how to boot cisco switch from Rommon using tftp?

I have a cisco switch with a bad IOS image, it would only boot to rommon.  I formatted the flash and tried using xmodem to copy the new image to flash.  After a couple failures, I realized that the ONLY images that Cisco offers for this device only are TOO BIG for the flash for some reason?

Is there a way to boot the image from a tftp server while in Rommon mode? I have typed in the following:

set TFTP_FILE c2900xl-c3h2s-mz.120-5.WC17.bin

I then type boot and it always says boot process failed.

Is it possible to boot the image from Rommon via TFTP, if so what am I doing wrong?

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JebutterConnect With a Mentor Author Commented:
The size of the 12.x images is larger than the flash itself.  After searching around on Cisco's website I eventually found the orginal code that was on the switch (11.x) and it fits on the flash, so I was able to xmodem it to flash.
lol :)

May want to see if the flash is holding any of the SDM components and remove them to make room...
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