Recovering deleted data

[yad]

Linux mint suddenly downgraded after upgrading and finally corrupted to fail starting up. Therefore, I booted by laptop using linux kali and using it safely to-date. But I need to recover my data from the deleted OS or formated disk with linux kali. Which tool is convenient for getting data back?

[Fred Sheehan]

One of the best tools for any platform is testdisk.
Its a command line tool only, but can recover partitions as well as individual files;

sudo apt update
sudo apt install testdisk

[Fred Sheehan]

Oh yes, or safecopy, again command line but written in C and fast;

sudo apt install safecopy -y

It might even be pre-installed!