I use a primarily windows system dual booted with my ubuntu 18.04
Since about 1 year, I was not able to boot up into ubuntu (initramfs prompt opens, and no solution I could find worked).
This original issue occurred after a BIOS update from windows.
So unable to solve the issue from grub directly, I decided to use boot-repair from a live USB. That is exactly what is did, and noticed the following irreguralities-
I am not able to detect any hdd partition whatsoever from the live USB boot. Things I tried-
sudo fdisk -l(and loads of other similar commands)
All of them show the pendrive itself as the only partition /dev/sda1
Now, detecting the partitions was important because I was doing what boot-repair does without boot-repair. But that requires mounting on the ubuntu partition etc, which is basically non existent according to the commands/programs
Also, this does not imply that my ssd has vanished somehow xD because I later booted into windows which was completely fine with all the files intact, and so was the ubuntu partition, alive and healthy.