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16.4.10 SET[ENV]
The SETENV command sets the specified environment variable to the indicated
value and displays the results of the setting.
>>> SET[ENV]
environment value
[
value
]
The output has the format:
environment = value
, where environment is the
result of the SETENV entered at the console prompt. The SETENV PASSWORD
command does not conform to this behavior for security reasons.
This command requires that the name of the environment variable be explicitly
entered. The environment variable name cannot be abbreviated.
Predefined Environment Variables
The following are the predefined environment variables and their acceptable
values:
• AUTO_ACTION
Set the default halt action code. This code specifies the default action that
the console should take for all error halts and power up halts. The default
value is stored in nonvolatile RAM and is retained across power cycles. If the
nonvolatile RAM fails for any reason, the console initializes this field to the
value of HALT. The only acceptable values for this variable are:
• Restart (RESTART)
• Boot (BOOT)
• Halt (HALT)
Table 66 describes action codes corresponding to internally-generated halts.
The variable can be set by entering either the corresponding number or these
values the first two characters of the action name.
• BOOTDEF_DEV
Set the default boot device. The value must be a valid boot device name
as specified by the BOOT command. The entered names are not validated.
Entering a period (.) resets the boot device to the default value.
The default boot flags can be set up at the same time that the default boot
device is being set up. This eliminates the need for issuing a SET BOOT_
OSFLAGS command to set up the default boot device and default boot flags.
The default flags portion of the command is optional. This value is stored in
nonvolatile RAM and is retained across power cycles.
• BOOT_OSFLAGS
Set the default boot flags, an ASCII string of up to eight characters. The
string must be enclosed in quotations ("), if it is to be handled without case
conversion or if it contains special characters. (The comma (,) is not a special
character.)
• BOOT_RESET
If set, causes system reset to be performed before the boot is attempted. It
has the effect of performing an INITIALIZE command before performing the
boot.
16–20 Console
- DEC 3000 300/400/500/600/700 1
- /800/900AXPModels 1
- SystemProgrammer’sManual 1
- Contents 3
- 8 TURBOchannel Dual SCSI ASIC 5
- 9 I/O Programming 5
- 17 DEC 3000 AXP PALcode 8
- Intended Audience 13
- Document Contents 13
- Associated Documents 14
- Conventions 15
- MLO-012116 19
- MLO-012117 22
- MLO-012118 25
- Memory and I/O Addressing 37
- 2.1 Memory Alignment 38
- 2.2 Memory Address Spaces 38
- 2.3 I/O Address Spaces 39
- Memory and I/O Addressing 2–7 43
- 2–8 Memory and I/O Addressing 44
- 2.5 CPU Registers 45
- MR−0061−93RAGS 46
- 2.6 Bcache Tag Space 48
- TURBOchannel I/O Registers 49
- W1C = Cleared when 1 written 51
- 05 04 03 02 01 0031 52
- MR−0066−93RAGS 52
- MR−0068−93RAGS 55
- /800/900) Models 57
- (Alternate address) 58
- 0 P 0 MAGIC # 60
- Bits Access Init. Description 61
- 26:0 R/WU UNP Failing address 61
- 31:27 R/WU UNP Reserved 61
- MR−0072−93RAGS 62
- (from FADR) 62
- Table 11 IMR—1.C281.FFFC 64
- Table 11, 1.C281.FFFC 64
- MR−0074−93RAGS 65
- 3.3.8 Scatter/Gather Map 67
- Address ASIC Registers 69
- 4.1.1 Operation 70
- 4.1.2 Boot Time 71
- 4.1.3 Improper Configuration 72
- 4.1.4 Disabling Memory 72
- 001520 19 18 163133 32 73
- MR−0075−93RAGS 73
- 05 04 0009 08151631 73
- MR−0076−93RAGS 73
- 05 04 002031 75
- MR−0078−93RAGS 75
- 5.2 Organization 78
- V F X PPN XXXX 79
- V P PPN UNP 79
- 6.1 Comparison of Features 82
- 6.2 CXTurbo Address Map 83
- 6.4 SFB ASIC Functions 87
- 6.4.1 Mode Register 89
- 00151631 90
- MR−0084−93RAGS 90
- 6.4.2 Planemask Register 92
- 6.4.3 Raster Op Register 93
- 6.4.4 PixelMask Register 94
- 6.4.6 PixelShift Register 95
- 6.4.7 Address Register 95
- 6.4.8 DEEP Register 95
- CLEAR_INTERRUPT Registers 96
- 6.4.10 Video Timing Registers 96
- (8 ms / 512) * 97
- 0000 BP SYNCH FP PIXELS 98
- 0000 BP SYNCH FP SLs 98
- 6.5 Bt459 RAMDAC 100
- 1.E200.0004 104
- 7.1 IOCTL Address Map 107
- 7.2 System FEPROM 108
- IOCTL ASIC 114
- /900 Models) 123
- Address Content Value 124
- 1.A008.007C TEST Pattern 7 AA 124
- 7.5 LANCE Register Addresses 125
- 7.6 SCC Register Addresses 125
- Address Register 126
- 7.7 RTC Register Addresses 127
- 7.8 ISDN Register Addresses 128
- (continued on next page) 129
- TURBOchannel Dual SCSI ASIC 133
- 8.2 Internal Registers 135
- INTERRUPT CONTROL 136
- Bit Access Reset Description 139
- 15:0 R/W 0 Interrupt Enable 139
- 31:16 R/W 0 Interrupt Mask 139
- Bit Access Reset Descriptron 140
- 07 0008151624 2331 141
- MR−0100−93RAGS 141
- MR−0102−93RAGS 143
- Read Register Write 145
- I/O Programming 147
- 9–2 I/O Programming 148
- 9.2.1 Physical DMA 149
- 9–4 I/O Programming 150
- 9.4.1 DMA Size 151
- 9.4.2 DMA Arbitration 151
- 9.4.3 I/O Timeout 152
- 9.4.4 I/O Conflicts 153
- 9.5 JUNKIO Subsystem 154
- I/O Programming 9–9 155
- 9–10 I/O Programming 156
- I/O Programming 9–13 159
- 9–14 I/O Programming 160
- 9.6 SCSI Interface 161
- 00010BID 00001PAR XXXXXB00 162
- Config 1 Config 2 Config 3 162
- MR−0184−93RAGS 164
- XX XX CCF 164
- 9.6.6 Aborting Transactions 165
- 15314763 171
- MR−0106−93RAGS 171
- PS[CM] Kernel mode 176
- and further information 176
- 11.1 Processor initialization 185
- 11.1.2 SROM Sequence 186
- 11.1.3 SYSROM Sequence 186
- 11.2 Bcache Initialization 187
- Firmware: Overview 189
- Firmware: Overview 12–3 191
- 12.2 Overview of the Console 192
- 12.4 Overview of PALcode 192
- Firmware: Overview 12–5 193
- DEC 3000 AXP Firmware ROMs 195
- 13.3 System ROM Format 197
- MLO-012121 202
- 14.2 Power-On Output 205
- 14.5 System Firmware Entry 209
- 14.5.3 Halt 212
- 14.5.4 Reentry Control 213
- Configuration 215
- 15.1 Main Configuration Table 216
- 15–4 Configuration 218
- from the beginning of 220
- 16.1 Console Device 225
- 16–2 Console 226
- 16.1.3 Attached Terminals 227
- 16.1.4 Built-In Terminals 227
- 16.2 Console Saved State 228
- 16.3 Console Program 228
- 16.3.2 Console Operation 229
- 16–6 Console 230
- 16.4 Console Commands 231
- 16.4.2 CONTINUE 233
- 16.4.3 DEPOSIT 233
- Console 16–11 235
- Console 16–13 237
- 16.4.4 EXAMINE 238
- Console 16–17 241
- 16.4.5 HALT 242
- 16.4.6 HELP 242
- 16.4.7 INITIALIZE 242
- 16.4.8 LOGIN 243
- 16.4.9 REPEAT 243
- 16.4.10 SET[ENV] 244
- 16–22 Console 246
- 16.4.11 SHOW/PRINTENV 249
- 16–26 Console 250
- Console 16–27 251
- 16.4.12 START 254
- 16.4.13 TEST 254
- 16.4.14 ! (COMMENT) 255
- 16.4.15 Console Security 255
- 16.5 Console Data Structures 256
- Console 16–33 257
- 16–34 Console 258
- Console 16–35 259
- HWRPB + 260
- to TBhint block 260
- to HWRPB + DSRDB 262
- are hexadecimal 262
- Name Value 264
- MR−0152−93RAGS 266
- 63 08 0039 266
- SBZ Proc_cnt SBZ PALtype alph 266
- Console 16–43 267
- 16–44 Console 268
- Component Description 269
- Autolock 270
- 16–48 Console 272
- 16–50 Console 274
- Console 16–51 275
- 16.6.1 The FIXUP Routine 277
- 16.6.2 The DISPATCH Routine 278
- Arguments 280
- Description 280
- Returns: 280
- PROCESS_KEYCODE 288
- RESETENV 292
- RESET_TERM 293
- ID-Name Type Description 295
- Console 16–71 295
- SET_TERM_INTR 296
- DEC 3000 AXP PALcode 301
- 17.3 MACHINE_RESET PALcode 305
- 17.4 Machine Check PALcode 305
- 17.5 INTERRUPT PALcode 306
- TURBOchannel Support 307
- Nonvolatile RAM 309
- MLO-012124 310
- MR−0158−93RAGS 312
- LK401_ID 312
- MR−0159−93RAGS 313
- CONSOLE_ID 313
- 19.5 Temporary Storage (TEMP) 314
- 19.8 NVR Security Flags 315
- 19.9 NVR Default Boot Flags 316
- Nonvolatile RAM 19–9 317
- 19.10 NVR SCSI Information 1 318
- Nonvolatile RAM 19–11 319
- 19–12 Nonvolatile RAM 320
- Dense and Sparse Space 321
- A–2 Dense and Sparse Space 322
- Dense and Sparse Space A–3 323
- A.3 Minimum Granularity 324
- A.6 Mapping I/O Addresses 325
- : Longword PA 327
- 0 1 7 0 0 420005 0 XX 327
- A–8 Dense and Sparse Space 328
- Glossary 329
- Glossary–2 330
- Glossary–3 331
- Glossary–4 332
- Technical Support 341
- Electronic Orders 341
- BUSINESS REPLY MAIL 344
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