Full upgrade stopped with error "Could not calculate the upgrade". I opened var/log/dist-upgrade/main.log and there was problem with unity (could not remove it, because it was blacklisted) so I removed unity manualy (recommendation from forum). After that I run software update again and it gave me option for partial upgrade.
After I did partial upgrade to ubuntu 17.10 I had to restart computer. It gets past GRUB menu and after that stucks while showing (blinking) "Ubuntu:clean, 998941/2949120 files, 8509242/11796480 blocks". Sometimes it shows additional row "ubuntu:recovering journal".
I tried chosing Advanced Option, Recovery mode, Root and typed sudo fsck -f / . I get message "Superblock last write time is in the future. (by less than a day, probably due to the hardware clock being incorrectly set)". Then I get Pass 1 to 5, all Checking different things and in the end "Ubuntu: 998916/2949120 files (0.6% non-contiguous), 8509840/11796480 blocks".
Update: I edited grub file (removed quiet and added nomodeset) and this is photo of booting process when it stucks: https://www.dropbox.com/s/4qvlymlzufkd2j5/IMG_20171102_211651.jpg?dl=0
Update: I can get to terminal with multiple time hitting ctrl+alt+F1
@panther: I managed to run live DVD and did fsck (no error) and SMART self-test (in Disks) - it completed successfully. So I guess I'm ok. Should I reinstall 17.10 from the same live DVD? Will I not lose my /home folder, my old data,...?