Dear Ottavio,
in message 20080318091131.7qkgvxmqgc8o8sok@mail.dei.unipd.it you wrote:
I'd like to use netconsole to have the possibility of upgrading the firmware store on a flash, which has u-boot as bootloader which loads and runs linux.
I plan to use tftp to transfer the new firmware images to the board, so what I'd like to know if there is any problem using netconsole and tftpd together or if it runs the same way as by using a serial port to communicate to the board.
This should work independently from each other.
Moreover, is it possible to set a password to access u-boot prompt? I would like to give the possibility of flashing the device to everybody.
U-Boot has no conectp of passwords or password management etc.
Please read doc/README.autoboot for autoboot configuration options which include support for a (very promitive!) password-like feature, but please also note that this is working with a real console port only, i. e. not with netconsole.
Best regards,
Wolfgang Denk