Record the capacity of Centos 6.5 VM disks in Oracle VirtualBox

The default hard drive size for Centos 6.5 VMS created by Oracle VirtualBox is 8 g (not manually adjusted) and now uses 100%, which requires capacity expansion.

[Email protected] ~]# df-h
Filesystem Size used Avail use% mounted on
/dev/mapper/vg_kaola-lv_root 6.5G 6.2G 32M 100%/
Tmpfs 939M 76K 939M 1%/DEV/SHM
/DEV/SDA1 477M 59M 393M 14%/boot
Cm_processes 939M 0 939M 0%/var/run/cloudera-scm-agent/process

1. Copy VMDK to VDI

   Since the disk format chosen when creating the VM is VMDK, the disk is copied in VDI format first:

   C:\Program files\oracle\virtualbox>
   

   
   

   Vboxmanage Clonehd "KAOLA.VMDK" "New-kaola.vdi"--format VDI
   

   Modify Disk to 20G:

   Vboxmanage modifyhd "New-kaola.vdi"--resize 20480

   To view disk information:
   

   [[email protected] ~]# fdisk-l
   
   disk/dev/sda:21.5 GB, 21474836480 bytes
   255 heads, Sectors/track, 2 610 cylinders
   Units = cylinders of 16065 * = 8225280 bytes
   Sector size (logical/physical): bytes/512 bytes
   I/O size (minimum/optimal): bytes/512 bytes
   Disk identifier:0x000490ac
   
      Device boot  ;     start         End       blocks   id  System
   /dev/sda1   *            1          64      512000   83  Linux
   Partition 1 does not end on cylinder boundary.
   /dev/sda2              64         2611    20458496   8e  Linux LVM
   

   
   

2. Download the gparted ISO file, boot the VM and adjust the sda2 partition after booting;

   After adjustment:
   

   [[email protected] ~]# fdisk-l
   
   disk/dev/sda:21.5 GB, 21474836480 bytes
   255 heads, Sectors/track, 2 610 cylinders
   Units = cylinders of 16065 * = 8225280 bytes
   Sector size (logical/physical): bytes/512 bytes
   I/O size (minimum/optimal): bytes/512 bytes
   Disk identifier:0x000490ac
   
      Device boot  ;     start         End       blocks   id  System
   /dev/sda1   *            1          64      512000   83  Linux
   Partition 1 does not end on cylinder boundary.
   /dev/sda2              64         2611    20458496   8e  Linux LVM

   
   

3. View PV VG Information

   [Email protected] mapper]# Pvdisplay
   ---physical volume---
   PV Name/dev/sda2
   VG Name Vg_kaola
   PV Size 19.51 gib/not usable 2.00 MiB
   Allocatable Yes
   PE Size 4.00 MiB
   Total PE 4994
   Free PE 3072
   Allocated PE 1922
   PV UUID Tmcfp1-wtiv-efkn-dfj4-zhno-iga0-iulnou
   
   [Email protected] mapper]# Vgdisplay
   ---Volume Group---
   VG Name Vg_kaola
   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 19.51 GiB
   PE Size 4.00 MiB
   Total PE 4994
   Alloc pe/size 1922/7.51 GiB
   Free Pe/size 3072/12.00 GiB
   VG UUID Jgyrf4-drng-n5gs-m3no-lcbc-mehz-ocewi1

   
   

5. Adjust the LV size

   Free PE 3072

   [Email protected] mapper]# lvextend-l +3072/dev/mapper/vg_kaola-lv_root
   Extending logical Volume Lv_root to 18.71 GiB
   Logical Volume Lv_root successfully resized

   
   

7. Resizing a file system

   [Email protected] mapper]# Resize2fs/dev/mapper/vg_kaola-lv_root
   RESIZE2FS 1.41.12 (17-may-2010)
   Filesystem at/dev/mapper/vg_kaola-lv_root is mounted on/; On-line resizing required
   Old desc_blocks = 1, new_desc_blocks = 2
   Performing an on-line resize of/dev/mapper/vg_kaola-lv_root to 4904960 (4k) blocks.
   The filesystem on/dev/mapper/vg_kaola-lv_root is now 4904960 blocks long.

   
   

9. After adjustment, it is now used as 36%:

   [Email protected] mapper]# df-h
   Filesystem Size used Avail use% mounted on
   /dev/mapper/vg_kaola-lv_root 19G 6.2G 12G 36%/
   Tmpfs 939M 224K 939M 1%/DEV/SHM
   /DEV/SDA1 477M 59M 393M 14%/boot
   Cm_processes 939M 0 939M 0%/var/run/cloudera-scm-agent/process

   
   

Record Centos 6.5 VM disk expansion under Oracle VirtualBox