ok, thanks
i got it so far.
I have root-access in main with no password!
btw. to check the partition on '/' I tried to mount diag again with no localisation:
Code:
mount /dev/mmcblk0p2
the answer was
Code:
/dev/mmcblk0p2 is allready mounted on / or busy
is seems that running diagmode need many power, got low battery warning

have to charge first befor i can continue with JB