Robert, so this would work in a pinch to modify files on the system in a pinch to get a working system back after a bad modification ?
Pretty nifty either way I think. So what about a possible g_multi, or even just g_serial for observing kernel log on boot ? Maybe even some late u-boot messages, so perhaps a serial debug cable would not be needed to troubleshoot some issues ? Just a thought . . . On Wed, Dec 31, 2014 at 6:28 AM, Chris Morgan <chmor...@gmail.com> wrote: > On Tue, Dec 30, 2014 at 9:45 PM, Robert Nelson <robertcnel...@gmail.com> > wrote: > > On the advice of Tom Rini, > > > > I'm making 'another' small change to the default u-boot. > > > > For awhile now, in u-boot we defaulted to a usb-eth gadget on the slave > port. > > > > I'm switching that to the UMS or USB Mass Storage function.. > > > > What this means: > > > > From u-boot prompt: > > > > Hit any key to stop autoboot: 0 > > U-Boot# ums 0 mmc 1 > > UMS: disk start sector: 0x0, count: 0x394000 > > > > a new flash drive will show up on your linux/win machine... > > > > and you can flash the eMMC over the usb connection: > > > > voodoo@zeus:/opt/images/bb.org$ time sudo dd > > if=./bone-debian-7.7-console-armhf-2014-12-19-2gb.img of=/dev/sdc > > [sudo] password for voodoo: > > 3481600+0 records in > > 3481600+0 records out > > 1782579200 bytes (1.8 GB) copied, 3814.3 s, 467 kB/s > > > > real 63m36.405s > > user 0m4.488s > > sys 0m50.800s > > > > It is 10x slow, but on reset: > > > > > > ********************************************************************** > > U-Boot SPL 2015.01-rc3-00015-g84a5d7d (Dec 12 2014 - 16:04:56) > > > > U-Boot 2015.01-rc3-00015-g84a5d7d (Dec 12 2014 - 16:04:56), Build: > > jenkins-github_Bootloader-Builder-79 > > > > Watchdog enabled > > I2C: ready > > DRAM: 512 MiB > > MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1 > > Using default environment > > > > Net: <ethaddr> not set. Validating first E-fuse MAC > > cpsw, usb_ether > > ********************************************************************** > > > > That's pretty cool. ;) And should be useful for users with no > > secondary microSD cards'... > > > > 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 beagleboard+unsubscr...@googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. > > > > That is pretty cool. > > Ouch on the transfer time: > > > real 63m36.405s > > > 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 beagleboard+unsubscr...@googlegroups.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. For more options, visit https://groups.google.com/d/optout.
