System information

Troubleshooting Hardware and Booting Problems 3-45
Booting: Router Partially Boots from Flash and Displays Boot Prompt
Booting: Router Partially Boots from Flash and Displays Boot Prompt
Symptom: When a user is booting a Cisco 2000, Cisco 2500, Cisco 3000, or Cisco 4000 series
router from Flash memory, the boot process halts and the console displays the boot prompt
[router(boot)>]. In addition, the router does not route, although exec commands might appear to be
operational.
Table 3-12 outlines the problems that might cause this symptom and describes solutions to those
problems.
Table 3-12 Booting: Vector Error Occurs When Booting from Flash Memory
Router hardware
problem
Troubleshoot router hardware as discussed earlier in this chapter.
1 TFTP = Trivial File Transfer Protocol
Possible Problem Solution
No system image in
Flash memory
Step 1 Use the show flash exec command to determine whether an image exists
in Flash memory.
Step 2 If no image exists, use the copy tftp flash privileged exec command to
copy the system image from your TFTP
1
server to the router’s Flash
memory.The following is an example of the use of the copy tftp flash
command:
router# copy flash tftp filename
The router asks you for the IP address of the TFTP server and the name of
the image file you are copying to the server. A sample of the output for this
command using IP address 131.108.10.6 and filename ic92130n follows:
IP address of remote host [255.255.255.255]?
131.108.10.6
Name of file to copy []? ic92130n
writing ic92130n
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
router#
No system image in
Flash memory
Step 3 Enter the reload privileged exec command to reboot the router.
Syntax:
The following is the syntax for the reload command:
reload[text]|[in [hh:]mm [text]] | [at hh:mm [month day | day month]
[text]] | [cancel]
Examples:
The following example illustrates how to use the reload command to
immediately reload the software on the router:
Router# reload
The following example illustrates how to use the reload command to
reload the software on the router in 10 minutes:
Router# reload in 10
Router# Reload scheduled for 11:57:08 PDT Fri Apr 21
1996 (in 10 minutes)
Proceed with reload? [confirm]
Router#
Possible Problem Solution