CAT OS to IOS Migration

Hi,

I have a 4506 CISCO switch which is running the CAT OS can I change it as IOS.

Hi,

The Problem is resolved, Please find the below mentioned steps for the migration

Note: You will lose the configuration and you need to configure from the beginning

Issue the "copy config tftp" command on the Supervisor Engine and the "copy start tftp" command on the MSFC2 in order to back up the configurations.

Issue the Show Module and conform MSFC2 and PFC2 are runnning.

copy tftp flash

IP address of the TFTP server

File name (c6sup22-jk2sv-mz.121-26.E9.bin)

session 15

dir bootflash: check the "boot" image is avilable if not upload the same by "copy tftp bootflash:" command

set the bootloader with the command "boot bootldr bootflash:c6msfc2-boot-mz.121-11b.E4.bin"

config−register 0x2102

save the configuration

show bootvar

Go back to the SP console.

Change the configuration register setting on the SP so that the switch does not boot the CatOS image and goes
to ROMmon with the command "set boot config−register 0x0"

Reload the switch

The router goes in to the SP ROMmon

Issue the command "Set" at the ROMmon prompt in order to check the environment variables.

CISCO IOS will not use the CONFIG_FILE environment variable. So remove that by executing the following command

CONFIG_FILE=

Change the config-register value to 0x2101 by issuing the command "confreg 0x2102"

write the new environment variable setting to NVRAM. by issuing the command "sync"

Reboot the switch with the command "reset"

The Switch enters the SP ROMmon mode

Boot the Swich with the Boot command "boot bootflash:c6sup22-jk2sv-mz.121-26.E9.bin"

Format the Flash device by issuing the command "format bootflash" as the Flash devices are still formatted with the previous CatOS algorithm.

The format command will erase the config and the IOS. So again need to copy the IOS image to the flash by issuing the below mentioned command

copy tftp flash

IP address of the TFTP server

File name (c6sup22-jk2sv-mz.121-26.E9.bin)

Set the boot variable to boot the Cisco IOS Software image by issuing the command "boot system flash slot0:c6sup22−js−mz.121−19.E1a"

Save the changes.

Check the Bootvar setting and Verify if the configuration register is set to 0x2102

Reload the switch

Hi,

The Problem is resolved, Please find the below mentioned steps for the migration

Note: You will lose the configuration and you need to configure from the beginning

Issue the "copy config tftp" command on the Supervisor Engine and the "copy start tftp" command on the MSFC2 in order to back up the configurations.

Issue the Show Module and conform MSFC2 and PFC2 are runnning.

copy tftp flash

IP address of the TFTP server

File name (c6sup22-jk2sv-mz.121-26.E9.bin)

session 15

dir bootflash: check the "boot" image is avilable if not upload the same by "copy tftp bootflash:" command

set the bootloader with the command "boot bootldr bootflash:c6msfc2-boot-mz.121-11b.E4.bin"

config−register 0x2102

save the configuration

show bootvar

Go back to the SP console.

Change the configuration register setting on the SP so that the switch does not boot the CatOS image and goes
to ROMmon with the command "set boot config−register 0x0"

Reload the switch

The router goes in to the SP ROMmon

Issue the command "Set" at the ROMmon prompt in order to check the environment variables.

CISCO IOS will not use the CONFIG_FILE environment variable. So remove that by executing the following command

CONFIG_FILE=

Change the config-register value to 0x2101 by issuing the command "confreg 0x2102"

write the new environment variable setting to NVRAM. by issuing the command "sync"

Reboot the switch with the command "reset"

The Switch enters the SP ROMmon mode

Boot the Swich with the Boot command "boot bootflash:c6sup22-jk2sv-mz.121-26.E9.bin"

Format the Flash device by issuing the command "format bootflash" as the Flash devices are still formatted with the previous CatOS algorithm.

The format command will erase the config and the IOS. So again need to copy the IOS image to the flash by issuing the below mentioned command

copy tftp flash

IP address of the TFTP server

File name (c6sup22-jk2sv-mz.121-26.E9.bin)

Set the boot variable to boot the Cisco IOS Software image by issuing the command "boot system flash slot0:c6sup22−js−mz.121−19.E1a"

Save the changes.

Check the Bootvar setting and Verify if the configuration register is set to 0x2102

Reload the switch

That's taken into consideration that you are running either Supervisor Enginer II+ or higher becasue Sup I and II are only CatOS & would not allow you to upgrade to IOS.