Swap file on internal storage

[Guest CarpetDiem]

The code is below: mount -o remount,rw /data;

swapoff /dev/block/loop7;

dd if=/dev/zero of=/data/swap.img bs=1024 count=38000;

mount -o remount,rw /data;

losetup /dev/block/loop7 /data/swap.img;

mkswap /dev/block/loop7;

swapon /dev/block/loop7;