My introduction

Introductions
1

Hello Ubuntu Community!

My name is Aneesh Lingala!

I am currently at my ARM Chromebook running Ubuntu Unity to write this.

I started using Ubuntu when I was 8. The first version I used is Focal Fossa. I am now 11 years old.

I want to get Ubuntu to all kinds of computers, from random laptops, to ARM Chromebooks.

If anyone has a spare ARM Mediatek MT8183 Chromebook that they can test Ubuntu Unity on, please reply to the topic Ubuntu Unity ARM Chromebook Port v22.04.

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2

This looks amazing! I’m certain you’ll find testers in the Ubuntu Unity Telegram group. Once a few users have tested it on other hardware, I’ll make sure to add links to your repo on ubuntuunity.org :slight_smile: It’s great to see young people like you continuing to join the Ubuntu community.

I inspected the images you’re using as the base (https://github.com/hexdump0815/imagebuilder), and hacked together a tiny little builder you could adapt. I hope of this is of help to you. You’ll need to choose between using a chroot or systemd-nspawn for making changes to the root filesystem, and I’ve provided examples for both (so just comment out the other one). I recommend using systemd-nspawn as it should take care of all the mounts for you.

This should remove the need for you to build images by hand, and should produce ready-to-use images without the need for multiple stages.

# $MNT should be set to any temporary directory for mounting the root filesystem.
# Similarly, $IMAGE should be set to the path to the original image (.img) you're building upon.

mkdir -p $MNT
OFFSET=$(parted "$IMAGE" unit b print | grep "btrfs" | awk '{ print substr($2,0,length($2)-1) }')
mount -o loop,offset="$OFFSET" "$IMAGE" "$MNT"

########################################
# Option 1: use chroot (not recommended)

mount -t proc /proc "${MNT}/proc/"
mount --rbind /sys "${MNT}/sys/"
mount --rbind /dev $MNT/dev/
mount --rbind /run $MNT/run/

chroot "${MNT} /bin/sh" <<EOF
# Any commands go here.
echo "Hello from  chroot!"
EOF

umount $MNT/proc
umount -l $MNT/sys
umount -l $MNT/dev
umount -l $MNT/run

########################################

########################################
# Option 2: use systemd-nspawn (recommended)

systemd-nspawn --bind "/etc/resolv.conf" -D "$MNT" -- echo -n "Hello"
systemd-nspawn --bind "/etc/resolv.conf" -D "$MNT" -- echo -n "world!"

########################################

# Image generation.

cd $CURRENT_DIR
umount -l $MNT
rmdir $MNT
mv $IMAGE "ubuntu-unity-chromebook.img"
md5sum "ubuntu-unity-chromebook.img" > "ubuntu-unity-chromebook.img.md5sum"
rm -f "ubuntu-unity-chromebook.img.xz" && xz -k "ubuntu-unity-chromebook.img.img"
md5sum "ubuntu-unity-chromebook.img.xz" > "ubuntu-unity-chromebook.img.xz.md5sum"
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Thanks for the builder! I am currently getting it adjusted to my needs.

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I was not able to get the builder working good, however, I have adjusted my current builder at https://github.com/chromebook-unity/create-usb, by adding a script to upgrade to the latest LTS or LTS Devel (23.04, 23.10, etc.) release

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And also, please reply to this page, Ubuntu Unity ARM Chromebook Port, not this page, from now on.

Thanks!

1 Like