I was trying to upgrade my Lubuntu 17.10 to Lubuntu 18.04.
The first time I tried with the Gui(Software & updates) which said me that had to download ~862 MB (if I'm not wrong) but during fetching files at the end (1473/1474) a friend of me for a joke clicked on cancel, a message popped up saying that If I want I can restart the upgrade of Lubuntu later by reopening the Gui. I tried and this time it shown that it could not download ~862 MB but only ~62 MB and I tried upgrading anyway but then It complitly stopped working during the fetching. I waited for 4hours nothing happened.
Tried to close the upgrade by cancelling everything was freezed and I was forced to shutdown forcibly. Restarted the pc, I tried via LXterminal to look with
lsb_release -a, and saw lubuntu 17.10 Then used
sudo apt update && sudo apt dist-upgrade than checked if I had 'update-manager-core' with 'sudo apt install update-manager-core' and said that it was damaged, and asked if it had to fix, answered yes, I checked againg and everything seeemed ok. I used
do-upgrade-release and the next morning (8 hours later I saw that it was shutted down.
I tried boot and a 'initframes' shall appared displaying an error of the folder '/dev/sda1' in some systemfiles and said to fix them manually by using fsck. I used 'fsck /dev/sda1' and than said the 98% of files were fixed. After restart I saw all the icons missing, even if I could start application or navigate in internet, but when I checked the version, I saw 'Ubuntu 18.04.1 LTS' with codename bionic.
Please I need help.