1

I am trying to upgrade my 3COM switch firmware. I am following the instructions on these links:

http://alextakacs.blogspot.com/2011/06/upgrading-firmware-on-3com-4500-switch.html http://mymcp.blogspot.com/2010/02/upgrading-firmware-on-3com-4500-switch.html

However I am getting en error executing the tftp command

<4500>tftp 192.168.0.41 put flash:/3comoscfg.cfg

The error I get is this:

File will be transferred in binary mode.
Sending file to remote tftp server. Please wait... 
Can't find source file .

And the output of dir command:

<4500>dir
Directory of unit1>flash:/

   1       -rw-      5195  Feb 04 2007 13:21:21   3comoscfg.def
   2 (*)   -rw-   4228223  Apr 02 2000 00:18:31   s3n03_03_02s168p19.app
   3       -rw-    195022  Apr 02 2000 00:19:06   s3o04_06.btm
   4       -rw-    995524  Apr 02 2000 00:19:40   s3p04_04.web
   5 (*)   -rw-      4815  Apr 02 2000 04:37:25   3comoscfg.cfg

Why am I getting this error?

Alptugay
  • 211
  • 3
  • 8

2 Answers2

2

The error was on my TFTP server. I changed the following line on my /etc/xinetd.d/tftp file:

server_args = -s /var/tftpboot/

to this:

server_args = -c -s /var/tftpboot/

And the problem is solved. The missing -c option allows new files to be created on the TFTP server.

Falcon Momot
  • 24,975
  • 13
  • 61
  • 92
Alptugay
  • 211
  • 3
  • 8
1

You should be able to specify merely 

tftp 192.168.0.41 put 3comoscfg.cfg

It's possible that the command parser is choking on the :/ or is not expecting an absolute path. Your command line is otherwise the same as the example given in the documentation I have on a random 3com managed switch, for what it's worth.

You could also try specifying a destination filename as the last argument:

tftp 192.168.0.41 put 3comoscfg.cfg someswitch-backup.cfg

If that works and the first one doesn't, it seems like a bug, but it's possible.

Falcon Momot
  • 24,975
  • 13
  • 61
  • 92