I have usually worked with 3 LVM’s on my linux configured VM’s but some days ago I read that during installation, linux helps in creating two LVM’s. I asked, why another LVM, why another /home disk, is that necessary ??
Later I got to know its advantages:-
1). Whenever system upgrades or reinstall happens, since /home is separate, it won’t affect user data, which is a good design for data protection and redundancy.
2). Formatting /root directory and applying/changing mount options would not affect user data in /home.
3). Moving and resizing user would be easy.
But then I thought, what if some minimalist linux distro, doesn’t have separate lvm for /home, like arch-linux 😬 ?
“I guess we’ll never know“ 😇, since arch-linux use many different filesystem like brtfs with simple partitions, which also have separate /home.
But if you encounter no separate partition in different distros, you know what to do.
chau