06-19-2010 04:03 PM - edited 03-06-2019 11:39 AM
Hello,
For my CCNA training I have ordered some good old CISCO products
But one of the switches that I have received do not want to boot
I have try to google and try many things this week-end , but without success.
When I take a look in the DIR FLASH:
I can see only c2950-i6Q4l2-mz.121-20.EA1a.bin
when I take a look in the SET
I have nothing , even the MAC address is not present.
Off course I have try :
FLASH_INIT
LOAD_HELPER
but still the set stay empty.
Any help is welcome.
Thank you in advance.
Best Regards,
Didier.
Solved! Go to Solution.
06-19-2010 05:48 PM
The IOS is corrupt.
Xmodem Console Download Procedure Using ROMmon
http://www.cisco.com/en/US/customer/products/hw/routers/ps259/products_tech_note09186a008015bfac.shtml
Hope this helps. Please don't forget to rate useful post. Thanks.
06-19-2010 05:48 PM
The IOS is corrupt.
Xmodem Console Download Procedure Using ROMmon
http://www.cisco.com/en/US/customer/products/hw/routers/ps259/products_tech_note09186a008015bfac.shtml
Hope this helps. Please don't forget to rate useful post. Thanks.
06-20-2010 01:13 AM
Thank You for your prompt reply
I have deleted the IOS file and have copy one of my working switches to it , but still I have the same problem.
What I found strange is that on all my other switches , when I press SET , I can see the serial numbers and devices numbers, etc.
Can this not be the problem , that the IOS does not know if he has 12 , 24 or 48 ports ?
Do I have to key in is SET all the missing values ?
PS: Unfortunately ,I do not have the right "yet" to open your link , but I think it is the one where the explain how to recover a CATALYST 2950 with XMODEM , but this one I tried already
Thank you again for your help
Best Regards,
Didier
06-20-2010 06:07 AM
Hello,
Just in case some other ones do the same mistake like I did :
When you have this kind of problem or error and you have to use XMODEM , please be aware that you have many options to send your file.
In my case I use ZTERM on my MAC and by default the setting was on : SMART MAC BINARY
I have change it to BINARY DATA , and it works great
The reason why I was looking in this XMODEM settings , where due to that I have two SWITCHES CATALYST 2950 with the same IOS.
When I compare both binary sizes the one that was working has 3117390 , and the one that has the MAGIC NUMBER MISMATCH has 3117568.
So we can conclude that the MAGIC NUMBER MISMATCH is a kind of wrong check sum.
I hope this will be useful for the ones that have the same problem
Best Regards,
Didier.
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