On Fri, Oct 17, 2014 at 10:54 AM, Robert Nelson <[email protected]> wrote: > On Fri, Oct 17, 2014 at 10:51 AM, Mark A. Yoder <[email protected]> > wrote: >> I see on the recent test images[1] that u-boot and MLO are handled >> differently than before[2]. You copy u-boot.img and MLO using: >> >> dd if=MLO of=/dev/sdX count=1 seek=1 conv=notrunc bs=128k >> dd if=u-boot.img of=/dev/sdX count=2 seek=1 conv=notrunc bs=384k >> >> >> I want to try my own u-boot, but before overwriting working copy I'd like to >> back it up. Does this work? >> >> bone$ dd if=/dev/mmcblk1boot1 of=u-boot.img.bak count=2 seek=1 bs=384k >> bone$ dd if=/dev/mmcblk1boot0 of=MLO.bak count=1 seek=1 bs=128k >> >> When updating u-boot, do I also need to update MLO? >> >> Can I update a running Bone with? >> >> dd if=MLO of=/dev/mmcblk1boot0 count=1 seek=1 conv=notrunc bs=128k >> dd if=u-boot.img of=/dev/mmcblk1boot1 count=2 seek=1 conv=notrunc bs=384k > > Oh, we don't use the eMMC "boot" aka: "/dev/mmcblkXbootY" locations. I > don't think ti's bootrom on even the newest cortex parts support that > partition either...
btw, there should be backup version located here: /opt/backup/uboot/ https://github.com/RobertCNelson/omap-image-builder/blob/master/tools/setup_sdcard.sh#L997 Regards, -- Robert Nelson http://www.rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
