Boot System - Cisco Catalyst 3550 Command Reference Manual

boot system

boot system
Use the boot system global configuration command to specify the Cisco IOS image to load during the
next boot cycle. Use the no form of this command to return to the default setting.
Syntax Description
filesystem:
/file-url
Defaults 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 Global configuration
Command History Release
12.1(4)EA1
Usage Guidelines Filenames and directory names are case sensitive.
If you are using the archive download-sw privileged EXEC command to maintain system images, you never
need to use the boot system command. The boot system command is automatically manipulated to load the
downloaded image.
This command changes the setting of the BOOT environment variable. For more information, see
Appendix A, "Boot Loader Commands."
Related Commands Command
show boot
Catalyst 3550 Multilayer Switch Command Reference
2-26
boot system filesystem:/file-url ...
no boot system
Alias for a Flash file system. Use flash: for the system board Flash device.
The path (directory) and name of a bootable image. Separate image names
with a semicolon.
Modification
This command was first introduced.
Description
Displays the settings of the boot environment variables.
Chapter 2 Cisco IOS Commands
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