Are you sure you're following this steps?: 1. Insert SD Card with BBB Powered Off 2. Press and Hold USER/BOOT Button 3. Turn On Beagle Bone 4. When LEDs start flashing (may be after 3 seconds of pushing Power Button) you should be able to release Boot Button
I have been writting the downloaded images to the SD Cards using Win32DiskImager On Tuesday, August 5, 2014 12:04:17 PM UTC-5, Mario Giammarco wrote: > > 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]> >> Reply-To: "[email protected]" <[email protected]> >> Date: Friday, August 1, 2014 at 12:17 AM >> To: "[email protected]" <[email protected]> >> 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]. >> 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.
