Appendix B Using the ROM Monitor
ROM Monitor Command Descriptions
•boot—Boots from the first Cisco IOS image in internal flash memory.
•boot flash:—Boots from the first Cisco IOS image in the internal Flash memory.
•boot flash: partition:—Boots from the first Cisco IOS image in the specified partition in internal flash memory.
•boot flash: filename—Boots from the Cisco specified IOS image in internal flash memory.
•boot flash: partition: filename—Boots from the specified Cisco IOS image in the specified partition in internal flash memory.
•boot slot0:—(Cisco 2691 only) Boots from the first Cisco IOS image in the first partition in flash memory in slot 0.
•boot slot0:2:—(Cisco 2691 only) Boots from the first Cisco IOS image in the second partition in compact flash memory in slot 0.
•boot slot0: filename—(Cisco 2691 only) Boots from the specified Cisco IOS image in compact flash memory in slot 0.
•boot slot1:3: filename—(Cisco 2691 only) Boots from the specified Cisco IOS image in the third partition in compact flash memory in slot 1.
•boot filename tftpserver— Boots from the specified Cisco IOS image on the specified TFTP server (after first booting from flash). For example:
boot c2600-i-mz 172.15.19.11
Note Use the CLI commands show version and show hardware to see the source of the currently running Cisco IOS image.
Informational Commands in the ROM Monitor
dev—(Cisco 2691 only) Lists boot device identifications on the router, for example:
rommon 2 > | dev |
Devices in | device table: |
id | name |
flash: | internal compact flash |
slot0: | external compact flash |
eprom: | eprom |
rommon 3 > | |
dir device:[partition:]—Lists the files on the named device. For example:
rommon 8> dir flash:
File size | Checksum | File name |
2229799 bytes (0x220627) | 0x469e | C2600-j-m2.113-4T |
| | help—Shows a summary of ROM monitor commands (equivalent to ?). |
| | meminfo—Displays main memory size, starting address, and available range; size of packet memory; |
| | and size of 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 |
| | Cisco 2600 Series Routers Hardware Installation Guide | | | |
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| OL-2171-06 | | | B-5 | |
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