Sysyem Not Booting

I have an old Dell Inspiron 3542. Yesterday morning during the routine boot, it did not boot well. Got the message:

 You are in emergency mode. After logging in type "journal -xb" to view system logs, "systemctl reboot" to reboot, "systemctl default" or "exit" to boot into default mode.
Give root password for maintenance
(or press Control-D to continue):

After performing the above recommended actions, the same message appeared. I even reinstalled Leap-15.3 twice, with proper downloading of the list of repositories and their packages. But the situation remained the same.
Windows 10 dual booting on the same computer is working perfectly. I checked up the health of the Hard Disk on the Windows. It showed all partitions on the disk as “Healthy”.

I Wish to request help on this problem:


What were the last things done with it before the shutdown that preceded the first boot into emergency mode?

Do you see any clues among the messages from doing journal -xb?

Did you try booting any of the advanced options offered by the Grub menu?

Official support for 15.3 ends this month. I recommend installing 15.4 rather than spending more than a little time trying to fix 15.3.

Thanks for the quick response.
The last thing that I did was to open Firefox browser. It did not open but message was displayed: “Firefox is running but is not responding…”. I rebooted and then this “emergency” occurred.
I did try to boot with “Advanced Boot option” of Grub but the same “emergency” message was shown. I did see the system log but could not make out any sense of it.
I do take your advice on Leap 15.4; but it can happen only when my system becomes functional.

Best Regards,

Can you watch the messages on the screen while booting (by hitting Esc)? hey may give a clue.

When you did not do an update right before things went wrong, it could point to a hardware problem.

Yes to me also it seems a hardware problem. Shall watch messages for a clue.
Thanks & Regards,

Or a file system problem (the messages should tell you).