On Wed, Apr 11, 2018 at 1:41 PM,  <bsdono...@gmail.com> wrote:
> I am trying to rollback the Debian image on my Beaglebone Black Rev C
> (Embest) from the image that shipped on it on the board Debian 8.3 Image
> 2016-01-24 kernel 4.1.15-ti-rt-43 to Debian 7.8 image 2015-03-01 kernel
> 3.8.13-bone70 .  I downloaded both files from
> https://beagleboard.org/latest-images.  I put the older image on an SD Card
> using Win32DiskImager.  I then install the SD card in the BBB and make the
> single change to the uEnv.txt file to remove the "#" from the final line
> #cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh to make the SD
> card a flasher image.  I power cycle the BBB and it begins to boot again of
> the SD Card. When I do this I get the following error:
> Begin: Running /scripts/init-bottom ... done.
> Starting eMMC Flasher
> -----------------------------
> Checking for Valid BBB EEPROM header
> Valid BBB EEPROM header found
> -----------------------------
> copying: [/dev/mmcblk0] -> [/dev/mmcblk1]
> lsblk:
> mmcblk0     179:0    0   7.4G  0 disk
> |-mmcblk0p1 179:1    0    96M  0 part /boot/uboot
> `-mmcblk0p2 179:2    0   3.5G  0 part /
> -----------------------------
> df -h | grep rootfs:
> rootfs          3.5G  1.8G  1.6G  54% /
> -----------------------------
> Error: [/dev/mmcblk1] does not exist
> writing to [/dev/mmcblk1] failed....
> I am powered off a 5A, 5V DC supply and I never peak above 300 mA.
> So to make sure my process is okay, I tried going from the Debian 8.3
> 2016-01-24 to the Debian 8.6 2016-11-06 4GB SD LXQT image.  This worked fine
> and the 8.6 ran on the eMMC.  I then rolled back to the 8.3 image with no
> issues.  So I think my process is okay.
> It appears to be an issue with mounting of the eMMC "drive"
> Any help or advice would be greatly appreciated.

This issue was fixed with 3.8.13-bone80, which was released on: Jun 15, 2016

It's a hardware issue, your board has eMMC 5.1 or newer eMMC...

Here are the two patches:


Doc's on how to fix it for your image:



Robert Nelson

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