update and test script

base-image-script/alpine-image_pt3.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+set -e
+
+ROOTFS_DIR="$1"
+OUTPUT_TAR="$2"
+
+echo "[INFO] Unmounting system dirs..."
+sudo umount -lf "$ROOTFS_DIR/dev"
+sudo umount -lf "$ROOTFS_DIR/proc"
+sudo umount -lf "$ROOTFS_DIR/sys"
+
+echo "[INFO] Cleaning up chroot script..."
+sudo rm -f "$ROOTFS_DIR/alpine-base_pt2.sh"
+
+echo "[INFO] Creating tarball: $OUTPUT_TAR"
+sudo tar -czf "$OUTPUT_TAR" -C "$ROOTFS_DIR" .
+
+echo "[INFO] Image size:"
+du -sh "$OUTPUT_TAR"
+
+# OPTIONAL FTP upload
+ echo "[INFO] Uploading via FTP..."
+ ftp-upload -v -h <IP> -u <USER> --password <PASS> -d /path "$OUTPUT_TAR"
+
+echo "[INFO] Cleaning up rootfs directory..."
+sudo rm -rf "$ROOTFS_DIR"
+
+echo "[INFO] Done."