Hi I am new to the BB AI. I have been facing some issues with the SD-card boot. The board boots just fine off of the eMMC. However, I would like to boot it from the SD card. I have used a number of images from the BB images page, written them into the SD card with Balena etcher, no use - the board always boots off of the eMMC.
I then tried formatting the card with FAT32 , allocation unit size 4096, and then checked if I could at least mount it from the eMMC booted system. The SD card is never recognized and there is no entry in /dev for this device. I tried using dtc on the am5729-beagleboardai.dtb to generate the dts, followed the post at: https://www.element14.com/community/thread/74281/l/beaglebone-ai-booting-from-sd-card-issue specifically, I did this: "*converted the am5729-beagleboneai.dtb to xx.dts using "dtc". Then, I found out mmc1 node (mmc@4809c000), and modify some places as follows:* *1. compatible = "ti,dra7-sdhci"; >>>>> compatible = "ti,dra7-sdhci", "ti,omap4-hsmmc";* *2. add: vmmc_aux-supply = <0xd0>; (same node with vqmmc-supply)* *3. max-frequency = <0xb71b000>; >>>>> max-frequency = <0x16e3600>; (to lower the frequency of mmc)* *Save and exit, then convert the .dts file to am5729-beagleboneai.dtb, replace the old one.* " (copied the steps from the above site) This does not work either. I dont have a serial interface for the board just yet so I dont have the serial output. I would appreciate any input or help. I am not sure what I should do to get this board booting off of the SD card. Thank you and Best regards! -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/6b3311a3-c320-4053-97d4-bfeeeb01573dn%40googlegroups.com.
