linux lvm

pvscan

vgscan

lvscan

lvscan
  inactive          '/dev/centos/swap' [2.00 GiB] inherit
  inactive          '/dev/centos/home' [17.80 GiB] inherit
  inactive          '/dev/centos/root' [36.46 GiB] inherit



vgchange -a y centos


https://www.tldp.org/HOWTO/LVM-HOWTO/activatevgs.html
11.3. Activating a volume group
vgchange -an centos



apt

ls /dev/centos



mount /dev/centos/root testmount

mount /dev/centos/home testmount


http://marcustsai.blogspot.com/2010/11/lvm.html
LVM實作


https://wiki.ubuntu.com/Lvm
https://help.ubuntu.com/lts/serverguide/advanced-installation.html.en