Extending Linux Partition in VMWARE ESXI

Reference Guide to extend partition size in Linux hosted on vmware

TASK: Linux (Centos) is hosted in Vmware  , Current size of disk is 10 GB, and we want to expand it to 15 GB.

First turn off the guess linux OS. and take its properties and extend the disk as showed in the image below…

 

Click on EXPAND and it will take some time to complete the operation …

.

once its completed, power ON the guest Linux.

---

 

 

Add a new partition with the free space of the virtual disk.

fdisk  /dev/sda

press n            < To add new partition
press p            < Select type PRIMARY
press 3            < Type number for new part…
(when it will ask for sectors numbers/values, pres Enter twice for default values)
press t            < To change partition type value
press 3           < Select partition number
press 8e         < Type 8e
press w          <type ‘w’ to write changes to disk

at end you will see following message…

The partition table has been altered!

As showed in the image below …

REBOOT THE GUEST OS NOW …

reboot

---

 

after reboot completes, Now, create a new physical volume from the new partition, issue following command two times

pvcreate /dev/sda3
pvcreate /dev/sda3

  Physical volume "/dev/sda3" successfully created

---

 

 

Then extend the existing volume group, you may want to use vgdisplay to list and identify the volume groups you have.

vgdisplay

vgdisplay
--- Volume group ---
VG Name               vg_radius
System ID
Format                lvm2
Metadata Areas        1
Metadata Sequence No  3
VG Access             read/write
VG Status             resizable
MAX LV                0
Cur LV                2
Open LV               2
Max PV                0
Cur PV                1
Act PV                1
VG Size               9.51 GiB
PE Size               4.00 MiB
Total PE              2434
Alloc PE / Size       2434 / 9.51 GiB
Free  PE / Size       0 / 0
VG UUID               MzawqN-X33a-e5AY-QxE4-WFHV-r5mh-IM4MuT

.

Now look at VG NAME value, note it down… (Your might be different)

vgextend vg_radius /dev/sda3

 Volume group "vg_radius" successfully extended

---

 

Now, extend the logical volume, again, use vgdisplay to list and identify the logical volumes you have.

lvextend /dev/vg_radius/lv_root  /dev/sda3

 Extending logical volume lv_root to 13.50 GiB
Logical volume lv_root successfully resized

---

 

And finally, resize the filesystem in the logical volume

resize2fs /dev/vg_radius/lv_root

 resize2fs 1.41.12 (17-May-2010)
Filesystem at /dev/vg_radius/lv_root is mounted on /; on-line resizing required
old desc_blocks = 1, new_desc_blocks = 1
Performing an on-line resize of /dev/vg_radius/lv_root to 3539968 (4k) blocks.
The filesystem on /dev/vg_radius/lv_root is now 3539968 blocks long.

---

---

 

Now check the new DISK SIZE in Action !!! ; ) ALHAMDOLILLAH

df -h

 Filesystem                     Size  Used Avail Use% Mounted on
/dev/mapper/vg_radius-lv_root   14G  897M   12G   7% /
tmpfs                          504M     0  504M   0% /dev/shm
/dev/sda1                      485M   31M  430M   7% /boot

 

 

---

 

 

Regard’s
Syed Jahanzaib