25-10
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 25 Modifying the Switch Boot Configuration
Setting the BOOT Environment Variable
This example shows how to set the switch to ignore the NVRAM configuration at the next startup:
Console> (enable)
set boot config-register ignore-config enable
Configuration register is 0x1860
ignore-config: enabled
auto-config: recurring
console baud: 2400
boot: the ROM monitor
Console> (enable)
Setting the Configuration Register Value
To set the configuration register value, perform this task in privileged mode:
This example shows how to set the configuration register value to 0x90f:
Console> (enable)
set boot config-register 0x90f
Configuration register is 0x90f
ignore-config: disabled
auto-config: non-recurring
console baud: 4800
boot: image specified by the boot system commands
Console> (enable)
Setting the BOOT Environment Variable
Note
The BOOT environment variable settings are not copied automatically to a redundant supervisor engine
(if present). You must set the BOOT variable separately for each supervisor engine in the switch.
These sections describe how to modify the BOOT environment variable:
•
Setting the BOOT Environment Variable, page 25-10
•
Clearing the BOOT Environment Variable Settings, page 25-11
Setting the BOOT Environment Variable
To set the BOOT environment variable, perform this task in privileged mode:
Task
Command
Set the configuration register.
set boot config-register 0x
value
[
mod
]
Task
Command
Set the BOOT environment variable.
set boot system flash
device:
[
filename
]
[
prepend
] [
mod
]
