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1 Using SSD on Android

1.1 Step1: Format SSD as ext4

These steps need to be operated under the LINUX system.

For the convenience of operation, please switch to the root user with the following command on the terminal:

Su -

The default password for the root user is fa.

1.1.1 Detection of SSD
root@FriendlyELEC:~# cat /proc/partitions 
major minor  #blocks  name
   1        0       4096 ram0
 259        0  125034840 nvme0n1

If there is a nvme0n1 device node it means an SSD is recognized.

1.1.2 Partition of SSD

To mount an SSD under Linux we re-partition it as one section by running the following command:

(echo o; echo n; echo p; echo 1; echo ""; echo ""; echo w; echo q) | fdisk /dev/nvme0n1

If you want to re-partition it to multiple sections you can run "fdisk /dev/nvme0n1". For more detail about this command refer to the fdisk's manual.

1.1.3 Format partition to EXT4

After an SSD is successfully partitioned you can check its partitions by running "cat /proc/partitions". The /dev/nvme0n1p1 partition is used to store data:

root@FriendlyELEC:~# cat /proc/partitions
major minor  #blocks  name
 
   1        0       4096 ram0
 259        0  125034840 nvme0n1
 259        2  125033816 nvme0n1p1


The following command formats a section to ext4:

mkfs.ext4 /dev/nvme0n1p1 -L SSD

1.2 Step2: Auto Mount SSD on Android System Startup

Android will automatically mount the SSD as an external storage device. No additional settings are required. Open the built-in Files application of Android and you can see that the SSD device is mounted:
Android8-files-ssd.jpg
third-party software can recognize SSDs normally.