Command Default
The environment variables have these default values:
MANUAL_BOOT: No (0)
BOOT: Null string
ENABLE_BREAK: No (Off or 0) (the automatic boot process cannot be interrupted by pressing the Break
key on the console).
HELPER: No default value (helper files are not automatically loaded).
PS1 device:
CONFIG_FILE: config.text
BAUD: 9600 b/s
SWITCH_NUMBER: 1
SWITCH_PRIORITY: 1
Environment variables that have values are stored in the flash: file system in various files. Each line in
the files contains an environment variable name and an equal sign followed by the value of the variable.
A variable has no value if it is not listed in these files; it has a value if it is listed even if the value is a null
string. A variable that is set to a null string (for example, “ ”) is a variable with a value.
Many environment variables are predefined and have default values.
Note
Command Modes
Boot loader
Command History
ModificationRelease
This command was introduced.Cisco IOS XE 3.3SECisco IOS XE 3.3SE
Usage Guidelines
Environment variables are case sensitive and must be entered as documented.
Environment variables that have values are stored in flash memory outside of the flash: file system.
Under typical circumstances, it is not necessary to alter the setting of the environment variables.
The MANUAL_BOOT environment variable can also be set by using the boot manual global configuration
command.
The BOOT environment variable can also be set by using the boot system filesystem:/file-url global
configuration command.
The ENABLE_BREAK environment variable can also be set by using the boot enable-break global
configuration command.
The HELPER environment variable can also be set by using the boot helper filesystem: / file-url global
configuration command.
Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)
941
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