I just updated my mandriva 10.1 to 2006 via urpmi. When I booted for the first time, I couldn't get the x server to work. I logged as root on shell and did startx. The reply was:
hostname:Unknown host
xauth:creating new authority file /root/.serverauth.8739
xini:relocation error:xini:symbol_sprintf_chk,version GLIBC_2.3.4 not defined in file libc.so6 with link time reference
Thanks for your help