Datasheet

7
Using the Flash Disk
OL-6452-04
Information About Flash Disk OIR
System(config)# config-register 0x102
The result of this configuration file entry is that the configuration register is set to hexadecimal
0x102. Please see the Cisco 7200 VXR Installation and Configuration Guide (Chapter 4, “Observing
System Startup and Performing a Basic Configuration”) at
http://www.cisco.com/univercd/cc/td/doc/product/core/7200vx/72vxicg/configvx.htm for more
information about the configuration register.
Sample Upgrade Process
This section applies to users who want to use Flash Disks for simple file storage.
Step 1 Format your onboard Flash memory—called boot flash memory. (See the format command description
in the “Software Command Overview” section on page 16.)
Step 2 Upgrade your onboard Flash memory by copying the Cisco IOS Release 12.x boot image (such as
c7200-boot-mz) into onboard Flash memory. (See the “Using the copy Command” section on page 21.)
Step 3 Copy the Release 12.x software image from onboard Flash memory to the linear Flash memory card in
your system processor’s PC Card slot. (See the “Using the copy Command” section on page 21.)
Step 4 Change the boot variables in your configuration file to point to the new Cisco IOS image in your linear
Flash memory card. (See the preceding section, “Boot Environment Variables,” and the “Making a Flash
Disk-Based Software Image the Bootable Software Image” section on page 25.)
Step 5 Reboot your system to load the Release 12.x software image from the linear Flash memory card in your
system processor.
Step 6 Insert a Flash Disk. (See the “Installing a Flash Disk” section on page 10.)
Step 7 With your system running Cisco IOS release 12.x, format the blank Flash Disk. (See the format
command description in Table 5 on page 17, and the “Using the format Command” section on page 20.)
You should now be able to store configuration files and Cisco IOS software images on your Flash Disk.
If you have an NPE-300-based system (or a later processor), you should now be able to boot from any
Cisco IOS software images you store on your Flash Disk.
Note To boot from Cisco IOS software images stored on a Flash Disk in an NPE-300-based system (or a later
processor), you must first copy the appropriate Cisco IOS software image to the Flash Disk. (See the
“Using the copy Command” section on page 21, the “Enabling Booting from a Flash Disk” section on
page 24, and the “Making a Flash Disk-Based Software Image the Bootable Software Image” section on
page 25.)
Information About Flash Disk OIR
Online insertion and removal (OIR) is possible with Flash Disks. However, it is best to avoid certain
situations when removing a Flash Disk could lead to corrupting the Flash Disk or to a circumstance
where no image is available for the router to boot from. Use this information to help decide when to
insert or remove a Flash Disk: