How to recover a deleted MySQL database?

Question

linux

Good afternoon!
I'm new to server administration, but I need to solve one problem.
There is a server on Debian with web server management on ispmanager'e.
Accidentally deleted an important database (MySQL DBMS) without having time to make a backup.
It is impossible to restore the database using ispmanager'a.
Therefore, I suggested that it is possible to restore the directory with files (tables) at /var/lib/mysql and restore the database based on them.
But it did not work, I tried several programs:

• TestDisk and extundelete: Can't see device
  
• foremost and scalpel: Lack of knowledge to create a config for file types: frm, MYD, MYI.
  Namely, specify the beginning and end of the file ...
  

Questions:

1. What other ways are there to recover a deleted database?
   
2. Why doesn't "fdisk -l" list devices?
   
3. What is the config for restoring files like frm, MYD, MYI in front or scalpel?
   

Answer 1

First you need to stop everything on the server so that there is no writing to the server
. The format of muscle files can be looked at in Google, file recovery is a chore and for a long time without delving into the essence, nothing can be restored, so first you have to read and experiment for a week on another server