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Route Switch Processor (RSP8) Installation and Configuration Guide
OL-4920-02
Reference Information
To disable the Break function and enable the boot system flash device:filename command, use the
config-register command with the value shown in the following example:
Router(config)# config-reg 0x0102
Router(config)# end
Router#
Enabling a Boot from the Flash Disk
To enable a boot from the Flash Disk, set configuration register bits 3, 2, 1, and 0 to a value between 2
and 15 in conjunction with the boot system [disk0: | disk1:]filename configuration command. This
section includes only descriptions of boot commands specific to the Flash Disk. (You can use either the
slotn: argument or the diskn: argument for boot commands.)
Following are definitions of the various Flash Disk-related boot commands:
boot system flash disk0:—Boots the first file in the Flash Disk in slot 0.
boot system flash disk1:—Boots the first file in the Flash Disk in slot 1.
boot system flash disk0:herfile—Boots the file named herfile from the Flash Disk in slot 0.
boot system flash disk1:hisfile—Boots the file named hisfile from the Flash Disk in slot 1.
Note As you use boot commands, pay attention to how you use the Spacebar, which influences the way your
system interprets the commands. Also, be sure that you define the entire path to a file as you type the
boot commands; otherwise, the system might not be able to find the file.
For example, notice the difference in the following correct and incorrect commands:
System(config)# boot flash system disk0:myfile
Based on the preceding correct command, the system boots the file specified (myfile).
System(config)# boot flash system disk0: myfile
Based on the preceding incorrect command, the system finds the filename field blank because there is a
space after disk0:. In this case, the system ignores the filename argument and boots the first file on the
Flash Disk, which might not be the file called myfile.
Use the following procedure to enable booting the file myfile from a Flash Disk:
Step 1 Enter global configuration mode and specify an image filename in the PC Card slot from which to boot
by using the configure terminal command, as follows:
System# configure terminal
Enter configuration commands, one per line. End with CTRL-Z.
System(config)# boot system flash disk0:myfile
Step 2 Enable the boot system flash disk0:myfile command using the config-register command with the
hexadecimal value shown in the following example:
System(config)# config-reg 0x2102