AFAIK That SDK isn't Debian usually it's Arago and the sdk has a wiki describing building uboot but if your looking duplicate those .org binaries. If you search this group you should find a link Probally from Robert as to how to clone and build the correct stuff. Also check his eewiki he's got detailed instructions
Sent from Yahoo Mail on Android On Tue, Aug 8, 2017 at 6:55 AM, wolfwoolf...@gmail.com<wolfwoolf...@gmail.com> wrote: Hi, I'm trying to automate the process of flashing a bootable emmc (NAND) on my beagle bone black. I've pin strapped the board to boot using bootp/dhcp - the kernel that gets loaded by the u-boot.img (that was pulled in via dhcp+tftp) uses an initramfs as the basis of writing the MLO, (a different) u-boot.img and root file system (containing zImage and uEnv.txt) to emmc/NAND. This all works and when I restart the beagle bone black it boots as I expect. Hooray for automated emmc flashing. However my problem is that I can't seem to hand roll a version the the MLO and u-boot.img that I flash to NAND. What I'm using right now are copies I found of these two files in the debian images distributed here: https://beagleboard.org/latest-images (These images tend to contain filesystems with /opt/backup/uboot/MLO and /opt/back/uboot/u-boot.img files existing). If I use these two boot loader files, and craft my /boot/uEnv.txt just so (uuid needs to be specified), then I can boot a couple of kernels/filesystems I have lying around successfully. But I can't seem to reproduce these two files (MLO and u-boot.img) for my NAND from source. I've tried these git repos: git://git.denx.de/u-boot.git git://git.ti.com/ti-u-boot/ti-u-boot.git and even the u-boot source that that ships with the SDK: ~/ti-processor-sdk-linux-am335x-evm-04.00.00.04/board-support/u-boot-2017.01+gitAUTOINC+9fd60700db-g9fd60700db/ For each of those I'm running make CROSS_COMPILE=arm-linux-gnueabihf- O=am335x_evm am335x_evm_defconfig && make CROSS_COMPILE=arm-linux-gnueabihf- O=am335x_evm And I've even tried a different config: make CROSS_COMPILE=arm-linux-gnueabihf- O=am335x_boneblack am335x_boneblack_defconfig && make CROSS_COMPILE=arm-linux-gnueabihf- O=am335x_boneblack This compilation process creates the MLO and u-boot.img files, but I can never seem to successfully boot anything if I use them regardless of which config I use. If it helps with clarity, I am trying out MLO and u-boot.img files by booting from the SD card, copying over the new versions, and then running dd if=MLO of=/dev/mmcblk1 conv=notrunc bs=128k count=1 seek=1 dd if=u-boot.img of=/dev/mmcblk1 conv=notrunc bs=384k count=2 seek=1 Note that I can always get back to the "bootable state" by writing the backup boot loader files that come with debian distro instead: (the sd card is running debian 8.7): dd if=/opt/backup/uboot/MLO of=/dev/mmcblk1 conv=notrunc bs=128k count=1 seek=1 dd if=/opt/backup/uboot/u-boot.img of=/dev/mmcblk1 conv=notrunc bs=384k count=2 seek=1 How can I build MLO and u-boot.img files in order to successfully boot a kernel and file system of my choosing on the emmc/NAND? Is there a page somewhere? Any help would be appreciated. -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/ebe257da-d203-44b8-9b0b-8ca1bc49ca09%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/884409875.2580960.1502226983565%40mail.yahoo.com. For more options, visit https://groups.google.com/d/optout.
