Hi,

On Mon, 31 Aug 2020 23:04:25 -0400
Raghav Gururajan <raghavgururajan@disroot.org> wrote:

> Hi Danny!
> 
> > Usually that means file-system corruption, which very likely was caused by a
> > hardware (disk) problem.  I've had it before, and shortly after the disk died.  
> 
> Oh no! My disk is a SSD, which is only about 2 years old. Isn't that too
> soon?
> 
> Btw, is there a tool to check the health of the disk?

Yes--usually it's a program in the disk firmware.

You can steer it and look at what it did using smartctl (in package
smartmontools).

But I'd advise to check dmesg because it could also be a RAM problem, or a
number of other things.

(UNIX also has fsck to check the filesystem, but it already automatically
does that on reboot when problems arised.  So little need to manually
fiddle with that)