Vmware CentOS virtual machine root partition disk expansion (based on LVM)

Because the development test machine dev-vhost017 root partition plan is insufficient only 10G, needs to enlarge. (based on LVM)

Turn off dev-vhost017 and then adjust the root partition drive 10G to 50G in vsphere Client

Turn on the virtual machine
Original/Size 10G

[Email protected] ~]# df-hfilesystem            Size used Avail use% mounted on/dev/mapper/vg_centos6-lv_root                      8.3g< c3/>4.0g  3.9G  51%/tmpfs                 939M   12K  939M   1%/dev/shm/dev/sda1             477M   57M  396M  13%/boot

View disk SDA extended to 50G

[[email protected] ~]# fdisk/dev/sdawarning:dos-compatible mode is deprecated. It ' s strongly recommended to switch off the mode (command ' C ') and change display units to sectors (Comman d ' u '). Command (M for help): pdisk/dev/sda:53.7 GB, 53687091200 bytes255 heads, sectors/track, 6527 cylindersunits = Cylinde RS of 16065 * 8225280 = bytessector size (logical/physical): bytes/512 bytesi/o size (minimum/optimal): bytes           s/512 bytesdisk identifier:0x0007ef5b Device Boot Start End Blocks Id system/dev/sda1 * 1 512000 linuxpartition 1 does not end on cylinder BOUNDARY./DEV/SDA2 64 13 9972736 8e Linux lvmdisk/dev/mapper/vg_centos6-lv_root:9135 MB, 9135194112 bytes255 heads, sectors/track, 1  Cylindersunits = Cylinders of 16065 * 8225280 bytessector size (logical/physical): bytes/512 bytesi/o Size (minimum/optimal): bytes/512 bytesdisk identifier:0x00000000disk/dev/mapper/vg_centos6-lv_swap:1073 MB, 1073741824 bytes255 heads, sectors/track its = cylinders of 16065 * 8225280 = bytessector size (logical/physical): bytes/512 bytesi/o Size (minimum/optim   AL): bytes/512 bytesdisk identifier:0x00000000

View LVM Status

[[email protected] ~]# PVs  PV         VG         Fmt  Attr PSize pfree  /dev/sda2 vg_centos6 lvm2  a--  9.51g    0 [[email protected] ~]# VGS  VG         #PV #LV #SN Attr   vsize vfree  vg_centos6   1   2   0 wz--n-9.51g    0 [[email protected] ~] # LVS  LV      VG         Attr       lsize Pool Origin data%  meta%  Move Log cpy%sync Convert  lv_root VG _centos6-wi-ao----8.51g                                                      lv_swap vg_centos6-wi-ao----1.00g

Partition/dev/sda3

[Email protected] ~]# fdisk/dev/sdawarning:dos-compatible mode is deprecated. It's strongly recommended to         switch off the mode (command ' C ') and change display units to         sectors (Command ' u '). C Ommand (M for help): pdisk/dev/sda:53.7 GB, 53687091200 bytes255 heads, sectors/track, 6527 cylindersunits = Cylinder  S of 16065 * 8225280 = bytessector size (logical/physical): bytes/512 bytesi/o size (minimum/optimal): bytes /Bytesdisk identifier:0x0007ef5b   Device Boot      Start         End      Blocks   Id  system/dev/sda1   *           1      512000  linuxpartition 1 does not end on cylinder boundary./dev/sda2        1306     9972736   8e  linux lvm/dev/sda3            1306        6527    41942367+  

[Email protected] ~]# Partprobe

Restart virtual machine format/dev/sda3

[Email protected] ~]# Mkfs.ext4/dev/sda3

LVM expansion

[[email protected] ~]# Pvcreate/dev/sda3 Physical Volume "/dev/sda3" successfully created[[email protected]             ~]# PVs PV VG Fmt Attr PSize pfree/dev/sda2 vg_centos6 lvm2 a--9.51g 0/dev/sda3 LVM2---40.00g 40.00g[[email protected] ~]# Vgextend/dev/mapper/vg_centos6/dev/sda3 (note group name) Volume Group "Vg_c ENTOS6 "Successfully extended[[email protected" ~]# lvextend-l 39.9g/dev/vg_centos6/lv_root/dev/sda3 Rounding si Ze to boundary between physical extents:39.90 GIB Size of logical volume Vg_centos6/lv_root changed from 8.51 GiB (2178  extents) to 39.90 GiB (10215 extents). Logical volume Lv_root successfully resized[[email protected] ~]# resize2fs/dev/vg_centos6/lv_root resize2fs 1.41.12 (17-may-2010) Filesystem at/dev/vg_centos6/lv_root is mounted on/; On-line resizing Requiredold desc_blocks = 1, new_desc_blocks = 3Performing an on-line resize Of/dev/vg_centos6/lv_root t o 10460160 (4k) blocks. The FileSystem ON/dev/vg_centos6/lv_root is now 10460160 blocks long.    [[email protected] ~]# PVs PV VG Fmt Attr PSize pfree/dev/sda2 vg_centos6 lvm2 a--9.51g 0   /dev/sda3 vg_centos6 lvm2 a--40.00g 8.60g[[email protected] ~]# vgs VG #PV #LV #SN Attr vsize vfree VG_CENTOS6 2 2 0 wz--n-49.50g 8.60g[[email protected] ~]# lvs LV VG Attr lsize Pool Ori                                                      Gin data% meta% Move Log cpy%sync Convert lv_root vg_centos6-wi-ao----39.90g Lv_swap vg_centos6-wi-ao----1.00g [[email protected] ~]# df-hfilesystem Size used Avai L use% mounted on/dev/mapper/vg_centos6-lv_root 40G 4.0G 34G 11%/TMPFS 939M 1 2 k 939M 1%/dev/shm/dev/sda1 477M 57M 396M 13%/boot

Vmware CentOS virtual machine root partition disk expansion (based on LVM)