Increasing the Amount of Disk Space Available in Debian 8

After increasing the disk in the control panel, you need to make available to the operating system:

Open a terminal (see connection instructions ) as root and enter the following commands:
root@Debian8x64:~# echo 1 > /sys/block/sda/device/rescanRun the parted utility:
root@Debian8x64:~# partedNext, execute the commands in the parted utility interface: Remember the disk size ZZ.ZGB
(parted) p
Model: Virtual disk (scsi)
Disk //sda: ZZ.ZGB

(parted) resizepart 2

If you do not have the “resizepart” command, then you are using a previous version of the “parted” utility, then you need to use the following instruction .

The value “End” – enter the new disk size in gigabytes – the value from the output of (parted) p, which we remembered earlier.

End? [YY.YGB]? ZZ.ZGBExit parted: The
(parted) quitfollowing information will be displayed:

Information: You may need to update /etc/fstab.

Run fdisk:
root@Debian8x64:~# fdisk /dev/sdaNext, execute commands in the interface of the fdisk utility:
Create a partition:
Command ( for help): nSelect the partition type – logical (L)
Select (default p): l

Adding logical partition X

Remember the partition number created during the execution of the command (in the example it is indicated as X)
Accept the default values ​​​​- press Enter twice: Change the partition type, while specifying the partition number that we remembered earlier (in the example it is indicated as X ) changes: In the displayed response, we see the line
First sector (XXX-YYY, default ZZZ):
Last sector, +sectors or +size{K,M,G} (XXX-YYY, default ZZZ):

Command (m for help): t
Partition number (1-X): X
Hex (type L to list codes): 8e
Command (m for help): w

root@Debian8x64:~# partx -v -a /dev/sda

/dev/sda: partition #X added

We initialize the section, instead of X we again use the section number that we remembered earlierroot@Debian8x64:~# pvcreate /dev/sdaX

Physical volume "/dev/sdaX" successfully created

Add a physical partition to an existing volume group:root@Debian8x64:~# vgextend  /dev/sdaX

Volume group "debian" successfully extended

Expanding a logical volumeroot@Debian8x64:~# lvextend -l +100%FREE /dev/debian/root

Extending logical volume root to YY.ZZ GiB
Logical volume root successfully resized

Expanding the file systemroot@Debian8x64:~# resize2fs /dev/debian/root



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