Compaq AlphaServer DS20 User's Guide Page 131
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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SRM Console 4-47
4.18
Environment Variable Summary
Environment variables pass configuration information between the console and
the operating system. Their settings determine how the system powers up, boots
the operating system, and operates. Environment variables are set or changed
with the set envar command and returned to their default values with the clear
envar command. Their values are viewed with the show envar command.
Table 4-6 lists the environment variables. Detailed descriptions follow. The
environment variables are specific to the SRM console.
Table 4-6 Environment Variable Summary
Environment
Variable Function
auto_action
Specifies the console’s action at power-up, a failure, or a
reset.
bootdef_dev Specifies the default boot device string.
boot_osflags Specifies the default operating system boot flags.
com*_baud Changes the default baud rate of the COM1 or COM2 serial
port.
console Specifies the device on which power-up output is displayed
(serial terminal or graphics monitor).
cpu_enabled Enables or disables a specific secondary CPU.
ew*0_mode Specifies the connection type of the default Ethernet
controller.
ew*0_protocols Specifies network protocols for booting over the Ethernet
controller.
kbd_hardware_
type
Specifies the default console keyboard type.
language Specifies the console keyboard layout.
- AlphaServer DS20 1
- Contents 3
- Chapter 4 SRM Console 4
- Chapter 5 AlphaBIOS Console 4
- Chapter 8 Troubleshooting 5
- Examples 6
- Intended Audience 11
- Document Structure 11
- Documentation Titles 12
- Chapter 1 13
- Overview 13
- System Architecture 14
- System Features 16
- System Management 17
- System Security 17
- Rear Panel Ports and Slots 20
- Console Terminal 22
- Chapter 2 27
- Installing the System 27
- Environmental Requirements 28
- Power Requirements 29
- Acoustical Data 30
- System Accessories 31
- Connecting the System 32
- UTP 10/100 Mbps 33
- Locking the System 34
- Chapter 3 35
- Operation 35
- Powering Up the System 36
- Power-Up Display 38
- ➊ Memory size is determined 39
- Booting DIGITAL UNIX 40
- (Continued) 41
- Installing DIGITAL UNIX 44
- Operation 3-11 45
- Booting OpenVMS 46
- Installing OpenVMS 52
- Booting Windows NT 54
- Internal Floppy Disk 71
- 3.10.5 LFU Commands 76
- 3.11.2 System Partitions 80
- Using the Halt Button 82
- Halt Assertion 83
- Chapter 4 85
- SRM Console 85
- Invoking the SRM Console 86
- Command Summary 87
- Continued on next page 92
- Creating a Power-Up Script 99
- Booting the Operating System 101
- Configuring the System 103
- Example 4–13 Isacfg Command 106
- Testing the System 108
- Making the System Secure 110
- Example 4–17 Login Command 112
- Stopping and Starting CPUs 115
- Updating Firmware 117
- Forcing a System Crash Dump 119
- Using Environment Variables 120
- Depositing and Examining Data 123
- Reading a File 126
- Initializing the System 127
- Finding Help 129
- Environment Variable Summary 131
- Chapter 5 143
- AlphaBIOS Console 143
- Starting AlphaBIOS 144
- Keyboard Conventions and Help 146
- AlphaBIOS Console 5-5 147
- PK-0725-96 147
- ➋ ➌ ➍ 152
- ➏ ➐ 6 MB ➑ FAT 152
- 5.3.3 PCI Configuration 154
- Hex Value 156
- 5.3.4 Memory Configuration 157
- 5.3.5 SCSI Configuration 158
- Setting Up the Hard Disk 164
- ➒ Disk setup options 165
- ➊ in Figure 5-16) 167
- ➊ Partition 2 200 MB FAT 167
- ➋ Choose Format Method: 168
- ➊ in Figure 5-17) 169
- Performing Setup Tasks 170
- ➎ Standard CMOS Setup options 171
- Installing Windows NT 174
- ESC = Discard Changes 176
- PK-0720D-97 178
- PK-0737C-97 180
- PK-0750B-96 184
- Running Utility Programs 186
- PK1467-98 187
- Chapter 6 189
- Managing the System Remotely 189
- RCM Overview 190
- First-Time Setup 191
- ➊ in Example 193
- RCM Commands 194
- Using the RCM Switchpack 200
- Troubleshooting Guide 204
- Modem Dialog Details 205
- Chapter 7 207
- Installing Components 207
- Installing Components 7-3 209
- Replacement 210
- IP00206-97 212
- Installing a CPU Module 214
- IP00215A 215
- IP00315A 217
- Installing a PCI or ISA Card 218
- Chapter 8 221
- Troubleshooting 221
- System Does Not Power Up 222
- Appendix A 225
- SCSI Bus Configurations 225
- Single-Bus Configurations 226
- Controllers) 227
- Split-Bus Configuration 228
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