Tuesday, May 24, 2016

IOS Recovery via XMODEM / ws-c2960G-48L

Cisco IOS Recovery via XMODEM / ws-c2960G-48TC-L
ICND2 - CCNA Preparations


When refurbishsing 2010 Cisco Catalyst WS-C2960G with new IOS and fan, after reload i get memory allocation error and stayed in Switch rommon.

Access:
- via console Serial-to-RJ45 only
- just few commands working
- image corrupted on flash:

Switch :

during IOS update one of the switches stayed down


















sudo apt-get install lrzsz screen
sudo screen /dev/ttyUSB0 9600

dir
dir flash:
set
set BAUD 115200

Ctrl+C

sudo screen /dev/ttyUSB0 115200

copy xmodem: flash:c2960-lanbasek9-mz.122-55.SE10.bin

Ctrl + A
:
exec !! sx /cesta_k_bin-file/c2960-lanbasek9-mz.122-55.SE10.bin

...and IOS image was there OK ;)

So i enabled routing with commands below:
sdm prefer lanbase-routing
ip routing

and L3 switch is working good





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