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Linux on ARM
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This is a page about Samsung's ARTIK 5 Kit.

Availability

Boards:
ARTIK 5 at Digi-Key

Basic Requirements

Linux Kernel

This script will build the kernel, modules, device tree binaries and copy them to the deploy directory.
Download:

user@localhost:~$
git clone https://github.com/RobertCNelson/armv7_devel
cd armv7_devel/

For v4.9.x-artik-armv7 (Longterm 4.9.x):

user@localhost:~/armv7_devel$
git checkout origin/v4.9.x-artik-armv7 -b tmp

For v4.14.x-artik-armv7 (Longterm 4.14.x):

user@localhost:~/armv7_devel$
git checkout origin/v4.14.x-artik-armv7 -b tmp

For v4.15.x-artik-armv7 (Prepatch):

user@localhost:~/armv7_devel$
git checkout origin/v4.15.x-artik-armv7 -b tmp

Build:

user@localhost:~/armv7_devel$
./build_kernel.sh

Root File System

Debian 10

User

Password

debian

temppwd

root

root

Download:

user@localhost:~$
wget -c https://rcn-ee.com/rootfs/eewiki/minfs/debian-10.4-minimal-armhf-2020-05-10.tar.xz

Verify:

user@localhost:~$
sha256sum debian-10.4-minimal-armhf-2020-05-10.tar.xz
sha256sum output:
cd598e42850cbef87602bf15ee343abfbf0d8c6ba81028c741672b5f24263534  debian-10.4-minimal-armhf-2020-05-10.tar.xz

Extract:

user@localhost:~$
tar xf debian-10.4-minimal-armhf-2020-05-10.tar.xz

Ubuntu 20.04 LTS

User

Password

ubuntu

temppwd

Download:

user@localhost:~$
wget -c https://rcn-ee.com/rootfs/eewiki/minfs/ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz

Verify:

user@localhost:~$
sha256sum ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz
sha256sum output:
de0177ac9259fdbcc626ee239f4258b64070c0921dbc38c45fab6925a5becaa1  ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz

Extract:

user@localhost:~$
tar xf ubuntu-20.04-minimal-armhf-2020-05-10.tar.xz

Setup microSD card

We need to access the External Drive to be utilized by the target device. Run lsblk to help figure out what linux device has been reserved for your External Drive.

Example: for DISK=/dev/sdX
lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 465.8G  0 disk
├─sda1   8:1    0   512M  0 part /boot/efi
└─sda2   8:2    0 465.3G  0 part /                <- Development Machine Root Partition
sdb      8:16   1   962M  0 disk                  <- microSD/USB Storage Device
└─sdb1   8:17   1   961M  0 part                  <- microSD/USB Storage Partition
Thus you would use:
export DISK=/dev/sdb
Example: for DISK=/dev/mmcblkX
lsblk
NAME      MAJ:MIN   RM   SIZE RO TYPE MOUNTPOINT
sda         8:0      0 465.8G  0 disk
├─sda1      8:1      0   512M  0 part /boot/efi
└─sda2      8:2      0 465.3G  0 part /                <- Development Machine Root Partition
mmcblk0     179:0    0   962M  0 disk                  <- microSD/USB Storage Device
└─mmcblk0p1 179:1    0   961M  0 part                  <- microSD/USB Storage Partition
Thus you would use:
export DISK=/dev/mmcblk0

Erase partition table/labels on microSD card:

sudo dd if=/dev/zero of=${DISK} bs=1M count=100

Install Bootloader:

user@localhost:~$
wget -c https://rcn-ee.com/repos/git/build-artik/prebuilt/artik5/bl1.bin
sudo dd if=./bl1.bin of=${DISK} seek=1 bs=512
wget -c https://rcn-ee.com/repos/git/build-artik/prebuilt/artik5/bl2.bin
sudo dd if=./bl2.bin of=${DISK} seek=31 bs=512
wget -c https://rcn-ee.com/repos/bootloader/artik5/u-boot-artik5-v2012.07-r3.bin
sudo dd if=./u-boot-artik5-v2012.07-r3.bin of=${DISK} seek=63 bs=512
wget -c https://rcn-ee.com/repos/git/build-artik/prebuilt/artik5/tzsw.bin
sudo dd if=./tzsw.bin of=${DISK} seek=719 bs=512

Create Partition Layout:
With util-linux v2.26, sfdisk was rewritten and is now based on libfdisk.

Check the version of sfdisk installed on your pc
sudo sfdisk --version
Example Output
sfdisk from util-linux 2.27.1
sfdisk >= 2.26.x
sudo sfdisk ${DISK} <<-__EOF__
1M,48M,0xE,*
,,,-
__EOF__
sfdisk <= 2.25.x
sudo sfdisk --unit M ${DISK} <<-__EOF__
1,48,0xE,*
,,,-
__EOF__

Format Partition:
With mkfs.ext4 1.43, we need to make sure metadata_csum and 64bit ext4 features are disabled.
As the version of U-Boot needed for this target CAN NOT correctly handle reading files with these newer ext4 options.

mkfs.ext4 -V
sudo mkfs.ext4 -V
mke2fs 1.43-WIP (15-Mar-2016)
        Using EXT2FS Library version 1.43-WIP
mkfs.ext4 >= 1.43
for: DISK=/dev/mmcblk0
sudo mkfs.vfat -F 16 -n BOOT ${DISK}p1
sudo mkfs.ext4 -L rootfs -O ^metadata_csum,^64bit ${DISK}p2
 
for: DISK=/dev/sdX
sudo mkfs.vfat -F 16 -n BOOT ${DISK}1
sudo mkfs.ext4 -L rootfs -O ^metadata_csum,^64bit ${DISK}2
mkfs.ext4 <= 1.42
for: DISK=/dev/mmcblkX
sudo mkfs.vfat -F 16 -n BOOT ${DISK}p1
sudo mkfs.ext4 -L rootfs ${DISK}p2
 
for: DISK=/dev/sdX
sudo mkfs.vfat -F 16 -n BOOT ${DISK}1
sudo mkfs.ext4 -L rootfs ${DISK}2

Mount Partition:
On most systems these partitions may be auto-mounted...

sudo mkdir -p /media/boot/
sudo mkdir -p /media/rootfs/
 
for: DISK=/dev/mmcblkX
sudo mount ${DISK}p1 /media/boot/
sudo mount ${DISK}p2 /media/rootfs/
 
for: DISK=/dev/sdX
sudo mount ${DISK}1 /media/boot/
sudo mount ${DISK}2 /media/rootfs/

uEnv.txt script
Not used yet...

sudo touch /media/boot/uEnv.txt

Install Kernel and Root File System

To help new users, since the kernel version can change on a daily basis. The kernel building scripts listed on this page will now give you a hint of what kernel version was built.

-----------------------------
Script Complete
eewiki.net: [user@localhost:~$ export kernel_version=5.X.Y-Z]
-----------------------------

Copy and paste that "export kernel_version=5.X.Y-Z" exactly as shown in your own build/desktop environment and hit enter to create an environment variable to be used later.

export kernel_version=5.X.Y-Z

Copy Root File System

user@localhost:~$
sudo tar xfvp ./*-*-*-armhf-*/armhf-rootfs-*.tar -C /media/rootfs/
sync
sudo chown root:root /media/rootfs/
sudo chmod 755 /media/rootfs/

Copy Kernel Image

Kernel Image:

user@localhost:~$
sudo cp -v ./armv7_devel/deploy/${kernel_version}.zImage /media/boot/zImage

Copy Kernel Device Tree Binaries

user@localhost:~$
sudo mkdir -p /media/boot/dtbs/
sudo tar xfvo ./armv7_devel/deploy/${kernel_version}-dtbs.tar.gz -C /media/boot/dtbs/

Copy Kernel Modules

user@localhost:~$
sudo tar xfv ./armv7_devel/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/

File Systems Table (/etc/fstab)

user@localhost:~/$
sudo sh -c "echo '/dev/mmcblk1p2  /  auto  errors=remount-ro  0  1' >> /media/rootfs/etc/fstab"
sudo sh -c "echo '/dev/mmcblk1p1  /boot/uboot  auto  defaults  0  2' >> /media/rootfs/etc/fstab"

Remove microSD/SD card

sync
sudo umount /media/boot
sudo umount /media/rootfs

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