Have you tried downloading an image from beagleboard.org and writing it to an microSD card and booting from that? I recommend the etcher utility for writing the SD card. Any of the images should work.
Once you've booted the SD card you can mount the eMMC with: sudo mkdir /mnt/emmc sudo mount /dev/mmcblk1p1 /mnt/emmc And edit the uEnv.txt file in the eMMC: sudo nano /mnt/emmc/uEnv.txt If you've correctly fixed the uEnv.txt file, shutdown, remove the SD card and you should be able to boot from the eMMC again. Newer images create only a single partition, and use a "virtual MSDOS partition" and only a single partition. I prefer the new arrangement. On Wednesday, July 20, 2016 at 1:26:14 AM UTC-5, qiu.w...@gmail.com wrote: > > Hi > I got the same problem. Have you solved it? > > On Sunday, July 19, 2015 at 7:33:38 PM UTC+8, huey...@gmail.com wrote: >> >> I uncorrectly disable eMMC in my Beaglebone Black Rev. C by following >> steps: >> >> 1. Mount the FAT partition: >> >> $ mount /dev/mmcblk0p1 /mnt/card >> >> 2. Edit the uEnv.txt on the mounted partition: >> >> $ nano /mnt/card/uEnv.txt >> >> 3. Enable following line in uEnv.txt >> >> >> optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN,BB-BONE-EMMC-2G >> >> Then I can not boot again, following message show on screen: >> >> [ 0.741541] omap_hsmmc mmc.5: of_parse_phandle_with_args of >> 'reset' failed >> >> then I boot into >> >> Busybox v1.20.2 (Debian 1:1.20.0-7) built-in shell (ash) >> Enter 'help' for a list of built-in commands. >> >> /bin/sh: can't access tty; job control turned off >> (initramfs) >> >> Since there is no /dev/mmcblk0p1 now, I can not mount it and edit >> uEnv.txt again. >> >> Then how can I recovery my eMMC from this point? >> >> -- 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/f5f84f69-b54a-4246-91da-bd452d041d1a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
