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Distrobox on Crostini

Step 1: Set up UIDs and GIDs for rootless podman

Open terminal (penguin) and run

sudo apt install uidmap podman -y

Now close terminal and execute ctrl + alt + t :bruhtest

After this run the following commands:

vsh termina

lxc exec penguin -- /bin/sh -c "printf '%s\n' '1000:100000:65536' | tee /etc/subuid /etc/subgid"

After this close the window and open terminal again.

Step 2: Install Distrobox

Everything here can be condensed into one command:

mkdir ~/.local
mkdir ~/.local/bin
PATH=$PATH:~/.local/bin
git clone https://github.com/89luca89/distrobox.git
cd distrobox
./install

After this, you can now use Distrobox on your chromebook!

Alternatively, here are the docker instructions:

Open terminal (penguin) and run

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

After this, run

sudo groupadd docker && sudo usermod -aG docker $USER
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Finally, right click terminal in your taskbar and select power off. After this, proceed to Step 2

Setting up Docker's registries in Podman

Use your favourite editor and open /etc/containers/registries.conf

Now change ## unqualified-search-registries = ["example.com]

to unqualified-search-registries = ["docker.io"]

After this, you can now pull Docker images with Podman.

Foreign architecture support (Podman only)

Open crosh again (ctrl + alt + t)

Now run

vmc container termina penguin --privileged true

sudo apt install qemu-user-static binfmt-support

and close crosh.

Finally, right click terminal in your taskbar and select power off.