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I've got a device that is using the brilliant LINK2SD to expand the system memory onto the SD......all good.

As part of the implementation, the app mounts the two SD card partitions as:

  1. FAT32 /mnt/extsd/179_49

and

  1. EXT4 /mnt/extsd/179_50

Of course a regular FAT32 SD card mounts as /mnt/extsd so the problem then presents itself with some apps that are hard coded to look for /mnt/extsd for SD storage.....apps like Camera fail with errors similar to can't find SD card etc.

My question is how can I mount/trick the system to mount the FAT32 partition /mnt/extsd/179_49 as /mnt/extsd ???

I've got root access, terminal etc.

Any ideas folk ?

Cheers

David

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  • What Android Version is your device? Mention it in the question, because if it's JellyBean or below, you can do that by simply editing the vold.fstab, or for KitKat and above, I'm afraid you'll need to edit the ramdisk in boot.img
    – Gokul NC
    Oct 2, 2016 at 8:24

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/mnt/extsd/179_49 
/mnt/extsd/179_50
/mnt/extsd

some type of round-robin.

Your going to have to move your data in '49 & '50 to someother directories. mkdir /sdcard/externalData

rmdir '49
rmdir '50
rmdir extsd

cd mnt
ln -s /sdcard/externalData extsd

cd extsd
ln -s /sdcard/new49 179_49 

ln -s /sdcard/new50 179_50

Whether this will work will depends on the capabilities of ln. This would work in normal unix / linux boxes.

R

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  • It's not that easy in Android even if we have root access.. @historystamp
    – Gokul NC
    Oct 2, 2016 at 8:16

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