How to mount ext4 formatted MicroSD card on Android 6.0? - Android Q&A, Help & Troubleshooting

Hi
my phone is lg k10 android 6.0 and rooted
for me only mounted fat32
when I formatted ext4 microsdcard and insert on phone show message "can't use sd card. tap to set up for use"
when click this message my microsdcard formatted fat32.
How to mount ext4 formatted MicroSD card on Android 6.0?
Thanks

---

So you need ext4 for symlinking purposes eh?
Anyway , if your device supports ext4 , depends on vendor , you can try to mount it manually
Root is required.
In adb ,
Code:
-adb shell
-su
-df
- cat /proc/partitions
when you know the partition for your external sd ,
Code:
mount -o bind "path to partition" /storage/sdcard1
If this works , you want to add this as a script to run at boot or create a init.d script by your own and give it 0755 permission.
Cheers
-Edit
If it didnt work , try this , it may be a little complicated
https://forum.xda-developers.com/showthread.php?t=2424900

---

akash14darshan said:
So you need ext4 for symlinking purposes eh?
Anyway , if your device supports ext4 , depends on vendor , you can try to mount it manually
Root is required.
In adb ,
Code:
-adb shell
-su
-df
- cat /proc/partitions
when you know the partition for your external sd ,
Code:
mount -o bind "path to partition" /storage/sdcard1
If this works , you want to add this as a script to run at boot or create a init.d script by your own and give it 0755 permission.
Cheers
-Edit
If it didnt work , try this , it may be a little complicated
https://forum.xda-developers.com/showthread.php?t=2424900
Click to expand...
Click to collapse
I want use exfat because for big files size 4g
but not mount exfat
I want use format exfat Instead fat32
can I or must use custom rom?

---

123xdagsm said:
I want use exfat because for big files size 4g
but not mount exfat
I want use format exfat Instead fat32
can I or must use custom rom?
Click to expand...
Click to collapse
I need you to be particular with your wordings ..
Do you need ext4 sdcard to be mounted or exfat?
PS:
For File Size larger than 4gb , you can try NTFS , It is supported natively by my device.
Try formatting sdcard as NTFS and then insert into device.
If it shows any problem or doesnt mount , try this
Code:
-su
-ntfs-3g /dev/block/mmcblk1p1 /mnt/sdcard/external_sd
-vold
If this works , try making an init.d script with the above code , to mount sdcard everytime at boot
Cheers

---

akash14darshan said:
I need you to be particular with your wordings ..
Do you need ext4 sdcard to be mounted or exfat?
PS:
For File Size larger than 4gb , you can try NTFS , It is supported natively by my device.
Try formatting sdcard as NTFS and then insert into device.
If it shows any problem or doesnt mount , try this
Code:
-su
-ntfs-3g /dev/block/mmcblk1p1 /mnt/sdcard/external_sd
-vold
If this works , try making an init.d script with the above code , to mount sdcard everytime at boot
Cheers
Click to expand...
Click to collapse
It does not matter, I just want to support big size file 4g
I format ntfs but not work and type commands show error "
sush: ntfs-3g: not found"
I format ext4 too and test. command
# mount -o bind /dev/block/mmcblk1p1 /storage/sdcard1
and make director /storage/sdcard1 but show error"
mount: Not a directory"

---

123xdagsm said:
It does not matter, I just want to support big size file 4g
I format ntfs but not work and type commands show error "
sush: ntfs-3g: not found"
I format ext4 too and test. command
# mount -o bind /dev/block/mmcblk1p1 /storage/sdcard1
and make director /storage/sdcard1 but show error"
mount: Not a directory"
Click to expand...
Click to collapse
try this
Code:
-su
-cd /storage/
-mkdir sdcard1
-cd /
-mount -o bind /dev/block/mmcblk1p1 /storage/sdcard1

---

akash14darshan said:
try this
Code:
-su
-cd /storage/
-mkdir sdcard1
-cd /
-mount -o bind /dev/block/mmcblk1p1 /storage/sdcard1
Click to expand...
Click to collapse
not work show message again
"mount: Not a directory"

---

I use terminal for commands

---

I guess due to marshmallow's strict policies , you are not being able to mount NTFS,
I will suggest you to format card as ext4 using EaseUS Partition Manager and then insert sdcard in your device.
Ext4 is natively supported by linux and I dont think it should cause you problems.
Cheers , Pressing that Thanks button wont harm you

---

I don't know lg k10 android 6.0 not support formats exfat,ntfs,ext4 for micro sdcard.
Does anyone else have a comment to fix the problem?

---

akash14darshan said:
I guess due to marshmallow's strict policies , you are not being able to mount NTFS,
I will suggest you to format card as ext4 using EaseUS Partition Manager and then insert sdcard in your device.
Ext4 is natively supported by linux and I dont think it should cause you problems.
Cheers , Pressing that Thanks button wont harm you
Click to expand...
Click to collapse
Gonna try this.
akash14darshan said:
So you need ext4 for symlinking purposes eh?
Anyway , if your device supports ext4 , depends on vendor , you can try to mount it manually
Root is required.
In adb ,
Code:
-adb shell
-su
-df
- cat /proc/partitions
when you know the partition for your external sd ,
Code:
mount -o bind "path to partition" /storage/sdcard1
If this works , you want to add this as a script to run at boot or create a init.d script by your own and give it 0755 permission.
Cheers
-Edit
If it didnt work , try this , it may be a little complicated
https://forum.xda-developers.com/showthread.php?t=2424900
Click to expand...
Click to collapse
Would you tell me how to access the adb?
Cheers