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5-13

Switch Memory and Configuration

Using Primary and Secondary Flash Image Options

For example, if the switch is using an OS version of G.01.01 stored in Primary

flash, show version produces the following:

Figure 5-7. Example Showing the Identity of the Current Flash Image

Determining Whether the Flash Images Are Different Versions. If the

flash image sizes in primary and secondary are the same, then in almost every

case, the primary and secondary images are identical. This command provides

a comparison of flash image sizes, plus the boot ROM version and from which

flash image the switch booted. For example, in the following case, the images

are different versions of the OS software (flash image) and the switch is

running on the version stored in the secondary flash image:

Figure 5-8. Example Showing Different Flash Image Versions

Determining Which Flash Image Versions Are Installed. The

show ver-

sion

command displays which software version the switch is currently running

and whether that version booted from primary or secondary flash. Thus, if the

switch booted from primary flash, you will see the version number of the OS

image stored in primary flash, and if the switch booted from secondary flash,

you will see the version number of the OS version stored in secondary flash.

Thus, by using show version, then rebooting the switch from the opposite flash

image and using show version again, you can determine the version of the OS

image in both flash sources. For example:

The unequal code

size and differing

dates indicate two

different versions of

the OS software.

!Software.book Page 13 Thursday, October 10, 2002 6:10 PM

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