HowTo Resize The "root" File System Using LVM

Overview

This page demonstrates how to resize the root file system by increasing it's size by 2GB using theLogical Volume Manager (LVM). The follow environment exists:

• The root file system is under LVM control:

[root@nst22 ~]# ssm list;
-----------------------------------------------------------
Device        Free      Used      Total  Pool   Mount point
-----------------------------------------------------------
/dev/sda                       20.00 GB         PARTITIONED
/dev/sda1                     500.00 MB         /boot
/dev/sda2  0.00 KB  19.51 GB   19.51 GB  nst22
/dev/sdb   2.00 GB   0.00 KB    2.00 GB  nst22
-----------------------------------------------------------
-------------------------------------------------
Pool   Type  Devices     Free      Used     Total
-------------------------------------------------
nst22  lvm   2        2.00 GB  19.51 GB  21.50 GB
-------------------------------------------------
------------------------------------------------------------------------------------
Volume           Pool   Volume size  FS      FS size       Free  Type    Mount point
------------------------------------------------------------------------------------
/dev/nst22/root  nst22     17.51 GB  xfs    17.50 GB    5.88 GB  linear  /
/dev/nst22/swap  nst22      2.00 GB                              linear
/dev/sda1                 500.00 MB  ext4  500.00 MB  288.89 MB  part    /boot
------------------------------------------------------------------------------------

• The root file sytem is of type xfs

[root@nst22 ~]# mount | grep root;
/dev/mapper/nst22-root on / type xfs (rw,relatime,attr2,inode64,noquota)