I read somewhere that it is not recommended to put boot partition on lvm based partition. But, I'm doing it anyway. Then the only problem I've faced on this is sometimes when I install a new Linux distro and put it's boot partition on lvm, grub can't detect it. The grub-mkconfig command usually make a mistake on generating grub.cfg file. But, if this is the only problem on lvm based boot partition, I think it's okay. Because I know how to fix it, just give a proper address to the intended boot partition to boot and then everything goes fine.
So, is there anything other than this that lvm can cause problems? Because, in my opinion lvm is very flexible and didn't slow down the system.
Best Answer
It's not a performance problem, it's a troubleshooting and fixing things problem.
/bootis the bootstrap location - in there is a few files that start off everything else in your system.And sometimes you need to poke in there to fix a problem (such as grub config or similar).
If you have to do this, it's useful to have a lowest common denominators sort of filesystem, to make it as easy as possible if e.g. you have to remove the drive and put it in another box to edit a config file.
If you're in this position, you don't want to be having to 'fudge' your LVM into life just to be able to read it :).