At the end of the uEnv.txt file., there is the following section: Ref: https://elinux.org/Beagleboard:BeagleBoneBlack_Debian
*##enable Generic eMMC Flasher:* *##make sure, these tools are installed: dosfstools rsync* *#cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh* If you have a Linux system (not a VM on Windows) or another Beaglebone, you can take the uSD card and plug it into the other Linux system and then navigate to /boot/uEnv.txt and uncomment the last line with the " #cmdline" statement. Then, plug it back into the BB and power it on. Once the LED flashing, including the cylon pattern is done they should stop blinking or turn off. Then, take the uSD card from the BB, and plug it back into the Linux and comment out the 'cmdline' and transfer back to the BB. The other option if you do not have another Linux system is to install the Flasher image on a uSD, flash the BB, and then install a non Flash image to boot the BB with. As far as working through the Dr. Molloy book, it might be best to just use an older image, say with a 4.9 (maybe 4.14) kernel and go from there. Otherwise you will run into situations where something is not going to work Also, on this page, it makes reference to a similar error that you are seeing: https://arcanesciencelab.wordpress.com/2020/01/14/the-correct-way-to-enable-spi-ports-on-the-beaglebone-black/ Note the steps: - *First disable the HDMI port on the BBB. This is done by editing the file ‘/boot/uEnv.txt’ and uncommenting the line ‘disable_uboot_overlay_video=1’* - *Reboot the BBB after uncommenting the disable HDMI line.* Perhaps having an overlay enabled is related to the issue you are seeing? Cheers, Jon On Sat, Oct 17, 2020 at 11:54 AM Szabó Benedek Ákos < [email protected]> wrote: > Hi Dennis! > > I'm an IT guy so you can imagine I didnt copy the image directly to SD > card, used Etcher. > > I dont really get it; how do u edit the uEnv.txt file to be a flasher > image? > > I flashed the eMMC flasher image to an sd card, booted the Pocketbeagle > from that sd card. It started to boot, then all four leds stayed on, system > didnt boot. > So after this, I flashed the latest (2020-08-25) image to another SD card, > booted, and the P2_06 and P2_18 pinmux file still cannot be found there. > > Dennis Bieber a következőt írta (2020. október 17., szombat, 19:41:40 > UTC+2): > >> On Sat, 17 Oct 2020 09:40:08 -0700 (PDT), in >> gmane.comp.hardware.beagleboard.user Szabó Benedek Ákos >> <[email protected]> wrote: >> >> >Tried flashing the new image, didnt boot with the eMMC flasher image. >> >> I tend to stay away from the downloaded flasher images. I prefer to use >> an SD card image, get it configured (and updated since they may be behind >> in security updates), and only after I'm happy do I edit the >> /boot/uEnv.txt >> to make it a flasher image. >> >> >Also tried the new IoT image, still the same error :( >> >> What does "didn't boot" and "same error" mean?. What did the LEDs do? >> >> HOW did you write the image to the SD card? The image files are just >> that -- complete file system images... If you just copied it to the SD >> card, it won't do anything. You have to use special tools to place the >> image contents onto the SD card. BalenaEtcher is the current favored tool >> for doing this. >> >> >> -- >> Dennis L Bieber >> >> -- > 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/fd312e72-d67f-48c4-9b27-463ae614c92an%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/fd312e72-d67f-48c4-9b27-463ae614c92an%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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/CAG99bkp%2BDNgLV5%3DCnON2QznuB90wscUujC68neArG5eF1Yo56w%40mail.gmail.com.
