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New Member

Loading IOS on 3750

I have a 3750-48-ts that I need to load the .bin image file into flash. I have no image file in flash currently. I've tried two different term emulators, connected to console to load it, but neither will pass the file to my switch.

8 REPLIES
Cisco Employee

Re: Loading IOS on 3750

Hi Friend,

Are you in rommon mode? If you have an access to the switch you need to try tftp upgrade if your switch is in rommon then have you tried xmodem?

If you are in rommon have a look at this link

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_guide_chapter09186a00801cdee7.html#1099467

If switch is not in rommon then try tftp

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_guide_chapter09186a00801cdef7.html#1020606

HTH,

Ankur

*Pls rate all helpfull post

New Member

Re: Loading IOS on 3750

No access to switch. I've tried xmodem and that didn't work either. I"m using the following Cisco doc: http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_guide_chapter09186a0080502445.html#wp1099467

Cisco Employee

Re: Loading IOS on 3750

Hi Friend,

While performing xmodem what error you are getting? Can you capture everything on hyperterminal and post it here?

Regards,

Ankur

New Member

Re: Loading IOS on 3750

I get no errro. The dialog window appears that show my image to be received, but no packets/data is passed. My console settings are 9600, 8, none, 1, none.

Re: Loading IOS on 3750

you can upload using XMODEM console even if the IOS is deleted from the flash.

http://cisco.com/en/US/products/hw/switches/ps628/products_tech_note09186a0080169696.shtml

New Member

Re: Loading IOS on 3750

Thanks for the article. I get the message now on my term session: "line to large" and it stops.

Troy

New Member

Re: Loading IOS on 3750

There also is an error msg that reads: "xmodem: bad file number"

Troy

New Member

Re: Loading IOS on 3750

It's working now. I was receiving instead of sending.!!! Brain lapse.

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