R-Car/Ubuntu

Run Ubuntu 18 on the R-Car Starter Kit
This describe the manual to run Ubuntu 18 on the R-Car Starter Kit.

What to prepare

 * HW
 * R-Car Starter Kit Pro/Premiere Don't care capacity and M3/H3. In this verification, H3 WS3.0 8GB is used.
 * microSD card Verified with 16GB/32GB.
 * Artifacts built with Yocto 4.7.0
 * Image
 * Image-r8a7795-h3ulcb-4x2g.dtb
 * core-image-minimal-h3ulcb.tar.bz2/core-image-weston-h3ulcb.tar.bz2
 * modules-h3ulcb.tgz
 * base image of the Ubuntu 18
 * ubuntu-base-18.04.5-base-arm64.tar.gz Download from http://cdimage.ubuntu.com/ubuntu-base/releases/18.04/release/
 * Linux PC Those with a microSD card slot

Hereafter, these files will be explained on the assumption that they are stored under the ~/ubu directory.

$ ls ~/ubu Image Image-r8a7795-h3ulcb-4x2g.dtb core-image-minimal-h3ulcb.tar.bz2/core-image-weston-h3ulcb-4x2g.dtb ubuntu-base-18.04.5-base-arm64.tar.gz modules-h3ulcb.tgz

Work on the Linux PC

 * construction of microSD card image
 * The inserted microSD card is explained below as /dev/sdb.
 * If something is on the microSD card, delete all partitions before working. WARNING! These steps may erase the SD card completely. All files my be lost.

1.Create partition Create two partitions. The first is 2GB and the second is the remaining capacity. $ sudo fdisk /dev/sdb Command (m for help):n Partition type p	primary (0 primary, 0 extended, 4 free) e	extended (container for logical partitions) Select (default p):p Partition number (1-4, default 1):[press Enter key] First sector (2048-30375935, default 2048):[press Enter key] Last sector, +sectors or +size{K,M,G,T,P} (2048-30375935, default 30375935): +2G Command (m for help):n Partition type p	primary (1 primary, 0 extended, 3 free) e	extended (container for logical partitions) Select (default p):p Partition number (2-4, default 2):[press Enter key] First sector (4196352-62333951, default 4196352):[press Enter key] Last sector, +sectors or +size{K,M,G,T,P} (4196352-62333951, default 62333951):[press Enter key] *When using a 16GB microSD card, press the Enter key at the time of (*). Command (m for help):w

2.Creating file systems $ sudo mkfs.ext4 /dev/sdb1 $ sudo mkfs.ext4 /dev/sdb2

3.Extract files to microSD card In the first partition, extract core-image-minimal-h3ulcb.tar.bz2/core-image-weston-h3ulcb.tar.bz2 and modules-h3ulcb.tgz. In the second partition, extract ubuntu-base-18.04.5-base-arm64.tar.gz and modules-h3ulcb.tgz. $ sudo mount /dev/sdb1 /mnt $ cd /mnt $ sudo tar -xvf ~/ubu/core-image-minimal-h3ulcb.tar.bz2(core-image-weston-h3ulcb.tar.bz2) $ sudo tar -xvf ~/ubu/modules-h3ulcb.tgz $ cd boot $ sudo rm * $ cp ~/ubu/Image ~/ubu/Image-r8a7795-h3ulcb-4x2g.dtb. $ cd ../.. $ sudo umount /mnt $ sudo mount /dev/sdb2 /mnt $ cd /mnt $ sudo tar -xvf ~/ubu/ubuntu-base-18.04.5-base-arm64.tar.gz $ sudo tar -xvf ~/ubu/modules-h3ulcb.tgz $ cd / $ sudo umount /mnt $ sync


 * The work on the Linux PC is over. remove the microSD card.

Work on the Starter Kit

 * Assuming network configuration as shown
 * Insert the microSD card created in the previous chapter into the Starter Kit and turn on the Starter Kit.

U-Boot 2020.01 (Mar 18 2021 - 06:36:02 +0000) CPU:Renesas Electronics R8A7795 rev 3.0 Model:Renesas H3ULCB board based on r8a7795 ES2.0+ with 8GiB (4 x 2 GiB) DRAM: 7.9 GiB ・・・ Hit any key to stop autoboot: 0 => setenv bootargs 'root=/dev/mmcblk1p1 rootwait rw ip=192.168.0.111::192.168.0.1:255.255.255.0::eth0:off' => setenv bootcmd 'ext4load mmc 0:1 0x48000000 /boot/Image-r8a7795-h3ulcb-4x2g.dtb; ext4load mmc 0:1 0x48080000 /boot/Image; booti 0x48080000 - 0x48000000' => saveenv Saving Environment to MMC... Writeng to MMC(1)... OK => run bootcmd 74202 bytes read in 3 ms (23.6 MiB/s) 18993664 bytes read in 208 ms (87.1 MiB/s) ・・・ Starting kernel ... ・・・ h3ulcb login: root root@h3ulcb:~# cd /lib/modules/4.14.75-ltsi-yocto-standard/ root@h3ulcb:/lib/modules/4.14.75-ltsi-yocto-standard# depmod -a root@h3ulcb:/lib/modules/4.14.75-ltsi-yocto-standard# cd / root@h3ulcb:/# export TZ=JST-9 root@h3ulcb:/# date 0604011920    <- MMDDHHMMYY format Thu Jun 4 01:19:00 JST 2020 root@h3ulcb:/# mount /dev/mmcblk1p2 /mnt root@h3ulcb:/# mount -t proc none /mnt/proc root@h3ulcb:/# mount -t sysfs none /mnt/sys root@h3ulcb:/# mount -t devtmpfs none /mnt/dev root@h3ulcb:/# chroot /mnt /bin/bash root@h3ulcb:/# echo nameserver 192.168.0.1 >/etc/resolv.conf root@h3ulcb:/# apt-get update root@h3ulcb:/# apt-get install -y apt-utils perl-modules root@h3ulcb:/# apt-get install -y ubuntu-standard root@h3ulcb:/# apt-get install -y vim net-tools ssh sudo tzdata rsyslog udev iputils-ping ・・・ Preconfiguring packages ... Package configuration Configuring tzdata Please select the geographic area in which you live. Subsequent configuration questions will narrow this down x x by presenting a list of cities, representing thee time zones in which they are located. 「When the TimeZone setting window opens, select Asia/Tokyo」 root@h3ulcb:/# apt-get upgrade root@h3ulcb:/# cd /etc/systemd/network root@h3ulcb:/etc/systemd/network# ls root@h3ulcb:/etc/systemd/network# cat >01-eth0.network [Match] Name=eth0 [Network] DHCP=ipv4 「Ctrl+D after writing」 root@h3ulcb:/etc/systemd/network# cd /etc root@h3ulcb:/etc# vi shadow 「Rewrite root line -> no PW」 root::18295:0:99999:7::: root@h3ulcb:/etc# vi /etc/ssh/sshd_config 「Rewrite as yes」 permitRootlogin yes root@h3ulcb:/etc# systemctl enable systemd-networkd root@h3ulcb:/etc# cp /usr/share/systemd/tmp.mount /etc/systemd/system/tmp.mount root@h3ulcb:/etc# systemctl enable tmp.mount root@h3ulcb:/etc# systemctl enable systemd-resolved root@h3ulcb:/etc# rm /etc/resolv.conf root@h3ulcb:/etc# ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf root@h3ulcb:/etc# exit root@h3ulcb:/# umount /mnt/proc root@h3ulcb:/# umount /mnt/sys root@h3ulcb:/# umount /mnt/dev root@h3ulcb:/# umount /mnt root@h3ulcb:/# reboot U-Boot 2020.01 (Mar 18 2021 - 06:36:02 +0000) ・・・ Hit any key to stop autoboot: 0 => setenv bootargs 'root=/dev/mmcblk1p2 rootwait rw' => saveenv => run bootcmd Ubuntu 18.04.4 LTS localhost.localdomain ttySC0 localhost login: root root@localhost:~# passwd root    <- PW setting Enter new UNIX password : h3ulcb Retry new UNIX password : h3ulcb root@localhost:~# dpkg-reconfigure tzdata 「When the TimeZone setting window opens, select Asia/Tokyo」 root@localhost:~# apt-get install -y language-pack-ja root@localhost:~# update-locale LANG=ja_JP.UTF-8 root@localhost:~# poweroff
 * 1) Flattened Device Tree blob at 48000000

After this, pressing the power bottom will boot Ubuntu 18.