C-4
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-04
AppendixC Using the ROM Monitor
Entering the ROM Monitor Mode
–
help—Displays a summary of ROM monitor commands (equivalent to ?).
–
meminfo—Displays size in bytes, starting address, available range of main memory, the
starting point and size of packet memory, and size of nonvolatile memory (NVRAM). The
following example shows the meminfo command:
rommon 9 > meminfo
Main memory size: 32 MB.
Available main memory starts at 0xa000e000, size 32704KB
IO (packet) memory size: 25 percent of main memory.
NVRAM size: 32KB
• meminfo [-l]—The meminfo command with the -l option displays supported DRAM
configurations. The following example shows an example of the meminfo -l command:
rommon 10 > meminfo -l
Supported memory configurations:
DIMM 0 DIMM 1
-------------------
4M
8M-DUAL
16M
32M-DUAL
4M
4M 4M
4M 8M-DUAL
4M 16M
4M 32M-DUAL
8M-DUAL
8M-DUAL 4M
8M-DUAL 8M-DUAL
8M-DUAL 16M
8M-DUAL 32M-DUAL
16M
16M 4M
16M 8M-DUAL
16M 16M
16M 32M-DUAL
32M-DUAL
32M-DUAL 4M
32M-DUAL 8M-DUAL
32M-DUAL 16M
32M-DUAL 32M-DUAL
• reset or i—Resets and initializes the router, similar to power on.
• show rom-monitor— Shows version of read-only ROMMON, and if present, the upgrade version of
ROMMON. It also shows the current version of ROMMON, which version will be selected for
execution when the Cisco IOS software is booted again. This command isavailable in the Cisco IOS
exec mode.
–
showmon—Available in the ROMMON command mode. Provides the same information as the
show rom-monitor command in the Cisco IOS exec mode.
• upgrade rom-monitor <file<URL>|preference<readonly|upgrade>>—Installs and reloads a new
version of ROMMON in the Cisco IOS exec mode. URL refers to the path where the new ROMMON
image is stored. Prompts the user to save the configuration.
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