Any information you're willing to share as to how you load files via serial would be awesome. Personally, I love reading about this sort of thing . ..
On Wed, Jan 8, 2014 at 11:22 AM, <[email protected]> wrote: > Thanks, and I'd seen that article, but you're right--I'm doing something > different. I have a BBB-based development board, and I'm writing a script > that loads a full distribution onto it starting from a blank slate--i.e., > nothing in the eMMC, no SD card. Most of it is working. > > I think Jack is right--it's a network driver issue. When I revert to the > stock u-boot v2013.10, the tftp works better. > > On Wednesday, January 8, 2014 9:59:29 AM UTC-8, William Hermans wrote: >> >> http://www.embeddedhobbyist.com/debian-tips/beaglebone- >> black/beaglebone-black-network-boot/ >> >> The above link is an article I wrote in the subject of network booting. >> uboot, MLO, and uEnv.txt are on an SD card, but the kernel, and device tree >> overlay is pulled in via TFTP, finally rootfs over NFS. >> >> This works fine, and might be a little slow, but nothing like what you're >> explaining in your post. I am just using the standard package that comes >> with Debian wheezy stable, and I have never experienced these problems >> you're mentioning here. >> >> >> >> >> On Wed, Jan 8, 2014 at 9:51 AM, Jack Mitchell >> <[email protected]>wrote: >> >>> On 08/01/14 16:47, [email protected] wrote: >>> > I have a setup that loads u-boot onto the BBB over the serial port, and >>> > then tells u-boot to load the .dtb and kernel from a local TFTP server. >>> > Loading the small .dtb file works perfectly (although slowly), and >>> > succeeds. Loading the kernel takes too long, causes lots of retries, >>> and >>> > finally errors out. If I manually get the kernel from that same TFTP >>> > server onto my laptop, it loads in about 11 seconds--over wifi--so the >>> > server is working fine. It's just u-boot's TFTP client that seems to be >>> > causing the errors. I have seen other messages around the net advising >>> > changing the server's block size to 1468, which I did, and telling >>> > u-boot to turn dcache off, which isn't an option anymore, but it still >>> > fails. >>> > >>> > Has anyone actually got this working? Which tftp server are you using, >>> > and what parameters? Is there a patch to u-boot that might fix its >>> client? >>> > >>> > -- >>> > 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/groups/opt_out. >>> >>> Which version of u-boot are you using? Could it not also be the ethernet >>> drivers? I would try updating to the latest u-boot version and see if >>> you're still having issues. >>> >>> Cheers, >>> >>> -- >>> Jack Mitchell ([email protected]) >>> Embedded Systems Engineer >>> Cambridgeshire, UK >>> http://www.embed.me.uk >>> -- >>> >>> -- >>> 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/groups/opt_out. >>> >> >> -- > 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/groups/opt_out. > -- 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/groups/opt_out.
