When booting Linux into single user mode or rescue mode, you will find that unless the distro was found and enabled the logical volumes, you wont see any devices.
This makes it a fun task when you need to mount, scan, resize a partition. Below are instructions on enabling your logical volumes.
lvm vgscan lvm vgchange -ay lvm lvs
It’s as simple as that, now you should see your normal LVM devices in /dev
Tags: booting Linux, don't wait to educate, lvm, single user mode