Make a custom littlefs2 image

$ sudo apt install git
$ git submodule update --init --recursive
$ make

usage: mklfs2 -c <pack-dir> -b <block-size> -r <read-size> -p <prog-size> -l <lookahead> -s <filesystem-size> -i <image-file-path>

• pack-dir: Make this directory the root directory of littlefs2.
• block-size: Size of an erasable block, generally 4096.
• read-size: Minimum size of a block read.
• prog-size: Minimum size of a block program.
• lookahead: Size of the lookahead buffer in bytes.
• filesystem-size: Size of the littlefs2 image.
• image-file-path: The output path of the littlefs2 mirror.

./mklfs2 -c files -b 4096 -r 32 -p 32 -l 32 -s 0x600000 -i rootfs.bin