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Old 04-27-2009
forte712 forte712 is offline
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Join Date: Apr 2009
Posts: 2
Help with resizing partitions

Hi

First post

I have recently used Acronis (Backup software for data backup and disaster recovery in Windows and Linux - Acronis) to create identical systems that I need to build.
Everything works OK, but one of the machine has a bigger harddisk (250G) than the one I used to create the backup image (I think it was 180G).
When I applied the backup image to that harddisk, everything works fine, but `df -a` only shows 180G.
When I run `fdisk -l` it does say the size is 250G.
The machines run on CentOS 5.2 and here are some info:


Code:
# df -a
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                     187150052   3169204 174320844   2% /
proc                         0         0         0   -  /proc
sysfs                        0         0         0   -  /sys
devpts                       0         0         0   -  /dev/pts
/dev/sda1               101086     12210     83657  13% /boot
tmpfs                  1025204         0   1025204   0% /dev/shm
none                         0         0         0   -  /proc/sys/fs/binfmt_misc
sunrpc                       0         0         0   -  /var/lib/nfs/rpc_pipefs

# fdisk -l

Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 24321 195254010 8e Linux LVM


LVM:

Code:
lvm> pvdisplay
  --- Physical volume ---
  PV Name               /dev/sda2
  VG Name               VolGroup00
  PV Size               232.71 PB / not usable 128.00 PB
  Allocatable           yes
  PE Size (KByte)       32768
  Total PE              3513503756
  Free PE               3513497798
  Allocated PE          5958
  PV UUID               m2sZJE-t8Dl-d4kk-DpMY-p2Px-FDgn-dHxKtv


Code:
lvm> vgdisplay
  --- Volume group ---
  VG Name               VolGroup00
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  5
  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               104.71 PB
  PE Size               32.00 MB
  Total PE              3513503756
  Alloc PE / Size       5958 / 186.19 GB
  Free  PE / Size       3513497798 / 104.71 PB
  VG UUID               JOfhL1-ObNO-EebF-zwBQ-W9Ei-GGCL-zrJSbe

I would like to make use of that extra space. I know I need to extend the partition, but not sure on what steps to take. As it is a potentially dangerous operation I would like to get some advice on how to do it properly.

I hope I can get some help regarding this matter.

Thank you for your help and sorry for the long post.

Last edited by Yogesh Sawant; 04-27-2009 at 07:49 AM.. Reason: added code tags