On 30 Dec 2008 at 12:40, Alessandro Rubini wrote:
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.
So you might prefer setting them as predefined in you configuration file, so when the u-boot binary finds no environment on flash (crc error) and it will use those values, until you saveenv new values.
I don't like to change U-Boot default configuration. The U-Boot environment changes project by project. I want to avoid recompiling U- Boot for each project. I'd like to have a single U-Boot application and different environment saved as files.
I was thinking of a "U-Boot only" procedure, like md.b (to run on the source board) and cp.b (to run on the destination board).
You can unprotect, erase, and cp.b to the flash sector(s), once you have the binary image of the environment. You can extract such image from /dev/mtd in the running board and then use tftp (as you suggested) on the new board.
Yes, I think that is my way. Thank you all.
Best regards, Giuseppe Modugno