scripts

rebuild-squashfs.sh

@@ -0,0 +1,56 @@
+#!/bin/bash
+# Rebuild squashfs image from existing rootfs (after making changes)
+
+set -e
+
+BUILD_DIR="/srv/netboot/build"
+IMAGE_DIR="/srv/netboot/images"
+HTTP_DIR="/srv/netboot/http"
+VERSION=$(date +%Y%m%d-%H%M)
+
+if [ ! -d "$BUILD_DIR/rootfs" ]; then
+    echo "Error: $BUILD_DIR/rootfs does not exist"
+    echo "Run build-image.sh first to create the rootfs"
+    exit 1
+fi
+
+echo "Rebuilding squashfs image version $VERSION"
+
+# Copy kernel and initrd
+mkdir -p $IMAGE_DIR/$VERSION
+cp $BUILD_DIR/rootfs/boot/vmlinuz-* $IMAGE_DIR/$VERSION/vmlinuz
+cp $BUILD_DIR/rootfs/boot/initrd.img-* $IMAGE_DIR/$VERSION/initrd.img
+
+echo "Creating squashfs image..."
+mksquashfs $BUILD_DIR/rootfs \
+    $IMAGE_DIR/$VERSION/filesystem.squashfs \
+    -comp xz \
+    -Xbcj x86 \
+    -b 1M \
+    -noappend
+
+# Create version info
+cat > $IMAGE_DIR/$VERSION/version.txt <<EOF
+Build Date: $(date)
+Ubuntu Version: Noble (24.04)
+Kernel: $(ls $BUILD_DIR/rootfs/boot/vmlinuz-* | sed 's/.*vmlinuz-//')
+Image Size: $(du -h $IMAGE_DIR/$VERSION/filesystem.squashfs | awk '{print $1}')
+Rebuilt from modified rootfs
+EOF
+
+echo "Image created: $IMAGE_DIR/$VERSION/"
+ls -lh $IMAGE_DIR/$VERSION/
+
+# Update latest symlink
+ln -sfn $VERSION $IMAGE_DIR/latest
+
+# Deploy to HTTP directory
+echo "Deploying to HTTP directory..."
+rsync -av $IMAGE_DIR/$VERSION/ $HTTP_DIR/
+ln -sfn $VERSION $HTTP_DIR/latest
+
+echo ""
+echo "Build complete! Version: $VERSION"
+echo "Files available at: $HTTP_DIR/"
+echo ""
+echo "Old versions kept in: $IMAGE_DIR/"