Installation guide

Command Reference
20
Cisco IOS 11.2(15)GS2
hw-module boot system
Use the hw-module boot system global configuration command to define system boot parameters
when these are different on the primary GRP and the secondary GRP. Use the no form of this
command to remove the startup system image specification.
hw-module slot number boot system flash [device:][filename]
no hw-module slot number boot system flash [device:][filename]
Syntax Description
Default
The route processor uses the values set by the boot system command, when no other explicit boot
parameters are defined for a particular slot.
The router uses the configuration register settings to determine the default system image filename.
The router forms the default boot filename by starting with the word cisco and then appending the
octal equivalent of the boot field number in the configuration register, followed by a hyphen (-) and
the processor type name (cisconn-cpu). See the appropriate hardware installation guide for details
on the configuration register and default filename. See also the hw-module config-register
command.
Command Mode
Global configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.2 GS.
For this command to work, the config-register command must be set properly.
Use this command to specify different boot images for the primary GRP and the secondary GRP.
flash This keyword boots the router from a Flash device, as specified by the
device: argument. When you omit all arguments that follow this keyword,
the system searches the PCMCIA slot 0 for the first bootable image.
device: (Optional) Device containing the system image to load at startup. The
colon (:) is required. Valid devices are as follows:
• bootflash—Internal Flash memory.
• nvram—NVRAM
• slot0—First PCMCIA slot. This device is the default if you do not
specify a device.
• slot1—Flash memory card in the second PCMCIA slot.
filename (Optional when used with boot system flash) Name of the system image to
load at startup. It is case sensitive. If you do not specify a filename, the
router loads the first valid file in the specified Flash device, the specified
partition of Flash memory, or the default Flash device if you also omit the
device: argument.