A 2 months ago I upgreded my servers to Jessie 8.0. It's worked nice. Yesterday I have updated to Jessie 8.3 from kernel 3.2.0-4 to kernel 3.16.0-4 but my web server can't boot. The another servers just works fine with new kernel. Gave up waiting for root device. Common problems: -Boot args (cat /proc/cmdline) -Check rootdelay= (did the system wait long enough?) -Check root= (did the system wait for the right device?) -Missing modules (cat /proc/modules; ls /dev) Then its go to shell initframfs.... If I go back and boot from old kernel 3.2.0-4 then its boot normally. Any help????