Information Technology Reference
In-Depth Information
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Method 2
—Use xmodem with the Modem Out-of-Band (OOB) Protocol to load the boot loader
image to the MSFC boot Flash. This procedure requires the Catalyst 6000 Supervisor (CAT OS)
image if using boot loader version c6msfc-boot-mz.120-7.XE, or the Catalyst IOS image if using
version c6msfc-boot-mz.120-7.XE1, to be running on the Supervisor module. The MSFC boot
loader image is approximately 1.8 MB and takes about 45 minutes to load.
You should use this second method only as a disaster recovery procedure, and the following caveats
apply:
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The xmodem procedure doesn't save the current switch configuration if you run the Cat OS image
on the supervisor, and you were previously running Cat IOS on the switch.
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The xmodem procedure doesn't save the downloaded image into the MSFC boot Flash.
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The xmodem procedure loads and runs the boot loader in the MFSC, and it puts it in boot mode.
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From boot mode, the MSFC boot Flash must be formatted before you copy the boot loader
image into it.
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You must place the boot loader image that you want to load in supervisor's slot 0.
The xmodem procedure has been verified to work with Microsoft Windows Hypertrm
program, and minicom under Linux.
Note
If these methods are not successful, contact the Cisco Technical Assistance Center (TAC), and request
an RMA for a new boot Flash SIMM with the desired image in it.
As it was mentioned earlier, you could use either the Cat OS or Cat IOS image. Which one
to use depends on the boot loader version that you are trying to load.
Note
If you are using version c6msfc-boot-mz.120-7.XE, you need to use Cat OS image. If you
use boot loader version c6msfc-boot-mz.120-7.XE1 or later, you may use the Cat IOS
image. Using release c6msfc-boot-mz.120-7.XE1 or later has major advantages and should
be used whenever possible. First, the switch configuration will not be lost by having to load
Cat OS in the switch; second, a few extra steps are not necessary, making the process less
time-consuming.
The major difference between the releases is the capability to access the supervisor's slot
0 from boot mode. If you load Cat IOS in the supervisor, you will not be able to access slot
0 until you get to release c6msfc-boot-mz.120-7.XE1 or later.
Method 1: Boot Loader Recovery Procedure Using a Cisco 4500/4700 Router
The MSFC in ROMMON mode is capable of reading a 4500/4700 router Flash SIMM.
However when Cat IOS is running, the MSFC cannot read a 4500/4700 flash SIMM format.
Make sure that you format the MSFC boot Flash from boot mode before the boot loader
image is put back on it. The following are the typical messages when attempting to read the
MSFC's boot Flash when running Cat IOS.
Note
