Cisco 7000 Series Hardware Installation And Maintenance Manual page 180

Installing and Configuring Processor Modules
To disable Break and enable the boot system flash command, enter the config-register command
with the value shown in the following example:
Copying to Flash Memory
Copying a new image to Flash memory might be required whenever a new image or maintenance
release becomes available. To copy a new image into Flash (write to Flash), you must first reboot
from ROM and then copy the new image into Flash. You cannot copy a new image into Flash while
the system is running from Flash. Use the copy tftp flash command for the copy procedure.
Following is the sample output for reloading the router and then copying a file (called 7K10020Z)
to Flash memory from a TFTP server (called server1):
The configuration register setting 0x0101 tells the system to boot from ROM, but does not reset the
Break disable.
The configuration register setting 0x102 tells the system to boot from ROM, disable Break, and
check for a default netboot filename.
The system is now ready to be configured to boot from the new image you copied to Flash. For more
information on the copy tftp flash command, and other related commands, refer to the set of router
products configuration publications.
5-22 Cisco 7010 Hardware Installation and Maintenance
config-reg 0x102
^Z
router#
Router# configure terminal
Enter configuration commands, one per line. End with CTRL/Z.
config-reg 0x101
^Z
Router# reload
...
router# copy tftp flash
IP address or name of remote host [255.255.255.255]? server1
Name of tftp filename to copy into flash []? 7K10020Z
copy 7K10020Z from 131.131.101.101 into flash memory? [confirm] <Return>
xxxxxxxx bytes available for writing without erasure.
erase flash before writing? [confirm] <Return>
Clearing and initializing flash memory (please wait)####...
Loading from 101.2.13.110: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!... [OK - 324572/524212 bytes]
Verifying checksum...
VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV..
Flash verification successful. Length = 1204637, checksum = 0x95D9
router# config term
Enter configuration commands, one per line. End with CTRL/Z.
config-reg 0x102
^Z
Router# reload
...