diff --git a/README.md b/README.md
index 6c60181..0cf1200 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,9 @@
 
 The APU is a Linux box to be used as a control box at LIN sample environment
 
-servercfg/  contains the configuration files for all boxes
+`servercfg/`  contains the configuration files for all boxes
 
-to_system/  contains the files to be installed in the system
+`to_system/`  contains the files to be installed in the system
 
 ## config files
 
@@ -86,72 +86,67 @@ available on control boxes (MLZ type) only. must therefore not be present on bar
 
 ## Installation of a Fresh Control Box or bare APU
 
-### Tools / Resources needed
-
-#### progress bar
-
-On mac use ``brew install pv`` to install. If you do not want it, you may leve it out,
-it is a matter of convenience. In this case omit ``| pv `` in the commands
-
-
-
 ## install image by means of the USB stick BOOT_TINY
 
 The stick has TinyLinux on it and some additional scripts
 
-If you do not have one, you may create it logging to an other box as root
+If you do not have one, you may create it from another box
 
 ### a) create a USB stick with TinyLinux (omit if you have the stick already)
 
-to verify that /dev/sdb is your stick, use the following command before and after plugging the stick
+log in as root/FrappyLinse to an apu box
 ```
 apu> cd aputools
 apu> bash mkusb.sh
-
-... you are asked to give the device name from a list (typically sdb) ...
-
 ```
+You are asked to give the device name from a list (typically sdb)
+before it writes to the stick.
 
-### b) mount with TinyLinux from USB stick
+
+### b) boot with TinyLinux from USB stick
 
 Connect a Mac with an USB to serial adapter (and null-modem!).
 ```
 mac> screen /dev/tty.usbserial-130 115200
 ```
 
-Do not yet connect LAN, plug USB stick and start the box, wait for prompt 'tc@box:'
+Do not yet conenct to LAN, if the box is not yet registered to PacketFence.
+Plug USB stick and start the box, wait for prompt 'tc@box:' and cd into BOOT_TINY
 ```
-apu> cd /media/BOOT_TINY  (or /media/CENTOS_APU)
-apu> sh reg
+cd /media/BOOT_TINY
 ```
 
-enter new hostname (HWaddr  will be on the output)
-register to PacketFence (if not yet done) and set role to sinq-samenv
-connect LAN to rightmost socket on a bare APU or the leftmost socket an a control box
+### c) Determine address/name for registering in PacketFence
+
+```
+sh reg
+```
+enter new hostname (HWaddr will be on the output)
+register to PacketFence and set role to sinq-samenv
+connect LAN to rightmost socket on a bare APU or the leftmost socket on a control box
+
+
+### d) Copy Image to APU SSD
+
+```
+sh write_to_ssd
 ```
-apu> sh tiny
-...
 some random art images are shown ...
-...
-inet addr:129.168.1.43  Bcast:192.168.1.255  Mask:255.255.255.0
-inet addr:127.0.0.1  Mask:255.0.0.0
+```
+images from l_samenv@samenv:boxes/images:
+
+apumaster_2022-11-09.lz4
+apumaster_2024-01-18.lz4
+
+which image?
 ```
 
-Use the displayed ip address for the following step.
+* Enter the image you want to write (typically the last one).
+* It will take around 10 mins to write the image.
+* remove the stick, power off/on (or do `sudo reboot now`)
 
 
-### c) Copy Image to APU SSD
-
-Note that the images are not part of the git repo.
-
-```
-mac> cd ~/switchdrive/apu/images
-mac> dd if=apumaster.lz4 bs=512k | pv | ssh root@192.168.1.43 "lz4 -d | dd of=/dev/sda bs=512k"
-```
-
-(you are asked for root password, which is root, ``| pv `` may be omitted)
-
-remove the stick, power off/on
+### e) Install Services
 
 login with root/FrappyLinse
 ```
@@ -168,29 +163,11 @@ enter host name:
 DONE!
 
 
-### d) Cloning an Image from an Existing Box
+### f) Cloning an Image from an Existing Box
 
-Use (b) above to boot from TinyLinux (replace the IP address by the one from the box!)
-First make sure that a copy of the last apumaster.lz4 is saved with its date.
+Use (b) above to boot from the BOOT_TINY USB stick
 ```
-mac> ssh root@192.168.1.43 "dd if=/dev/sda bs=512k | lz4" | pv | dd of=apumaster.lz4 bs=512k
+$ sh clone
 ```
-
-
-### e) Appendix
-
-Source of scripts on TinyLinux:
-```
-apu> cat tini.sh
-tce-load -wi nano
-tce-load -wi lz4
-tce-load -wi openssh
-sudo /usr/local/etc/init.d/openssh start
-sudo chpasswd << EOF
-tc:tc
-root:root
-EOF
-ifconfig | grep 'inet addr'
-```
-
+You are asked