LVM FTW

[Matthew Carpenter]

On Wednesday, July 22, 2015 08:28:15 AM Kurt Wall via Linux-users wrote:
> I could have learned more about LVM sooner. I just spent 10 minutes, which
> includes the time I spent reading man pages and a couple of HOWTOs (not at
> LDP, alas -- it's ancient), adding a TB disk and extending $HOME. That was
> *so* much simpler and faster than the gyrations I've done in the past to
> copy reams of data around.
> 
> Sometimes being stubborn does not pay off. ;)
> 
> K

+1

I've been using LVM in every non-VM system I've built for the past 10 years or 
so.  Now that all the bootloaders understand it, it's a no-brainer.  My VM 
host machine also uses it, because it's braindead simple to share the 3tb's 
differently between the VM's as needed.

It used to cause me pain, because I'd have RAID and LVM for my boot partition.  
I still do that occasionally, but since Grub understands the technologies 
better, it's not as big a deal.

Key thing to remember when boot-recovering from CD/DVD:
	vgchange -a y

and 
	/dev/mapper/ for your LV's.

Matt
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