need help in loading IOS on 3750

Unanswered Question
Jun 29th, 2010
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Hi all,


can anyone help me on what command i will execute on hyperterminal to copy the IOS from my pc to switch.

My problem is that the switch does not boot because the flash was not found.

I downloaded a flash but i dont know how to copy it from my pc to the switch using hyperterminal.

when i type this command:

switch: copy ?

this will show

usage: copy [-b <buffer_size>] <src_file> <dst_file>


what does buffer size mean and can someonegive me an example command on how to execute that command.


Please someone help me......

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Leo Laohoo Tue, 06/29/2010 - 16:55
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You can try to "download" the IOS via the console cable using XModem, particularly the switch command  "xmodem -r -s 115200".  This command means that the IOS will be loaded into the DRAM (-r switch) and the upload will be using high speed at 115200 bps (-s switch).


Xmodem Console Download Procedure Using ROMmon

http://www.cisco.com/en/US/customer/products/hw/routers/ps259/products_tech_note09186a008015bfac.shtml


Hope this helps.


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