I have a SQL database which I want to backup as a snapshot. I want to use LVM to do so, but I am not able to do it. Also my database is not stored in a LVM partition but its located in my /dev/sda2 partition.So how do I get it done? I have just tried creating a snapshot of a LVM partition which I had created for testing purpose and it was a success, but not able to create the same with /dev/sda2. 
Physical Backup of Maria DB as a snapshot using LVM
backup;lvm;snapshot;sql;mariadb