Connexion ssh imediatement refermée

Bonjour,

Je suis embêté. J'ai bricolé mon raspi sur un client SSH ( j'ai essayé de chrooter) et maintenant je n'arrive plus à me connecter avec.
Après avoir entré le mot de passe :

 isabelle@isabelle's password: 
debug1: Authentication succeeded (password).
Authenticated to isabelle ([192.168.1.86]:22).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: network
debug1: Sending environment.
debug1: Sending env LANG = fr_FR.UTF-8
debug1: Sending env LC_NUMERIC = fr_FR.UTF-8
debug1: Sending env LANGUAGE = fr
Linux raspberryIsabelle 4.1.19+ #858 Tue Mar 15 15:52:03 GMT 2016 armv6l

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0
debug1: channel 0: free: client-session, nchannels 1
Connection to isabelle closed.
Transferred: sent 2664, received 2064 bytes, in 0.1 seconds
Bytes per second: sent 48811.2, received 37817.6
debug1: Exit status 1

Je ne comprends pas ce qui se passe.