Often there is not enough disk space available on the server, you can increase the size of the disks without losing data. In the control panel, select the server, then Settings -> Configuration. Use the slider to select the desired volume:
Step 1
Once the drive has been enlarged in the control panel, you need to make it available for Ubuntu 14.
Open a terminal with superuser rights (login and password are specified in the server status) and check.
echo 1 > /sys/block/sda/device/rescan
This command scans the current VPS hardware configuration and sends the new hard drive size to the OS.
Step 2
Run the parted utility:
parted
Immediately after starting the utility, you will see the version and service information.
GNU Parted 2.3 Using /dev/sda
Important : By default, our Ubuntu Server 14 VPS has version 2.3 of this software installed. This manual is designed for GNU Parted below 3.0. For versions 3.0 and older, use the following algorithm .
Run the commands in the parted markup interface:
(parted) p
Model: VMware Virtual disk (scsi) Disk /dev/sda: 21.5GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 256MB 255MB primary ext2 boot 2 257MB 10.7GB 10.5GB extended 5 257MB 3220MB 2963MB logical lvm 6 3221MB 10.7GB 7516MB logical lvm
You will receive brief information about the current settings of disks and their partitions. It is necessary to remember the size in the ZZ.ZGB format, in our example it is 21.5GB and the partition number, in our example it is 2 (see the image above).
We run the command to change the partition:
(parted) resize
Partition number? 2
We leave the value ” Start ” by default – press Enter.
Start? [XXXMB]?
Value ” End ” – enter a new size in gigabytes – the value that was remembered earlier. Thus, the system will use all possible space.
End? [YY.YGB]? ZZ.ZGB
Exit the utility command line:
(parted) quit
The following information will be displayed:
Information: You may need to update /etc/fstab.
Step 3
Run fdisk with the name of the disk we fixed in memory as an argument:
fdisk /dev/sda
Next, assign the type and occupied sectors using the n option:
Command (m for help): n
We select the type of partition l – logical, remember the partition number X, created during the execution of the command. Next, we accept the default value – press Enter 2 times.
Select (default p): l
Adding logical partition X
First sector (XXX-YYY, default ZZZ):
Last sector, +sectors or +size{K,M,G} (XXX-YYY, default ZZZ):
We change the type, while indicating the number that we fixed – X:
Command (m for help): t
Partition number (1-X): X
Hex code (type L to list codes): 8e
Note: 8e is a hexadecimal code.
Save changes:Command (m for help): w
Step 4
We inform the kernel of the Linux operating system about the changes:
partx -v -a /dev/sda
... /dev/sda: partition #X added ...
The v key will display detailed information about the execution results, the a key will tell the utility which file to work with.
Step 5
We initialize the section, instead of X we again use the section number that we remembered earlier:
pvcreate /dev/sdaX
Add a physical partition to an existing volume group:
vgextend ubuntu-vg /dev/sdaX
Expanding the logical volume:lvextend -l +100%FREE /dev/ubuntu-vg/root
We expand the file system so that you can work with files on the hard drive:
resize2fs /dev/ubuntu-vg/root
At this point, the disk is expanded and ready for use.
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