Boot - Cisco Catalyst 3750 Command Reference Manual

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boot

Use the boot boot loader command to load and boot an executable image and to enter the command-line

Syntax Description

The switch attempts to automatically boot the system by using information in the BOOT environment

variable. If this variable is not set, the switch attempts to load and execute the first executable image it

can by performing a recursive, depth-first search throughout the flash file system. In a depth-first search

of a directory, each encountered subdirectory is completely searched before continuing the search in the

original directory.

Command Modes

Command History

Usage Guidelines

When you enter the boot command without any arguments, the switch attempts to automatically boot

the system by using the information in the BOOT environment variable, if any. If you supply an image

name for the file-url variable, the boot command attempts to boot the specified image.

When you set boot loader boot command options, they are executed immediately and apply only to the

current boot loader session. These settings are not saved for the next boot operation.

Filenames and directory names are case sensitive.

This example shows how to boot the switch using the new-image.bin image:

switch: boot flash:/new-images/new-image.bin

After entering this command, you are prompted to start the setup program.

Catalyst 3750 Switch Command Reference

boot [-post | -n | -p | flag] filesystem:/file-url ...

(Optional) Run the loaded image with an extended or comprehensive power-on

self-test (POST). Using this keyword causes POST to take longer to complete.

(Optional) Pause for the Cisco IOS debugger immediately after launching.

(Optional) Pause for the JTAG debugger right after loading the image.

Alias for a flash file system. Use flash: for the system board flash device.

(Optional) Path (directory) and name of a bootable image. Separate image names

with a semicolon.

Modification

This command was introduced.

Catalyst 3750 Switch Boot Loader Commands