Technical information

FTOS Release Notes for the E-Series TeraScale, FTOS Version 8.4.2.8, October 2012 | 19

2. The cache boot feature requires at least the boot code versions below. Use the commands show rpm

and

show linecard to verify that you have the proper version as shown in Figure 1-7.

This version requires the following bootcode versions to support cache boot:

• E-Series TeraScale Version 2.4.1.1 for Control Processors

• E-Series TeraScale Version 2.3.2.1 for Line cards

If you do not have the proper boot code version, the system displays a message like Message 2 when

you attempt to select a cache boot image (see Cache Boot Pre-requisites). See Upgrade the Boot Code

for instructions on upgrading boot code.

Select a Cache Boot Image

Configuring the cache boot feature is a three-step process:

1. Select a Cache Boot Image

2. Save the Running-Configuration

3. Reload the Chassis

Figure 1-8 shows an example of the cache boot selection. Figure 1-9 show the output for the

show

command.

Message 2 Boot Code Upgrade Required for Cache Boot Error

% Error: linecard 0 doesn't have cache boot aware bootCode.

Note: The cache boot feature is not enabled by default; you must copy the running configuration to the

startup configuration (using the command copy running-config startup-config) after selecting a cache boot

image in order to enable it.

Step Task Command Syntax Command Mode

1 Select the FTOS image you want to cache.

Use the keyword all to avoid any RPM/

linecard mismatches.

Select image A or B. The preserve

keyword updates the image partition that

does not have a specific image already

installed.

Use the flash: option to upgrade using an

image saved to the systems flash.

If not, specify another image (see Boot

Code Upgrade Options).

upgrade system-image all [A | B |

preserve] flash://<filename>

EXEC Privilege

2 Select Yes to continue upgrade

Upgrade cache boot image(4.7.5.427) for all cards [yes/no]: yes

Note: The upgrade can take more than 10 minutes to complete. DO NOT power off the linecards or

RPMs while the upgrade is taking place.