On 18 August 2015 at 16:39, Robert Nelson <[email protected]> wrote:
> There's nothing to re-flash, the am335x bootrom on the a6a supports > mmc raw mode.. It was first introduced in the dm81x/omap4x era, and we > just started using it on am335x late last year by default. (the > am335x family comes from the dm81x/omap4x line).. > > Try another microSD card or a different usb-microSD-reader... That was a good suggestion from Robert, to try other cards. My (somewhat puzzling) test results follow. All tests were carried out with the image that is in the subject line of this thread. BBW Rev. A6a ------------------- 3 X new Apacer 8 GB cards: none of the 3 cards booted, though they all seemed good otherwise, there was no error reported during flashing or by fsck. These 3 cards were purchased about 2 months ago. In my previous emails I was talking about one of these cards. 1 old Apacer 8 GB card: it booted fine. This card was purchased about 18 months ago. 3 X Kingston 4 GB cards: all 3 booted fine. These are the cards that came with 3 BBW's. 1 Samsung 2 GB card: it booted fine. The puzzling thing with the tests above is this: why does the old Apacer card boots but not the new ones? BBB Rev. B ----------------- 3 X new Apacer 8 GB cards: all booted fine. 1 Kingston 4 GB card: it booted fine. I thought that is was necessary to press the Boot button in order to boot from the SD card (instead of eMMC) but that does not seem to be the case with my BBB (which still has the original Angstrom distro in the eMMC). The puzzling thing with the tests above is this: why do the new Apacer 8 GB cards boot with BBB but not BBW? I speculate it is because the Linux kernel is being loaded from U-boot in the eMMC rather than the SD card. Any ideas? -- 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.
