diff --git a/chr.sh b/chr.sh
index a71cb0e..c179694 100644
--- a/chr.sh
+++ b/chr.sh
@@ -1,3 +1,4 @@
+#!/bin/bash
 dd if=/dev/zero of=/dev/sda bs=1 count=512 conv=notrunc
 sgdisk --set-alignment=2 --new=1::+32M --typecode=1:8300 --change-name=1:"RouterOS Boot" --attributes=1:set:2 --new=2::-0 --typecode=2:8300 --change-name=2:"RouterOS" --gpttombr=1:2 /dev/sda
 dd if=/dev/sda of=pt.bin bs=1 count=66 skip=446
@@ -9,16 +10,13 @@ dd if=mbr.bin of=/dev/sda  bs=1 count=446 conv=notrunc
 dd if=pt.bin of=/dev/sda  bs=1 count=66 seek=446 conv=notrunc
 sync
 partprobe /dev/sda
-
 mkfs.vfat -n "Boot" /dev/sda1
 mkfs.ext4 -F -L "RouterOS"  -m 0 /dev/sda2
 mkdir -p /tmp/{boot,routeros}
-
 mount -o loop,rw /dev/sda1  /tmp/boot
 mkdir -p  /tmp/boot/{BOOT,EFI/BOOT}
 wget -O /tmp/boot/EFI/BOOT/BOOTX64.EFI https://hub.gitmirror.com/https://github.com/elseif/MikroTikPatch/releases/download/7.15.2/BOOTX64.EFI
 umount /tmp/boot
-
 mount -o loop,rw /dev/sda2  /tmp/routeros
 mkdir -p /tmp/routeros/{var/pdb/{system,option},boot,rw}
 wget -O /tmp/routeros/var/pdb/option/image https://hub.gitmirror.com/https://github.com/elseif/MikroTikPatch/releases/download/7.15.2/option-7.15.2.npk