Solve that there is no tool available to adjust the disk size via “gpt”

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Have encountered an error message There is no tool to resize the disk with “gpt” Trying to expand GPT partition in Linux system? I received this error message today when trying to expand a Cinder volume in an OpenStack environment. The operating system I am running is CentOS7. Extend the Cinder volume using our previous article “How to resize/extend Cinder volume in OpenStack”.

I expanded the disk to 50GB But the available capacity is still 20GB.

# lsblk /dev/vdc
NAME   MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vdc    253:32   0  50G  0 disk
└─vdc1 253:33   0  20G  0 part /data

Resolve There is no tool to resize the disk with “gpt” We need to install the gdisk package. This package is required for gpt partition management.

Install Disk Pack the following commands,

--- CentOS / RHEL / Fedora ---
$ sudo yum -y install cloud-utils-growpart gdisk

--- Ubuntu / Debian ---
$ sudo apt install cloud-guest-utils gdisk

After installing the gdisk tool, you should now be able to use growpart to expand the size of the disk.

$ sudo growpart /dev/vdc 1
CHANGED: partition=1 start=2048 old: size=41938944 end=41940992 new: size=104855518 end=104857566

Confirm size growth:

$ sudo lsblk  /dev/vdc
NAME   MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vdc    253:32   0  50G  0 disk
└─vdc1 253:33   0  50G  0 part /data

Then, I can expand the file system to use the entire available space.

$ sudo xfs_growfs /data
meta-data=/dev/vdc1              isize=512    agcount=4, agsize=1310592 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0 spinodes=0
data     =                       bsize=4096   blocks=5242368, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal               bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data blocks changed from 5242368 to 13106939

Verify the updated configuration.

$ df -hT /data
Filesystem     Type  Size  Used Avail Use% Mounted on
/dev/vdc1      xfs    50G   17G   34G  33% /data

We have successfully resolved There is no tool to resize the disk with “gpt” I encountered an error message when trying to use growpart to expand a Linux partition.

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