move the rpitools repo to boxtools/rpi

as we will need anyway boxtools also for rpis

README.md

@@ -201,3 +201,41 @@ Use (b) above to boot from the BOOT_TINY USB stick
 $ sh clone
 ```
 You are asked to confirm or change the image name.
+
+
+## Installation of a Fresh Raspberry Pi 
+
+### install from cloned image (work currently from a Mac only)
+
+Put compute module into PoE adapter, connect microUSB 'POWER' to
+a USB power supply, and connect micorUSB 'SLAVE' to your computer.
+
+Go to the rpi subdir and then start
+```
+cd rpi
+`./write_to emmc
+```
+
+You may test starting up the compute module in the PoE adapter, with a
+LAN cable attached, or directly in the iono pi max.
+
+* on startup, the name will be boxaaaaaa with aaaaaa the last digits of the ethernet address
+* a new file should be created in the cfg sub directory
+
+
+### installing RPI tools from an fresh raspberry image (downloaded with Raspberry Pi Imager)
+
+use the script install-ionopimax.sh or install-ionopi.sh
+(together with configsrtc.sh config-rtc-MCP79410.service)
+to add the needed items for iono pi and the run time clock
+
+### create a clone image
+
+In the rpi subdirectory, execute
+```
+./clone
+```
+An dated image will be created within about 10 min. and copied to the given directory.
+
+
+