Lets see what your uEnv.txt looks like. On Mon, May 18, 2015 at 3:54 AM, <[email protected]> wrote:
> Apologies for the late follow-up here. I’ve pretty much the same problem. > Using BR 2015.02 I get a sane looking set of outputs post build. > > u-boot spew follows. > > Both mmc 0:1 and mmc 0:2 show the expected SD card content. It just looks > like uEnv is wrong (?). > > Any help here would be much appreciated. TVMIA > > -----------------------snip---------------------------------------- > micro SD card found > mmc0 is current device > gpio: pin 54 (gpio 54) value is 1 > SD/MMC found on device 0 > reading uEnv.txt > 96 bytes read in 3 ms (31.3 KiB/s) > Loaded environment from uEnv.txt > Importing environment from mmc ... > Running uenvcmd ... > ## Error: "loadimage" not defined > reading ramdisk.gz > ** Unable to read file ramdisk.gz ** > reading /am335x-boneblack.dtb > 34004 bytes read in 9 ms (3.6 MiB/s) > Booting from ramdisk ... > Wrong Image Format for bootm command > ERROR: can't get kernel image! > gpio: pin 55 (gpio 55) value is 1 > reading /uImage > ** Unable to read file /uImage ** > U-Boot# > -----------------------snip--------------------------------------- > > From: [email protected] [mailto:[email protected]] > On Behalf Of Chris Morgan > Sent: 16 April 2015 03:09 > To: [email protected] > Subject: Re: [beagleboard] will a buildroot build for BBB work out of the > box? > > On Wednesday, April 15, 2015, Robert P. J. Day <[email protected]> > wrote: > > just a yes or no ... if i configure and build buildroot for a BBB, > will the generated artifacts simply "work" if i copy them to an > appropriately formatted SD card? > > i ask as i downloaded the current state of buildroot, did the > obligatory: > > $ make beaglebone_defconfig > $ make > > and got fairly predictable results: > > -rw-rw-r--. 1 rpjday rpjday 34004 Apr 15 10:41 am335x-boneblack.dtb > -rw-rw-r--. 1 rpjday rpjday 32858 Apr 15 10:41 am335x-bone.dtb > -rw-rw-r--. 1 rpjday rpjday 102416 Apr 15 10:07 MLO > -rw-rw-r--. 1 rpjday rpjday 3013632 Apr 15 10:41 rootfs.ext2 > -rw-rw-r--. 1 rpjday rpjday 364200 Apr 15 10:07 u-boot.img > -rw-rw-r--. 1 rpjday rpjday 96 Apr 15 10:41 uEnv.txt > -rwxrwxr-x. 1 rpjday rpjday 3600224 Apr 15 10:41 zImage > > *however*, without a chance to test this at the moment, i note that > the contents of uEnv.txt are kind of skimpy: > > bootpart=0:1 > bootdir= > uenvcmd=run loadimage;run loadramdisk;run findfdt;run loadfdt;run ramboot > > as in, no reference to the kernel image file or the dtb file, so i'm > only assuming that all of that is somehow encoded in the u-boot.img. > > i'm going to dig deeper later, but can anyone who's done this verify > that just copying those artifacts to an SD card will give me a > bootable system? thanks. > > rday > > Hello. > > I've seen your work on the yocto list. > > It looks like you have most of the parts there. I think the am335x will > use the file system and load the mlo. So yep, it looks like you can copy > the files over and the bbb should boot off of it (assuming you hold the > boot button or have zeroed out the first block of emmc). At least you > should get into uboot. Not sure what that roofs.ext2 is but that's probably > because we boot to another partition, that may work just fine. > > Chris > -- > 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. > > > -- > 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. > -- 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.
