Troubleshooting

Copying a Cisco IOS Image to Flash Memory

Enabling Booting from Flash Memory

To disable Break (after 60 seconds) and enable the boot system flash command, enter the config-registercommand with the value shown in the following example:

Router> enable Password: enablepassword Router# config term

Enter configuration commands, one per line.

Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Z config-reg 0x2102

^Z

Router#

Copying a Cisco IOS Image to Flash

Memory

You may need to copy a new Cisco IOS image to Flash memory whenever a new image or maintenance release becomes available. Use the instructions on page 1-6to obtain the latest version. Use the copy tftp flash command for the copy procedure.

Take the following steps to copy a new image to Flash memory:

1.Enter the show flash command to make sure there is enough space available before copying a file to Flash memory. Compare the size of the file you want to copy to the amount of available Flash memory displayed.

2.Make a backup copy of the current image.

3.Enter enable mode and then enter the copy tftp flash command to copy the new image into Flash memory:

Router> enable

Password: enablepassword

Router# copy tftp flash

Maintenance

4-13