build: drop redundant .sparse.img generation and update docs

MANUAL.md

@@ -13,8 +13,7 @@ This manual covers flashing, operating, and customizing **Bananarchy Linux** (Sx
 ## 1. System overview & workspace contents
 
 ### 1.1 System images (`images/`)
-- `images/bananarchy-nokia-argon.img` — raw partitioned image (`256 MiB` `ext2` `pmOS_boot` + `ext4` `pmOS_root`) ready for EDL flashing to `userdata` or raw `dd` to a microSD card.
-- `images/bananarchy-nokia-argon.sparse.img` — Android sparse image for `fastboot flash userdata`.
+- `images/bananarchy-nokia-argon.img` — partitioned image (`256 MiB` `ext2` `pmOS_boot` + `ext4` `pmOS_root`) ready for EDL flashing to `userdata`, `fastboot flash userdata`, or raw `dd` to a microSD card.
 - `images/boot-bananarchy-nokia-argon.img` — standalone Android `boot.img` with Linux `6.12.1-msm8916`, initramfs, and appended DTB.
 - Additional device images (`bananarchy-nokia-beatles.img`, `bananarchy-nokia-tough.img`, `bananarchy-nokia-sparkler.img`) can be generated at any time via `./rebuild-image.sh <device> --mkinitfs`.
 
@@ -65,9 +64,9 @@ The script will:
 ### Method B: Fastboot flashing (once `lk2nd` is installed)
 
 1. Hold **D-Pad up** while powering on the phone to enter `lk2nd` Fastboot mode.
-2. Flash the sparse system image to `userdata`:
+2. Flash the system image to `userdata`:
    ```bash
-   fastboot flash userdata ./images/bananarchy-nokia-argon.sparse.img
+   fastboot flash userdata ./images/bananarchy-nokia-argon.img
    fastboot erase system
    fastboot reboot
    ```

README.md

@@ -54,7 +54,7 @@ bananarchy/
 ├── MANUAL.md                              # Complete flashing, keypad, plugin, T9, camera, and modem manual
 ├── flash-edl.sh                           # Automated USB EDL flasher wrapper (sudo + ModemManager handling)
 ├── flash-edl.py                           # Multi-device Qualcomm Sahara/Firehose EDL flasher
-├── rebuild-image.sh                       # Builds boot.img, MBR raw .img, and Android .sparse.img
+├── rebuild-image.sh                       # Builds boot.img and partitioned MBR .img
 ├── chroot-shell.sh                        # Rootless Docker armv7 package & rootfs customization shell
 ├── artwork/                               # Bananarchy master icon, generated icons, wallpapers, and splashes
 ├── bootloader/                            # lk2nd secondary bootloader and Sahara/Firehose programmer (8110.mbn)
@@ -130,8 +130,7 @@ All components are pre-compiled in `prebuilt/` and `overlay/rootfs/`, and can be
 ./rebuild-image.sh nokia-sparkler --mkinitfs
 ```
 Output images are written to `images/`:
-- `images/bananarchy-<device>.img` (raw partitioned MBR image for EDL `userdata` or microSD card)
-- `images/bananarchy-<device>.sparse.img` (Android sparse image for `fastboot flash userdata`)
+- `images/bananarchy-<device>.img` (partitioned MBR image for EDL `userdata`, `fastboot flash userdata`, or microSD card)
 - `images/boot-bananarchy-<device>.img` (kernel + initramfs + DTB boot image)
 
 ---

rebuild-image.sh

@@ -244,11 +244,10 @@ EOF
   rm -rf "$ROOTFS/boot"
   mv "$SAVED_BOOT" "$ROOTFS/boot"
 
-  echo "[4/5] Assembling partitioned MBR raw image and Android sparse image..."
+  echo "[4/5] Assembling partitioned MBR raw image..."
   RAW_IMG="/images/bananarchy-$TARGET_DEVICE.img"
-  SPARSE_IMG="/images/bananarchy-$TARGET_DEVICE.sparse.img"
   TOTAL_MB=$(( 1 + BOOT_MB + ROOT_MB ))
-  rm -f "$RAW_IMG" "$SPARSE_IMG"
+  rm -f "$RAW_IMG" "/images/bananarchy-$TARGET_DEVICE.sparse.img" "/images/nokia-argon-sxmo.sparse.img"
   truncate -s "${TOTAL_MB}M" "$RAW_IMG"
 
   BOOT_SECTORS=$(( BOOT_MB * 2048 ))
@@ -266,11 +265,8 @@ SFEOF
   dd if="$ROOT_IMG" of="$RAW_IMG" bs=1M seek=$(( 1 + BOOT_MB )) conv=notrunc,sparse status=none
   rm -f "$BOOT_IMG" "$ROOT_IMG"
 
-  img2simg "$RAW_IMG" "$SPARSE_IMG"
-
   if [ "$TARGET_DEVICE" = "nokia-argon" ]; then
     ln -f "$RAW_IMG" "/images/nokia-argon-sxmo.img"
-    ln -f "$SPARSE_IMG" "/images/nokia-argon-sxmo.sparse.img"
   fi
 
   echo "[5/5] Restoring host user ownership on $ROOTFS for easy host editing..."
@@ -278,5 +274,5 @@ SFEOF
   chmod -R u+rwX "$ROOTFS"
 
   echo "Built Bananarchy images for $TARGET_DEVICE:"
-  ls -lh "/images/boot-bananarchy-$TARGET_DEVICE.img" "$RAW_IMG" "$SPARSE_IMG"
+  ls -lh "/images/boot-bananarchy-$TARGET_DEVICE.img" "$RAW_IMG"
 '