Chapter 4 System Startup and Basic System Configuration
Manually Booting the System
Locating a Valid Cisco IOS Software Image
Use the following procedure to locate a Cisco IOS software image to manually boot the router from the ROM monitor prompt (rommon>).
Step 1 Enter the ROM monitor mode dir bootflash command to examine the contents of the onboard flash memory in NVRAM on the RP.
rommon | 1> dir bootflash: |
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File size | Checksum | File name | |
3277967 bytes (0x32048f) | 0x6b331e30 | ||
rommon | 2> |
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•If the memory contains the desired Cisco IOS boot image, proceed to the “Booting from the Cisco IOS Software Image” section on page
•If the onboard flash memory does not contain the desired Cisco IOS boot image, proceed to the next step.
Step 2 Enter the dir slotn: command, where n represents either slot 0 (0) or slot 1(1) to find a valid image by examining the contents of the flash memory card.
The following example shows the contents of the flash memory card in slot 0:
rommon | 2> dir slot0: |
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File size | Checksum | File name | |
3277967 bytes (0x32048f) | 0x6b331e30 | ||
rommon | 3> |
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After you locate a valid boot image, proceed to the “Booting from the Cisco IOS Software Image” section on page
Booting from the Cisco IOS Software Image
To boot an image manually, issue the appropriate ROM monitor mode boot command after locating a valid Cisco IOS software image. Boot the image using one of the boot commands shown in Table
| Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide |
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