memory 41
- 2.2.6 The Secondary PCI Bus 42
- 2.2.7 The EISA Bus 42
- 2.2.8 The X-Bus 42
- 2.3 Electronics Partitioning 43
- 2.4.1 Standard Features 45
- Integrated SCSI-2 adapter 46
- Standard I/O ports 46
- 2.4.2.1 Internal Disk Drives 47
- 2.4.2.2 Internal Tape Drives 47
- 2.4.2.4 Graphics Adapter 48
- 2.4.2.5 PCI SCSI-2 Adapters 49
- PCI Ethernet Adapters 51
- 2.4.2.7 External Subsystems 54
- Internal Disk Drives 55
- Internal Tape Drives 55
- Graphics Adapter 55
- SCSI Adapters 55
- 2.5.1 Standard Features 56
- Integrated SCSI-2 Adapter 57
- 2.5.2.1 Internal Disk Drives 58
- 2.5.2.2 Internal Tape Drives 59
- 2.5.2.4 Graphics Adapter 59
- 2.5.2.5 PCI SCSI-2 Adapters 60
- 2.5.2.7 External Subsystems 61
- 2.6 Hardware Requirements 62
- 2.7 Performance Positioning 62
- SPEC base metrics 64
- SPEC rate metrics 64
- Chapter 3. Hot-Swap Subsystem 65
- 3.1.1 Backplanes 66
- 3.1.2 Hot-Swap Bays and Banks 67
- 3.2 Installation 68
- 3.2.5 Disk Carriers 70
- 3.3.4 Mirroring 74
- Managing 77
- 4.1 Boot Record 78
- 4.2.1 Firmware 80
- 4.2.2 Software ROS for AIX 80
- 4.3 Boot Image 82
- Name Description 83
- Base Proto Files: 84
- Proto Extension Files: 84
- 4.3.1.2 RAM File System 85
- Master Partition Header 86
- Reserved 1 86
- Reserved 2 86
- 4.4.1 Firmware Boot Sequence 89
- 4.4.2 Firmware Passwords 91
- 4.4.3 Firmware Flash Update 92
- 4.4.4 Firmware Recovery 93
- 4.4.5.3 Graphics Adapter POST 94
- 4.4.5.5 SCSI Subsystem POST 94
- 4.5 LCD Panel 95
- 4.6.1 SMS Graphical Main Menu 97
- 4.6.2 SMS ASCII Main Menu 97
- 4.6.3 Start-Up Menu 97
- 4.6.4 Test Menu 98
- 4.6.5 Tools Menu 98
- 5.1.1 Boot-Device Order List 99
- 5.1.3 bootlist Command 102
- 5.2 Entering Debug Mode 102
- 5.3 System Dump Support 103
- 5.3.4 Dump LCD Support 106
- 5.4 Managing System Backups 106
- 5.4.1 The bootinfo Command 107
- 5.4.6 Cloning 112
- 5.5 Configuration Information 114
- 5.6 Graphics Support 116
- 5.6.2 Resolution 118
- 5.6.3 Configuring the Adapter 118
- DISPLAY Variable Description 121
- RS/6000 Servers 123
- SG24-2581-00 124
- 6.1.2 Device Location Codes 125
- 6.2 PCI Adapter Configuration 126
- 6.3 ISA Adapter Configuration 128
- Figure 35. SMIT ISA Menu 131
- 6.4.1 DIP-Switch Setting 132
- 6.4.2 Configuring the Adapter 133
- 6.5.1 DIP-Switch Setting 136
- 6.5.2 Configuring the Adapter 136
- 6.6.2 DIP-Switch Setting 140
- 6.6.3 Configuring the Adapter 141
- Interrupt Level 142
- Bus I/O Address 142
- Bus Memory 142
- 6.7.1 DIP-Switch Setting 145
- 6.7.2 Configuring the Adapter 146
- System User's Guide 153
- Firmware Level 158
- Chapter 7. SCSI Cabling 161
- 7.1.2 SCSI Terminators 162
- 7.1.3 SCSI Device Addresses 162
- 7.1.4 SCSI Bus Width 162
- 8.2 Stand-Alone Diagnostics 172
- 8.3 Online Diagnostics 176
- 8.3.1 Concurrent Mode 176
- 8.3.2 Service Mode 177
- 8.3.3 Maintenance Mode 178
- Machine Object Name 179
- Operation to Perform 179
- Enable Diagnostics Boot 179
- 9.1 NIM Concepts 181
- 9.1.1 NIM Environment 181
- 9.1.2 NIM Objects 182
- 9.1.2.2 Network Objects 183
- 9.1.2.3 Machine Objects 183
- Network Install Route 184
- Gateway1 184
- Gateway2 184
- Network2 184
- 9.2.1 NIM Master Requirements 185
- 9.2.2 Filesystem Creation 185
- 9.2.3 NIM Master Activation 186
- Standalone1 187
- /inst.images 193
- Resource Object 194
- Chapter 10. Troubleshooting 203
- 10.2 Booting Problems 204
- 10.2.1 Booting From CD-ROM 204
- From this shell, you can 205
- 10.3 Installation Problems 206
- 10.3.2 NIM Installation 206
- 10.6.2.1 Power-On Password 208
- Figure 55. Operator Panel 210
- Table 35. LED Functions 210
- List of Abbreviations 219
- (continued) 223
- (continued) 223
- Name Address 225
- Company or Organization 225
- Phone No 225
- BUSINESS REPLY MAIL 226
- Printed in U.S.A 228
- SG24-469- 228
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