diff --git a/export-image/prerun.sh b/export-image/prerun.sh
index 7e0d1eb..ea1e2d6 100755
--- a/export-image/prerun.sh
+++ b/export-image/prerun.sh
@@ -9,11 +9,11 @@ rm -f "${IMG_FILE}"
 rm -rf "${ROOTFS_DIR}"
 mkdir -p "${ROOTFS_DIR}"
 
-BOOT_SIZE=$(du --apparent-size -s "${EXPORT_ROOTFS_DIR}/boot" --block-size=1 | cut -f 1)
+BOOT_SIZE="$((256 * 1024 * 1024))"
 TOTAL_SIZE=$(du --apparent-size -s "${EXPORT_ROOTFS_DIR}" --exclude var/cache/apt/archives --block-size=1 | cut -f 1)
 
 ROUND_SIZE="$((4 * 1024 * 1024))"
-ROUNDED_ROOT_SECTOR=$(((2 * BOOT_SIZE + ROUND_SIZE) / ROUND_SIZE * ROUND_SIZE / 512 + 8192))
+ROUNDED_ROOT_SECTOR=$(((BOOT_SIZE + ROUND_SIZE) / ROUND_SIZE * ROUND_SIZE / 512 + 8192))
 IMG_SIZE=$(((BOOT_SIZE + TOTAL_SIZE + (800 * 1024 * 1024) + ROUND_SIZE - 1) / ROUND_SIZE * ROUND_SIZE))
 
 truncate -s "${IMG_SIZE}" "${IMG_FILE}"
@@ -23,7 +23,7 @@ n
 
 
 8192
-+$((BOOT_SIZE * 2 /512))
++$((BOOT_SIZE / 512))
 p
 t
 c
diff --git a/export-noobs/00-release/00-run.sh b/export-noobs/00-release/00-run.sh
index 85ee454..b5f1272 100755
--- a/export-noobs/00-release/00-run.sh
+++ b/export-noobs/00-release/00-run.sh
@@ -16,7 +16,7 @@ ROOT_SIZE="$(xz --robot -l "${NOOBS_DIR}/root.tar.xz"  | grep totals | cut -f 5)
 BOOT_SIZE="$(( BOOT_SIZE / 1024 / 1024 + 1))"
 ROOT_SIZE="$(( ROOT_SIZE / 1024 / 1024 + 1))"
 
-BOOT_NOM="$(( BOOT_SIZE * 3 ))"
+BOOT_NOM="256"
 ROOT_NOM="$(( ROOT_SIZE + 400 ))"
 
 mv "${NOOBS_DIR}/OS.png" "${NOOBS_DIR}/${NOOBS_NAME// /_}.png"