Manually Booting the System, Dir bootflash | Cisco Systems 12406

Chapter 3 Installing the Router

IOS Software Configuration for the Router

Manually Booting the System

If your router does not find a valid system configuration image, or if you interrupt the boot sequence, the system might enter read-only memory (ROM) monitor mode and display the ROM monitor prompt (rommon>). From ROM monitor mode, you have access to a number of commands to locate and boot a valid system image.

Locating a Valid Cisco IOS Software Image

To locate a Cisco IOS software image for manually booting the router from the ROM monitor prompt (rommon>), follow the steps below:

Step 1 Use the ROM monitor mode dir bootflash command to examine the contents of the onboard Flash memory SIMM (NVRAM) on the RP:

rommon	1> dir bootflash:
File size		Checksum	File name
3277967 bytes (0x32048f)		0x6b331e30	gsr-p-mz.120-7.4.5
rommon	2>

Step 2 If the onboard Flash memory SIMM contains the desired Cisco IOS boot image, proceed to the “Booting from the Cisco IOS Software Image” section on

page 3-48. Otherwise, continue looking for a valid image by examining the contents of the Flash memory card in either PCMCIA slot 0 or slot 1 on the RP.

You can determine the content of the card by issuing the ROM monitor mode dir slotn: command, where n represents either 0 (slot 0) or 1 (slot 1). The following example of the command lists the contents of the Flash memory card in slot 0:

rommon	2> dir slot0:
File size		Checksum	File name
3277967 bytes (0x32048f)		0x6b331e30	gsr-p-mz.120-7.4.5
rommon	3>

		Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide

	OL-11497-03			3-47
	OL-11497-03			3-47

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Cisco Systems 12406 manual Manually Booting the System, Locating a Valid Cisco IOS Software Image, Dir bootflash, Dir slot0

Contents

Installing the Router Installing a Router Tools and Equipment Required Installing the Rack-Mount Brackets OptionalInstalling the Optional Rack-Mount Brackets Installing the Optional Rack-Mount Brackets Lower and Upper Center-Mount Brackets Installing Center-Mount Brackets Optional Repeat through for both upper center-mount brackets Installing the Optional Center-Mount Brackets Power supply Installing the Chassis in a Rack OL-11497-03 Supplemental Bonding and Grounding Connections Installing the Chassis on a Tabletop or Flat Surface Supplemental Bonding and Grounding Port for Nebs Compliance Crimping the Lug Connecting RP and Line Card Cables Chassis Cable-Management Bracket Connecting Alarm Card Cables GRP Console and Auxiliary Ports Connecting to the Console and Auxiliary Ports GRP Console DCE and Auxiliary DTE Port Connections Pin Signal Input/Output Description GRP Console Port SignalsGRP Auxiliary Port Signals RTS PRP Console and Auxiliary Port Connections PRP Console and Auxiliary Ports Console Port Pin Signal Input/Output Description PRP Console Port Signals Auxiliary Port Pin Signal Installing a Flash Memory CardPRP Auxiliary Port Signals 10 Flash Memory Card Slot Opening 11 RJ-45 and MII Ethernet Connections Connecting the GRP to an Ethernet Network MDC Pin1 Out Input/Output Description Code Pin Pin Out Input/Output Description Code Pin Signal Connecting the PRP to an Ethernet Network 14 Using the Ethernet Port on the PRP PRP Ethernet Connections Ethernet Port Pin Signal Description Crossover Cable Pinout for Connecting Two PRPs Parameter Connecting to an AC Power SourceParameter RJ-45 Router Power Combination 18 AC Power Distribution Unit Connecting to a DC Power Source DC PDU Power a Power On the Router Alarm Cisco IOS Software Images IOS Software Configuration for the Router Conditions to Check Before System Startup Starting the Router and Observing Initial Conditions Overview of the Boot Process OL-11497-03 Display Meaning Source RP Alphanumeric LED RP Interfaces Using the RP LEDs GRP Interfaces Using the GRP LEDs PRP Interfaces Using the PRP LEDs ETH External Network Interface System Configuration Dialogue Dir slot0 Manually Booting the SystemDir bootflash Locating a Valid Cisco IOS Software Image Command Description Booting from the Cisco IOS Software Image Before You Begin Router ConfigurationSetup Command Cisco IOS User Interface User Interface Command ModesGlobal Configuration Mode Privileged Exec Mode User Exec Mode ROM Monitor Mode Interface Configuration ModeSubinterface Configuration Mode Configuration Changes Setup Command Interactive Script Example SDCC1/0 Configuring interface POS1/0 Is this interface in use?yes Host Name Configuring Global ParametersPasswords Protocols Configuring Network Interfaces PRP Ethernet Interfaces GRP Ethernet Interfaces Line Card Interfaces Router# show version Show version CommandChecking the Software Version Router# show running-config Verifying the Running Configuration SettingsShow running Config Command Example No service tcp-small-servers Hostname Router Router# copy running-config startup-config Saving the Running Configuration Settings to NvramReviewing the Running Configuration Settings Show startup-config Command No logging trap Installing the Flash Memory Card in a RP Using Flash Memory Cards in the RP Formatting a Flash Memory Card Removing the Flash Memory Card from an RP Router# format slot0 Specify a Boot ImageRouter# configure terminal Router# cd slot1 Flash Memory Console Commands Router# delete slot0info Router# cd bootflash Router# squeeze slot0 Copying Files Booting from Flash MemoryRouterconfig# boot system flash devicefilename Routerconfig# config-reg Ctrl-Z Router# copy tftpmyfile1 slot0myfile1 Router# copy tftpfilename bootflashslot0slot1 filename Router# copy tftpnew.image slot0new.image Copying a Cisco IOS Software Image Copying Cisco IOS Software Updates Router# copy slot1image.new slot0image.new Copying Files Between RP Memory and a Flash Memory Card Copy startup-config slot0 slot1filename Router# show bootvar Router# dir slot0 Router# copy startup-config slot0myfile2 Router# copy running-config slot0myfile2 Copy running-config slot0slot1filename Router# copy startup-config running-config Copy slot0slot1filename startup-configRouter# copy slot0myfile startup-config Locked Blocks in Flash Memory Cards If You Need More Information Installing the Router If You Need More Information OL-11497-03