Hi Kin Thanks for your reply. It is not only because users with passwords logging in. But also when there is a new script from you or when I change the MOTD or even when the sd-card stops working. Om my pc I have an image which I copy with Win32diskimager to the SD card. But this can take as long as 30 minutes. So I want to backup not only dxspider but the whole image containing dxspider as wel as the operating system files just in case the SD card fails after some time. Then I only have to change the sd card (which uses the latest backup image) to get dxspider working. 73 Jan PA4JJ -- ____________________________________________________ my dxspider clusters running on a raspberry pi: pa4jj-2 77.174.195.163 port 7300 pa4jj-3 77.174.195.163 port 7388