Flashing firmware from a Mac?

[Halsnalle]

I just bought an Asus WL-500g Premium, on which I intend to run Tomato firmware. All the tutorials I have found suggest that the easiest way to flash the firmware is to use the Asus firmware tool, which only runs on Windows, however. But there must be a way that I can flash the firmware from my Mac, right?

(Or alternatively, from Ubuntu, which I use too. I'm rather new to the Linux thing, but know how to use the terminal if instructed properly...)

[Halsnalle]

Okay, so now I've tried flashing Tomato via TFTP. I've put the router in diag mode, and it responds to pings. But when I try to put the tomato.trx file, I get the following error message in the terminal:

"tftp: tomato.trx: No such file or directory."

Any ideas what I might be doing wrong?

[iRet]

cd /path/to/folder/contains/firmware
tftp 192.168.1.1
mode binary
put firmware_file.trx

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