First of all our vmware guest operating system must be in shutdown mode.
we need to add hard disk to our box.
go to settings—>
click add, then choose hard disk.
check option use an existing virtual disk
then choose file which will expand.
add a new hard disk, go to settings and choose our disk, click utilities–expand and write new size.
power on virtual machine.
[root@oel6 ~]# pvcreate /dev/sda3 Writing physical volume data to disk "/dev/sda3" Physical volume "/dev/sda3" successfully created [root@oel6 ~]# vgextend vg_oel6 /dev/sda3 Volume group "vg_oel6" successfully extended [root@oel6 ~]# lvextend -L +18G /dev/vg_oel6/lv_root /dev/sda3 Extending logical volume lv_root to 43.60 GiB Logical volume lv_root successfully resized [root@oel6 ~]# resize2fs /dev/mapper/vg_oel6-lv_root 43G resize2fs 1.41.12 (17-May-2010) Filesystem at /dev/mapper/vg_oel6-lv_root is mounted on /; on-line resizing required old desc_blocks = 2, new_desc_blocks = 3 Performing an on-line resize of /dev/mapper/vg_oel6-lv_root to 11272192 (4k) blocks. The filesystem on /dev/mapper/vg_oel6-lv_root is now 11272192 blocks long.
it’s all, enjoy with new size🙂