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Cisco ASR 1000 series Hardware Installation Manual page 576

Aggregation services routers

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Troubleshooting the Upgrade

Table C-5

Upgrade-Related Troubleshooting Tips (continued)

Symptom

An error message similar to the

following example is displayed

when you try to boot the system,

and then the router switches to the

rommon prompt:

Directory an_image.bin not

found

Unable to locate an_image.bin

directory

Unable to load an_image.bin

boot: error executing "boot

harddisk:an_image.bin"

autoboot: boot failed,

restarting

Cisco ASR 1000 Series Aggregation Services Routers Hardware Installation Guide

C-8

Cause

The image file name specified in

the boot command is invalid.

Appendix C

Troubleshooting Initial Startup Problems

Corrective Action

Perform the following steps:

Verify that the image file is present in the

1.

harddisk:, bootflash:, or external USB device

(usb0: or usb1:) by using the dir file-system

command at the rommon prompt.

2.

When you run the dir file-system command, if a

message similar to "Please reset before

continuing" is displayed, reconfigure the

configuration-register to 0x0 and then run the

reset command to allow the router to enter the

rommon prompt without reattempting to boot

using an invalid image.

rommon> dir harddisk:

Please reset before continuing <<<<<

rommon> confreg 0x0

rommon> reset

Boot the router from the rommon prompt by

3.

using a command similar to the following

example:

rommon>

BOOT=harddisk:asr1000rp1-ipbasek9.03.05.01

.S.152-1.S1.bin

To save the current environment variable setting,

4.

run the sync command as follows:

rommon> sync

Ensure that autoboot has been enabled by using

5.

the confreg 0x2102 command at the rommon

prompt, and then run the reset command at the

same prompt.

If there is no valid image in either the local file

system or the external file system, you can run the

boot tftp: command to install the image that is on the

TFTP server. To do this, ensure that the management

Ethernet interface is physically connected to the

default gateway, configure the ROMmon variables

with the appropriate values, and then run the boot

tftp: command as shown in the following example:

rommon >

IP_SUBNET_MASK=255.255.255.0

TFTP_SERVER=192.0.2.2

TFTP_FILE=asr1000rp1-ipbasek9.03.05.01.S.152-1

.S1.bin

DEFAULT_GATEWAY=192.0.2.1

IP_ADDRESS=192.0.2.26

rommon > boot tftp:

OL-13208-11

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