diff --git a/install-on-metal.sh b/install-on-metal.sh
index 7ab3529..99e7c2a 100755
--- a/install-on-metal.sh
+++ b/install-on-metal.sh
@@ -1,37 +1,23 @@
 #! /bin/sh
 
 if [ $# -ne 2 ]; then
-    echo "USAGE: $0 <device> <base url>"
+    echo "USAGE: $0 <device>"
 fi
 
 dev=$1
-base_url=$2
-
-: ${MP:=/mnt}
 
 set -ex
 
-mkdir -p $MP
+apk add sgdisk
 
 [[ $dev =~ nvme ]] &&
     devp=${dev}p ||
     devp=${dev}
 
-if vgdisplay storage; then
-    # the system is already installed, just upgrade
-    mount -t vfat ${devp}1 $MP
-    curl ${base_url}/boot.tar |tar xv -C $MP
-    umount $MP
+zcat boot.img.gz | dd of=$dev
 
-else
-    sgdisk --clear $dev
+sgdisk --move-second-header --new=3:0:0 $dev
 
-    curl ${base_url}/boot.img.lz4 |lz4cat >$dev
+pvcreate ${devp}3
+vgcreate storage ${devp}3
 
-    sgdisk --move-second-header --new=3:0:0 $dev
-
-    pvcreate ${devp}3
-    vgcreate storage ${devp}3
-fi
-
-while umount $MP; do true; done