Machine freezes after kernel update

[Miroslav Skoric <skoric@eunet.rs>]

Hi,

After the last kernel update and restart, a wheezy-based machine (laptop 
running 7.9) boots to some point, however it freezes just before opening 
GUI. Access to CLI (Ctrl-Alt-F1 etc) is also not possible. What to do to 
recover?

Regards,

M.