Booting From Flash Memory - Cisco 12404 Installation And Configuration Manual
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Chapter 3
Installing the Cisco 12404 Internet Router
Booting from Flash Memory
OL-11636-01
Table 3-20
Squeeze Command Functions Example
Command
Example Function
e
The character e in the last line indicates that the special Flash
memory area has been erased. This erase operation must be
accomplished before any write operation so the special Flash
memory area can begin.
b
The character b indicates that the data about to be written to the
special Flash memory area has been temporarily copied.
E
The character E indicates that the sector temporarily occupied by
the data has been erased.
S
The character S indicates that the data has been written to its
permanent location in Flash memory.
Z
The character Z indicates that the log has been erased following
the successful squeeze operation.
During the squeeze operation, the system maintains a log identifying which of the
squeeze functions has been accomplished, so that the system can return to the
proper place and continue the operation in the event of a power failure.
To enable booting from Flash memory, set the boot field in the software
configuration register (bits 3 through 0) to a value between 2 and 15. These values
are used with the boot system flash device:filename configuration command,
where device is bootflash:, slot0:, or slot1:, and filename is the name of the file
from which you want to boot the system.
To enter global configuration mode (while the system is running) and specify a
Flash filename from which to boot the system, enter the configure terminal
command at the privileged EXEC mode prompt on the system console, as follows:
Filo# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Filo(config)# boot system flash device:filename
Cisco 12404 Internet Router Installation and Configuration Guide
Booting from Flash Memory
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