you will need to insert the SD card in a live linux system. then mount the SD card and edit the uEnv.txt file and remove whatever changes you made unmount the SD card and things should work when booting from SD card
On 2/25/2018 11:03 AM, Loader wrote: > Hello all, > > I've been experimenting with the working PocketBeagle and possibly > modified the uEnv.txt file using the Cloud9 IDE terminal. Then I tried > to reboot the board with the shutdown –r now command. The board didn't > reload successfully, and after rebooting manually only the power LED > was on. > > Thinking that I could have corrupted the image, I then erased the > SD-card with the diskpart and flashed the SD-card with Etcher once > again. The image used is Debian_ _9.3_ _2018-01-28_ _4GB SD_ _IoT > <http://debian.beagleboard.org/images/bone-debian-9.3-iot-armhf-2018-01-28-4gb.img.xz>. > Again only the power LED is on, no other signs of life. The board is > also not present in the Device Manager anymore if the SD-card is on > the board. If the board is connected to the PC without the SD-card, > it's still recognized in the Device Manager. > > The SD card is fine, because it's recognized as a Linux filesystem > partition, and later I've also flashed the image to a new clean SD-card. > > If this is of any help, the uEnv.txt after reflashing contains the > following lines (apart from the commented ones): > uname_r=4.9.78-ti-r94 > enable_uboot_overlays=1 > enable_uboot_cape_universal=1 > cmdline=coherent_pool=1M net.ifnames=0 quiet > > How can the board be revived? Thanks > -- > 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 beagleboard+unsubscr...@googlegroups.com > <mailto:beagleboard+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/91366b8d-639d-426b-a5af-d2419916b79e%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/91366b8d-639d-426b-a5af-d2419916b79e%40googlegroups.com?utm_medium=email&utm_source=footer>. > For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/2e293048-bea4-c9a6-4e2d-c0fb63e40615%40gmail.com. For more options, visit https://groups.google.com/d/optout.
