how to delete corrupted ios image in bootflash via ROMon mode

[Vignesh M]

I tried upgrading CISCO 4507R switch Image. Because of corrupted image, the IOS is not booting. Now I want to delete the existing corrupted image and need to push the correct IOS image via xmodem as other options(usb , mgt) didnt helped. Please tell me, how to delete the corrupted ios image which exists in flash memory via ROMon mode.

Switch Model: 4507R

Sup: 6E

Note: delete command is not showing in this ROMon while I tyoe help. 

[Madhukrishnan Gopinathan Nair]

I think delete should have been there. By the way, why you want to delete it? Check the space of the flash and I hope it has enough free to hold another one. If so please load another one and boot that image.

If none works, try getting a flash card and use that.

Hope this helps.

Thanks,

Madhu

[Vignesh M]

Hi, 

I dont have enough memory in flash memory as the existing corrupted imaged occupied most of the space. 

While doing Xmodem transfer, will it overwrite the existing corrupted image?

[Charles Hill]

Another option is to boot from a tftp server from within ROMMON mode.

http://www.cisco.com/c/en/us/support/docs/switches/catalyst-4000-series-switches/17052-26.html#cat4k_rec

This will get you back up and running, then you can copy the ios to flash without being in rommon mode.

Hope this helps.

Please rate helpful posts.

Thanks.

[Vignesh M]

TFTP via Management port is not working correctly. Please suggest. I have done the following things.

Given IP to laptop: 10.0.0.1/8

default gateway for laptop: 10.0.0.2(switch IP)

IP given to switch via rommon: 10.0.0.2/8

deault gateway for switch : 10.0.0.1(laptop IP)

TFTP IP: 10.0.0.1(laptop IP, as the TFTP server is running in the laptop)

Now If I boot the switch via TFTP server, it is getting failed.

[Charles Hill]

Can you ping the switch from your laptop?