Just a heads up, users will start to notice a mmcblk numbering change.
(specially on devices with a populated eMMC)

Due to these kernel commits:

https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=520bd7a8b4152aacfbd34eb7f7a447354b631039

https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=58821da858919f93f85c7e6823b49d439722a9e9

So, starting with v4.5.3 & v4.6.x  (v4.5-rc1 -> v4.5.2, mmc was a dice
roll..)

eMMC: mmc1 = /dev/mmcblk1
microSD: mmc0 = /dev/mmcblk0

In the past, whatever got detected "first" ended up as /dev/mmcblk0

So with microSD empty (prior to 4.5.x/4.5.3)

eMMC: mmc1 = /dev/mmcblk0

BUT now with v4.5.3+/v4.6.x+

microSD empty:
eMMC: mmc1 = /dev/mmcblk1

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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