External SD Card not exposed in GNURoot

[techrules80]

With ChromeOS 61 we now have access to the SD Card from Android apps. Which is HUGE. But GNURoot does NOT have the removable SD Card available.

Did some searching and could not find anything obvious. Does anyone know what config change is needed in GNURoot to access the external SD Card?

Playing around I see that with the CB in dev mode I can see the external SD Card is called /dev/mmcblkp1 on the ChromeOS side of things.

When I run an Android app I can see the external SD Card and access the files. Used a random file manager app off of the Play store to test. I was going to play around and see if I could figure it out but thought it would easier to just ask?

With ChromeOS we can NOT move Android apps to an external SD Card. But hope so eventually. So this solution will not work.

There is several levels of indirection. We have the device in ChromeOS that must be mapped to the container running on ChromeOS and then Android in the container and then ultimately a /dev in GNURoot to use for a mount?

Any help greatly appreciated.