Today i encountered a problem with my ubuntu 18.10 machine that has proved difficult, at least for me, to tackle so i am asking for help.
Today in the morning i used my pc just fine, but when i came back from work it refused to open and it freezes to some point while booting.
Unfortunately i can only provide an image of the freeze as follows:
Now, i searched for the last message on the internet but i could only find inquiries about how to cancel the disk checks.
In my case of course that, is not an option since the pc is frozen at this state. I let it run for an hour in hope that it actually was disk checking, but to no avail.
Now, on the same PC i have a second installation of Ubuntu 18.04 which works fine, (plus a windows 10 installation that also works fine), and it is the installation from which i am asking the question.
From my 18.04 system i checked all the disks and they are ok and my whole system is working fine with 18.04
After a few resets it finally booted and the 18.10 system worked fine, until of course i shut it down and when i tried to boot it up it freezes in almost the same point, as you can see in the second picture.
If i select my Ubuntu 18.04 installation in grub it always starts ok and, keep in mind that both ubuntu systems use the same disks, mounted at the same points.
My PC is a AMD A8 - NVidia GT740 - 16GB RAM - 8 HDDs
I really do not think it is a hardware problem since the system is running fine with 18.04, but the boot freezes completely.
Can anyone think of anything on that ?
P.S. The red vertical line in the pictures is a monitor defect not a vga one.
----- Edit New Info -----
After some reading i disabled all disk checking on boot, but the problem persists although now it does not show the message about the fsck.
Now it freezes on the message about starting the GNOME Display Manager.
What is weird is that many times it boots normally while some other times it does not.
0 Answers