**** BEGIN LOGGING AT Sun Dec 02 03:00:01 2018 Dec 02 18:13:09 seems like using the serial debug J1 for case where cant boot from 8gb card is no use. nothing in trace. yet same image from 4gb boots fine, lots of trace of course. electronic issue ? Dec 02 18:16:48 what do you get in terms of output on the serial console if you insert that "8GB" card, hold down S2 and plug in power? Dec 02 18:17:15 it looks lie a single binary char comes out Dec 02 18:17:21 C? Dec 02 18:17:50  Dec 02 18:18:20 im using minicom wonder if there a hex option to see if it makes sense Dec 02 18:19:17 if you boot from eMMC, are you able to insert the card and read it? Dec 02 18:24:30 the eMMC boot fails without a sd card. if i insert that 8gb card, then it looks for it during boot process, it then boots fine. its just holding the boot button cause issues. i'd also like to fix the eMMC image so i an boot without sd Dec 02 18:24:46 can Dec 02 18:26:47 the easiest way is to reflash eMMC with the desired latest image Dec 02 18:31:48 tbr: so just install the latest flashing image, boot up with the sd card inserted and do not press the boot button. this should do it ? Dec 02 18:32:06 install the flash image to sd Dec 02 18:32:25 the 9.5 images need you to edit one line Dec 02 18:33:31 https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#Debian_9_.28Stretch.29_-_Weekly - this lists flasher images that don't need modification Dec 02 18:35:39 ok thanks. i'll try tis with the 8gb sd card then Dec 02 19:32:55 EM (0x19) - end of medium is the only code coming out into my minicom. Dec 02 19:33:39 anyway i leave this issue for now, seems like hard problem to fix when there's workaround Dec 02 19:58:29 mike121: it does sound like maybe some weird kind of electrical incompatibility between the sd card and the bbb, or some sort of weird misbehaviour when accessed in the way that bootrom accesses it (which probably differs from how a typical modern os accesses the card) Dec 02 19:58:55 actually it kinda *has* to be the latter if the card works normally when accessed by linux Dec 02 20:04:37 image i flashed was this bone-debian-9.6-machinekit-armhf-2018-11-25-4gb.img.xz from link above. i booted it without pressing any boot button with the sd card in. i then power down and remove the sd card to see if it boot from eMMC. its does but image is 2014 Dec 02 20:05:08 i would have thought that image would be 2018 Dec 02 20:05:28 1. why on earth the machinekit image? 2. did you flash it or merely boot from sd card? Dec 02 20:06:40 actually the answer to 2 is pretty obvious, you didn't flash it onto eMMC Dec 02 20:06:56 i have no clue what is going on. the images from that link were for 4gb eMMC, so i've picked the wrong one Dec 02 20:07:36 i thought these were self flash, just put them onto sd card and power on Dec 02 20:08:12 if you only have 2GB of eMMC then you may want to flash the console image. the iot images used to fit too but I don't think that's true anymore Dec 02 20:08:41 unless the image is explicitly listed as "Flasher", it's not a flasher (but can be turned into one by uncommenting the appropriate line of /boot/uEnv.txt ) Dec 02 20:10:30 see https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#Flashing_eMMC Dec 02 20:11:20 that same wiki page also has a download link for the latest stretch-console image Dec 02 20:12:27 ill give that a try now thanks Dec 02 20:12:40 (the machinekit image is, as the name suggests, a special-purpose image for Machinekit. I don't really know anything about it) Dec 02 20:31:19 ok flashed the console image. i boot up with sd card inserted. i log in, go to /boot by i have no uEnv.txt Dec 02 20:32:11 did you hold down s2 while powering up the board? Dec 02 20:32:38 i mentioned my s2 is broke. if i hold that down, nothing boots Dec 02 20:32:56 but it works fine with 4gb card Dec 02 20:33:01 not the 8gb Dec 02 20:33:16 why do you keep trying the 8gb card if that's not working? Dec 02 20:34:17 i wanted to see if there's a way around it, what if i buy a new 16gb card and have same problem Dec 02 20:36:04 the problem is, if you don't boot U-boot from SD-card then it won't flash Dec 02 20:36:14 so use the 4GB card to flash your eMMC Dec 02 20:37:54 ok **** ENDING LOGGING AT Mon Dec 03 03:00:02 2018