Ok, I've fixed the thing...
I was right that something in /etc/something was wrong.. indeed /etc/
nsswitch.conf had this line:
groups ldap files
in place of
groups files ldap
The line should be ok but for nsswitch.ldap !!!
As the system booted could not find correct group (i.e. utmp) and
everything got stuck. Also chroot didn't work for the same reason.
BTW, thanks to all, I will pay double attention next time!
d
/*
Davide Cittaro
Cogentech - Consortium for Genomic Technologies
via adamello, 16
20139 Milano
Italy
tel.: +39(02)574303007
e-mail: [EMAIL PROTECTED]
*/