After expanding the disk space in the control panel, you need to expand it at the operating system level.
Open a terminal as root and type the following commands:
root@Serverspace:~# echo 1 /sys/block/sda/device/rescanCheck the disk information
Using the section and disk utility parted, get information about the sections:
root@Serverspace:~# parted
(parted) p
Model: VMware Virtual disk (scsi)
Disk /dev/sda: %size%GB Memorize disk size %size%GB.
Resize the section using the resizepart command of the parted utility, specifying the section number %partnum%
(parted) resizepart %partnum%As "End" value we use %size% value from the (parted) p output, which you memorized earlier.
End? [XX.X GB]? %Size%GBFinish the work of the utility parted with the command:
(parted) quitAfter that we will get information about the need to make changes in the fstab:
Information: You may need to update /etc/fstab.Now we will use the fdisk section utility:
After receiving the list of sections with the -l parameter, select the section we need (in our example /dev/sda)
root@Serverspace:~# fdisk -l
root@Serverspace:~# fdisk /dev/sdaCreate a section- section type (L) - logical
Command (m for help): n
Select (default p): l
Adding logical partition %lpart%Memorize the section number you created during the command (in the example it will be %lpart%).
Accept the value by default - press Enter twice:
First sector (XXX-YYY, default ZZZ):
Last sector, +sectors or +size{K,M,G} (XXX-YYY, default ZZZ):Change the section type, write the number of the section you memorized earlier (in the example it was %lpart%).
Command (m for help): t
Partition number (1-X): %lpart%
Hex code (type L to list codes): 8e Command (m for help): wnform the kernel about the changes:
root@Serverspace:~# partx -v -a /dev/sdaIn the response you’ll see a line. /dev/sda: partition %lpart% added
Initialize the section, instead of %lpart% we again use the section number that we memorized earlier.
root@Serverspace:~# pvcreate /dev/sda%lpart%
Physical volume "/dev/sda%lpart" successfully createdAdd a physical section to an existing volume group:
root@Serverspace:~# vgextend ubuntu-vg /dev/sda%lpart%
Volume group "ubuntu-vg" successfully extendedExpand the logical volume with lvextend.
root@Serverspace:~# lvextend -l +100%FREE //dev/ubuntu-vg/root
Extending logical volume root to YY.ZZ GiB
Logical volume root successfully resizedExpand the file system. with the utility resize2fs.
root@Serverspace:~# resize2fs /dev/ubuntu-vg/root
