External SD Card not writable

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1

Hi
I’m currently evaluating Xibo for Android on a Cubieboard2 running Android 4.2.2.
Now I’m struggling with storage options, I do have an external SD Card mounted on /mnt/extsd (and an internal on /mnt/sdcard), but in the “Storage Options” menu only “Internal Storage” is shown.

First I got a few messages saying that the vold file cannot be parsed, I fixed that by replacing tabs with spaces.
Now I am getting messages that /mnt/extsd is not writeable (same for /mnt/secure/asec).
logcat is showing errors like “could not find method android.os.statfs.getavailablebytes”

Any hint, fix or workaround?

Regards,
Lukas

2

while looking at other posts I got a hint: https://springsignage.freshdesk.com/support/solutions/articles/3000017242-banana-pi-and-external-sd-cards

/etc/vold.fstab:
…
dev_mount sdcard /mnt/sdcard auto /devices/virtual/block/nandk /devices/platform/sunxi-mmc.2/mmc_host
dev_mount extsd /mnt/extsd auto /devices/platform/sunxi-mmc.1/mmc_host /devices/platform/sunxi-mmc.0/mmc_host
…
commenting out the original sdcard /mnt/sdcard
and mounting sunxi-mmc.1/0 onto sdcard (/mnt/sdcard) does the trick

3

Glad you found a solution, and thanks for mentioning tabs and spaces - we’ve had trouble with the vold file parsing on some devices and have suspected it was tabs… Now we can confirm and build in logic to handle that.

Cheers,
Dan