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Catalyst 3750X IOS update questions

John Clarke
Level 1
Level 1

Hi

yesterday I needed to update the firmware in 2 3750X-24T so they are the same as the rest of our 3750X's we have.

 

The first went as it should have however the second failed after I issued the "reload" command.

 

When rebooting this 3750X gets as far as

Front-end Microcode IMG MGR: Preparing to program device microcode...
Front-end Microcode IMG MGR: Preparing to program device[0]...594412 bytes.
Front-end Microcode IMG MGR: Programming device 0...rrrrrrwsssssssssssssssssssps
sssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsssssssssssssssssssps
sssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsssssssssssssssssssps
sssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsssssssssssssssssssp

Then repeats "ssssssssssssssssssp"

 

Ware to from hear?

I have tried to reload the bin image into the firmware file into flash from a USB memeory stick but with no luck.

I am not sure if it is related but

After issuing the "flash_init" command, the 3750x seems to hang for a long time at

switch: flash_init
Initializing Flash...
mifs[2]: 10 files, 1 directories
mifs[2]: Total bytes     :    2097152
mifs[2]: Bytes used      :     612352
mifs[2]: Bytes available :    1484800
mifs[2]: mifs fsck took 2 seconds.
mifs[3]: 0 files, 1 directories
mifs[3]: Total bytes     :    4194304
mifs[3]: Bytes used      :       1024
mifs[3]: Bytes available :    4193280
mifs[3]: mifs fsck took 3 seconds.
mifs[4]: 5 files, 1 directories
mifs[4]: Total bytes     :     524288
mifs[4]: Bytes used      :       9216
mifs[4]: Bytes available :     515072
mifs[4]: mifs fsck took 1 seconds.
mifs[5]: 5 files, 1 directories
mifs[5]: Total bytes     :     524288
mifs[5]: Bytes used      :       9216
mifs[5]: Bytes available :     515072
mifs[5]: mifs fsck took 0 seconds.
 -- MORE --

eventually it will come back to the "switch" prompt after a few "enter' keystrokes

any help would be appreciated.

 

John

 

1 Reply 1

Ryan Curry
Level 1
Level 1

Hi John, in my experience the "sssssssssssspssssssssssssssp" is all part of the ROM upgrade process.  When you're in ROMMON mode (the "switch" prompt), try booting off your USB by using the following command: 

  • boot usbflash0:<system image file name>    (e.g. boot usbflash0:1841-advsecurityk9-mz.124-23.bin)
 
As long as your USB stick is compatible it should load the IOS from USB so that you can at least get functional.  If that doesn't work, try this process: https://mangattu.wordpress.com/2011/01/03/rommon-recovery-of-3750-x-switch/ 
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