On Tue, Oct 29, 2019 at 6:05 AM Michael B <[email protected]> wrote: > > Great questions. Thanks so much for helping here. :) > > --- > TL:DR: > - I cannot read or write to the SD card on my computer after transferring the > image to the SD card. It's in a format the computer does not like (osx > catalina). Therefore, I do not know how to turn off the flash option in > /boot/... to stop it from trying to reflash. > - I am not having luck figuring out how to access the image in u-boot over > FTDI cable. > - I am using the current image from the download page. I have also tried > others, including the one called Flasher. I could be messing this up somehow > and under the delusion that it's working when it's not. > --- > > Longer explanation: > > I am using the images found on the Getting Started page -> Download the > latest ... > http://beagleboard.org/latest-images > > On my mac (running Catalina) I use the following command to write the image > to an sd card. > sudo gdd bs=1M if=bone-debian-9.9-lxqt-armhf-2019-08-03-4gb.img > of=/dev/rdisk2s1 status=progress > > I then eject the card place it in the BBGW and boot it. It flashes over. > > I remove the card and start the BBGW. Watching the boot through the FTDI, I > see it is trying to flash again. > > I know about the setting in /boot//uEnv.txt > > However, I cannot read the SD card on my computer once it's written the image > from the gdd process above. It gives me a warning when I plug it into my mac > that asks me if I want to initialize, ignore or eject. I have of course > tried all 3. In Disk Utility it doesn't even show up as a drive. It doesn't > show up using "df -h" and most importantly, it isn't showing as a drive where > I can edit the uEnv.txt file and rem out the flash property. > > Through the terminal I can hit space when I boot the board and go into > u-boot. I can view the environment variables but I can't figure out the > commands to even see if the /boot dir is accessible. I can't seem to find > how to enumerate the "interfaces" in u-boot. > > I am going to bring the SD card to work and see if I can read the card there. > Also, I wonder if I should go a different route (different computer) to > create the SD card to begin with. I have seen some tutorials showing the > manual formatting of the partitions, coping the image and making it bootable. > The suggested tool for the Mac has been not working for a couple of years > and the developer isn't updating it. So on my Mac, the (g)dd command is the > only way. > > I will be trying to get my hands on a Windows PC tonight and see if I have > better luck with the SD card there. > > Thanks all for the help. I know it's going to end up being one simple thing > that I am missing. At least the tinkering is fun. :)
On Startup, hold the "boot" button.. Sadly what you've done is enabled the "flasher" script from the eMMC rootfs, so on every bootup, it tries to "flash" the microSD from the eMMC.. So what you need to do, is hold the "boot" button, apply power, and let it actually boot from the microSD, then nuke the eMMC via dd, so it won't keep tring to flash the microSD on bootup.. Regards, -- Robert Nelson https://rcn-ee.com/ -- 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/CAOCHtYh96F8G7gcZEhOPn1GoxbN2yd84LMACP4OHpuPJsTVKSQ%40mail.gmail.com.
