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Working with Logical Volumes (LVM) in 2022

These days fdisk is kinda boomer. Here’s some alternatives:

• pvs - list physical volumes
• lvs - list logical volumes
• vgs - list volume groups
• lvcreate - create logical volume
• lvextend - extend existing volume
• pvcreate - create physical volume
• lsblk - list your block devices
• blkid - locate/print block device attributes
• vdisplay - display detailed info about volume group

root@mini1:~# pvs
  PV         VG        Fmt  Attr PSize    PFree
  /dev/sda3  ubuntu-vg lvm2 a--  <462.71g <362.71g
root@mini1:~# lvs
  LV        VG        Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  ubuntu-lv ubuntu-vg -wi-ao---- 100.00g                                         
root@mini1:~# vgs
  VG        #PV #LV #SN Attr   VSize    VFree
  ubuntu-vg   1   1   0 wz--n- <462.71g <362.71g

Examples:

Add a 100G volume on a system with free disk in existing LVM volume group (ubuntu-vg) to allocate:

lvcreate -L 100G -n ubuntu-mirror ubuntu-vg

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