On Mon, Oct 11, 2021 at 06:53:58PM -0700, Trent Piepho wrote: > When updating the FCB, save the location and size of the Barebox images > into parameters on the NAND device. Since the location and padding is > calculated based on net NAND partition size, with an unknown number of > bad blocks, these values aren't known beforehard. Saving them will > allow extracting or checksumming the Barebox image in NAND. > > For example: > sha256sum /dev/nand0.barebox ${nand0.barebox.firmware1_addr}+${nand0.barebox.firmware1_size} > memcpy -s /dev/nand0.barebox -d /mnt/mmc0.0/imagedump ${nand0.barebox.firmware2_addr} 0 ${nand0.barebox.firmware2_size} As you are adding a fcb utility command anyway in the next patch, maybe it would be more convenient for the user to add a firmware extraction option there instead of adding these device parameters. Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox