I was editing my disk and when i wrote the changes and exited cfdisk, no cli command worked. Thats when i realized that im f-ed up.
This what happened:
I have 3 partitions, 512M efi, a 100G root partition and some free (unallocated) space. I had 84G worth data in the root patition. I totally forgot that and shrinked the root partition to 32G to extend the free space. I was using cfdisk tool for this. I wrote the changes and rebooted my machine, by long pressing power button coz no cli commands worked after writing those chrnges, to see this.
So is it possible to recover my machine now?
:_ )
SOLUTION
Thanks to @dgriffith@aussie.zone.
cfdisk just updates the partition table. So no worry about data damage . To fix this, live boot -> resize the partition back its original size -> fsck that partition. For more explanation, refer @dgriffith@aussie.zone comment
cfdisk only changes the partition table, this table like a small paper that you store at the front (or back) of drive where you put information, it's just a list of coordinates like from this point to this point is your home, from this to this is your yard, from this to this is your neighbor. Just because you changed the values on your paper doesn't actually make your neighbor closer or further.
System read this list to figure out where are the "borders" between different sections that you defined to load and use them logically for multiple file systems.