Mount ext4-image from sd-card

[RoseDeSable]

Hi,
the filesystem on the extended storage is from type fat, but I need there an ext4. So I want to create a writable ext4-image there. I mean, that I want to create a file, that simulate inside an ext4-filesystem. Can termux mount it as ext4 ?

[twaik]

You can use busybox's mount applet or mount tool from mount-utils package. Both require root in order to work.

[RoseDeSable]

Ok,
I want to try it. I use a Samsung tablet Galaxy A8 with the android version 13 (One UI Core 5.1.1). I will show, if I can commands with root-rights. My experience in root-things isn't good under this device type.

[twaik]

It does not matter what device or Android version you have. Both busybox and mount-utils have the same behaviour on all linux distros.

[RoseDeSable]

Hi,
my android has no root rights. Therefore termux cannot inherit them. I installed the tool fakeroot in termux. But mounting the image isn't possible, because no loop device is active (/dev/loopx). What can I do now ?

[agnostic-apollo]

There is no other way than rooting the device for real. fakeroot will not work.

[RoseDeSable]

Ohh,
thank you for the discussion, although the result isn't satisfactorily. It is dangerous to try to root a Samsung device by special root images. The security design of the tablet is built in the manner, that a special electronic circuit of the hardware will be burnt. Only Samung itself can repair it.
How can I close the discussion ?

Best Regards
Rose

[agnostic-apollo]

mpartel/bindfs#124 (comment)