When I reboot the system, bios was updated and after that it stuck on Ubuntu logo. I tried the suggestions here: Screen stuck at the Ubuntu logo
but after choosing recovery mode, it is hanging on the message A start job is running for Create Volatile Files and Directories ( Xmin Ys / no limit). Also, after rebooting, couldn't get slze: 0x8000000000000e and a bunch of other errors are shown. Then Ubuntu logo comes and stuck in that. Any help would be much appreciated.