Dear "Giuseppe Modugno",
In message 495A0CE8.31716.C0772D@g.modugno.elettronika.it you wrote:
then you can just read the sector(s) containing the environment from their corresponding /dev/mtd* devices in Linux and copy it to the other system.
So you're proposing to use Linux to copy U-Boot environment. But on a new board (picked from the shelf) I don't have Linux and I should set some U-Boot variables to run it.
It is difficult to make recommendations when you're providing inconsistent input. In your previous message you wrote:
I have a board running U-Boot/Linux. U-Boot program, two U-Boot environments, Linux kernel and root filesystem for Linux are stored in a NOR Flash.
Now you claim "I don't have Linux".
Can you please decide whether or not you have Linux running on that board?
Another possibility is to printenv on the source board, copy the text result from the terminal into a text file, append "setenv " at the top of each lines, substitute = character with space, insert the quotes where needed and paste the result in the terminal of the destination board.
You could (and probaly should) put the constant part of your definitions into the default environment, and use a script image for the rest.
Best regards,
Wolfgang Denk