Now I have more information and I can reproduce my crash/reboot

- I flash with 30 June
- add repository maemo-hackers.org/apt mistral main (to install xterm)
- install xterm
- activate R&D mode (to modify /usr/bin/gainroot)
- disable R&D mode
- add some repository
- apt-get update
- apt-get upgrade
upgrade propose 14 update: I said Yes, system crash with libtelepathy install.

this my repository list I copy from some post: (I don't remeber where)

TAKE CARE OR YOU WILL CRASH YOUR SYSTEM, YOU HAVE BEEN WARNED !!!

deb http://repository.maemo.org/contrib/ mistral free non-free
deb http://repository.maemo.org/ mistral free non-free
deb http://only.mawhrin.net/fbreader/maemo/ mistral user
deb http://www.kernelconcepts.de/~fuchs/nokia770/ex_2006/ ./
deb http://www.mulliner.org/nokia770/repository/ maemo2 free
deb http://maemo.org.br/platform/apt/ python python
deb http://zeus.rm-fr.net/~skyhusker/maemo/ mistral user
deb http://www.oakcourt.dyndns.org/maemo/ ./


Thank you for your tips hallgreng,
I will make a new try with it and see if I can have libtelepathy version


asap,
Laurent.