mirror of
https://github.com/PhyllomeOS/wiki.git
synced 2024-11-05 19:51:26 +00:00
83 lines
2.3 KiB
Markdown
83 lines
2.3 KiB
Markdown
---
|
||
title: Resize an existing virtual disk
|
||
description:
|
||
published: true
|
||
date: 2022-01-20T10:54:10.378Z
|
||
tags:
|
||
editor: markdown
|
||
dateCreated: 2021-11-13T11:41:29.087Z
|
||
---
|
||
|
||
> *Section under construction*
|
||
{.is-warning}
|
||
|
||
# Resize a disk
|
||
|
||
## Introduction
|
||
|
||
As per the software description : "*qemu-img allows you to create, convert and modify images offline. It can handle all image formats supported by QEMU.*"
|
||
|
||
Expanding a new disk implies creating a new blank image of the desired size and "copy" the existing disk into this new bigger image using virt-resize.
|
||
|
||
> In-place expansion is not supported, which mean than a copy of the disk to be expanded has to be created
|
||
{.is-info}
|
||
|
||
## Installation
|
||
|
||
* On Fedora-related distributions, `virt-resize` is provided by the `guestfs-tools` package :
|
||
|
||
```
|
||
# dnf install guestfs-tools
|
||
```
|
||
|
||
## Usage
|
||
|
||
* **Create a new disk image**
|
||
|
||
In-place expansion is not supported. A new disk of the desired size has to be created.
|
||
|
||
Use the following command to create `phyllome_but_bigger.img`, a disk of 15 GiB
|
||
|
||
```
|
||
$ qemu-img create -f raw phyllome-bigger.img 15G
|
||
```
|
||
|
||
* **Expand the root partition**
|
||
|
||
> This command only works if the root partition is located on vda3 and if the disk image filesystem uses EXT4.
|
||
{.is-warning}
|
||
|
||
This command bellow requires root privileges.
|
||
|
||
```
|
||
# virt-resize --expand /dev/vda3 phyllome.img phyllome_but_bigger.img
|
||
|
||
[ 0.0] Examining phyllome.img
|
||
**********
|
||
|
||
Summary of changes:
|
||
|
||
/dev/vda1: This partition will be left alone.
|
||
|
||
/dev/vda2: This partition will be left alone.
|
||
|
||
/dev/vda3: This partition will be resized from 5G to 15G. The
|
||
filesystem ext4 on /dev/vda3 will be expanded using the ‘resize2fs’
|
||
method.
|
||
|
||
**********
|
||
[ 2.1] Setting up initial partition table on phyllome-bigger.img
|
||
[ 12.9] Copying /dev/vda1
|
||
[ 13.1] Copying /dev/vda2
|
||
[ 13.4] Copying /dev/vda3
|
||
100% ⟦▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒⟧ 00:00
|
||
[ 38.3] Expanding /dev/vda3 using the ‘resize2fs’ method
|
||
|
||
Resize operation completed with no errors. Before deleting the old disk,
|
||
carefully check that the resized disk boots and works correctly.
|
||
```
|
||
|
||
* **Inform your virtual machine to use the new disk**
|
||
|
||
*To-do*
|