Resize VM Disk

To increase the harddisk of a VM, go to vcenter.psi.ch, select the machine, right click, and select Edit Settings ...

Increase the harddisk size to the value you need to have:

Now connect to the system and change to root.

List block devices:

[root@awi-ci-01 ~]# lsblk
NAME                   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda                      8:0    0   42G  0 disk
├─sda1                   8:1    0  600M  0 part /boot/efi
├─sda2                   8:2    0    1G  0 part /boot
└─sda3                   8:3    0 32.4G  0 part
  ├─vg_root-lv_root    253:0    0   14G  0 lvm  /
  ├─vg_root-lv_var_tmp 253:1    0    2G  0 lvm  /var/tmp
  ├─vg_root-lv_var_log 253:2    0    3G  0 lvm  /var/log
  ├─vg_root-lv_var     253:3    0    8G  0 lvm  /var
  ├─vg_root-lv_tmp     253:4    0    2G  0 lvm  /tmp
  └─vg_root-lv_home    253:5    0    2G  0 lvm  /home

The command will probably not show the correct disk size. For this the VM either needs to be rebooted or you can trigger a re-read of the disksize without a reboot with this command (replace sda with the correct diskname you resized):

echo 1 > /sys/block/sda/device/rescan

Extend partition:

[root@awi-ci-01 ~]# parted /dev/sda
GNU Parted 3.2
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: VMware Virtual disk (scsi)
Disk /dev/sda: 45.1GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name                  Flags
 1      1049kB  630MB   629MB   fat32        EFI System Partition  boot, esp
 2      630MB   1704MB  1074MB  ext4
 3      1704MB  36.5GB  34.8GB                                     lvm

(parted) resizepart 3
End?  [36.5GB]? -0
(parted) print
Model: VMware Virtual disk (scsi)
Disk /dev/sda: 45.1GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name                  Flags
 1      1049kB  630MB   629MB   fat32        EFI System Partition  boot, esp
 2      630MB   1704MB  1074MB  ext4
 3      1704MB  45.1GB  43.4GB                                     lvm

(parted) quit

Resize physical volume:

[root@awi-ci-01 ~]# pvresize /dev/sda3
  Physical volume "/dev/sda3" changed
  1 physical volume(s) resized or updated / 0 physical volume(s) not resized

Now the effective volumes of the machine can be extended as documented Resize System Volumes

2.6 KiB Raw Blame History

Resize VM Disk

2.6 KiB

Raw Blame History