Update Docker installation and add prerun script for stage2.1_custom

stage2.1_custom/00-install/00-run.sh

@@ -1,18 +1,29 @@
 #!/bin/bash
 set -e
 
-# Install Docker (official instructions for Raspberry Pi OS)
-curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
+# do some checks first
+echo "DEBUG: Listing /home"
+ls -l /home
+echo "DEBUG: Checking for python3"
+which python3 || echo "python3 not found"
+echo "DEBUG: Checking user 'caster'"
+id caster || echo "user caster not found"
 
-apt-get update && apt-get install -y lsb-release
 
-echo \
-  "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/debian \
-  $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
+# Add Docker's official GPG key:
 apt-get update
-apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
+apt-get install -y ca-certificates curl
+install -m 0755 -d /etc/apt/keyrings
+curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
+chmod a+r /etc/apt/keyrings/docker.asc
 
-systemctl enable docker || true
+# 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 \
+  bookworm stable" | \
+  tee /etc/apt/sources.list.d/docker.list > /dev/null
+apt-get update
+apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
 
 # Ensure docker group exists and add main user to it
 DOCKER_GROUP=docker
@@ -23,7 +34,7 @@ fi
 USER_TO_ADD="${FIRST_USER_NAME:-pi}"
 usermod -aG "$DOCKER_GROUP" "$USER_TO_ADD" || true
 
-docker compose version || true
+docker compose version
 
 # Install Python Poetry (official installer)
 curl -sSL https://install.python-poetry.org | python3 - 

stage2.1_custom/prerun.sh

@@ -0,0 +1,5 @@
+#!/bin/bash -e
+
+if [ ! -d "${ROOTFS_DIR}" ]; then
+	copy_previous
+fi