So, I have bought some samsung and kingston premium 8gb sdhc cards. I have downloaded the images and followed official documentation. I have not used eewiki documentation because I do not understand it. The boot from external sd does not work at all for me. I would like now to understand at least on which device can I read the sd card. I see a /dev/mmcblk0 but it seems it is mapped to internal emmc memory. Am I wrong? Thanks again, Mario
Il giorno venerdì 1 agosto 2014 18:50:30 UTC+2, john3909 ha scritto: > > > From: Mario Giammarco <[email protected] <javascript:>> > Reply-To: "[email protected] <javascript:>" < > [email protected] <javascript:>> > Date: Friday, August 1, 2014 at 12:17 AM > To: "[email protected] <javascript:>" <[email protected] > <javascript:>> > Subject: Re: [beagleboard] Cannot boot from microsd > > Thanks again, > but I would like to make it clear that pressing the boot button has no > effect for me. It boots always amstrong linux from emmc. > Why??? > > Because you don’t have a valid SDCard. Either there is something wrong > with the SDCard you are using (incompatible, old, faulty, etc) or you > haven’t created the SDCard correctly. These are the instructions that work > best: > > http://eewiki.net/display/linuxonarm/BeagleBone+Black > > Regards, > John > > > > Il giorno giovedì 31 luglio 2014 20:58:59 UTC+2, john3909 ha scritto: >> >> >> From: Mario Giammarco <[email protected]> >> Reply-To: "[email protected]" <[email protected]> >> Date: Thursday, July 31, 2014 at 2:01 AM >> To: "[email protected]" <[email protected]> >> Subject: Re: [beagleboard] Cannot boot from microsd >> >> Thanks for reply but how can I update u-boot on the emmc? Reading >> documentation it seems that I must boot from an sd to update emmc and so I >> cannot... >> >> When you press the boot button as you power the board the BBB will use >> u-boot from the SDCard. You can update u-boot on the eMMC by using a SDCard >> with the flash image (replaces everything on the eMMC) or you can boot with >> the SDCard, mount the eMMC boot partition and replace the u-boot with a >> simple cp command. >> >> Regards, >> John >> >> >> >> Il giorno mercoledì 30 luglio 2014 19:28:26 UTC+2, john3909 ha scritto: >>> >>> >>> From: Mario Giammarco <[email protected]> >>> Reply-To: "[email protected]" <[email protected]> >>> Date: Wednesday, July 30, 2014 at 10:02 AM >>> To: "[email protected]" <[email protected]> >>> Subject: [beagleboard] Cannot boot from microsd >>> >>> Hello, >>> I am trying to boot from microsd. >>> >>> 1) I have prepared an 8gb sdhc, tried with asterisk image and with >>> debian image from beagleboard site >>> 2) I have checked that sd contains boot images >>> 3) I have attached beagleboard power cable keeping user/boot button >>> pressed >>> >>> It boots always internal angstrom image >>> >>> What can I do? How can I debug? >>> >>> Update u-boot on the eMMC >>> >>> Regards, >>> John >>> >>> >>> >>> Thanks, >>> Mario >>> >>> -- >>> 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] <javascript:>. > 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.
