Linux resize disk. And this may not be as easy as you.
Linux resize disk. To make it clear and concise, here's an updated step-by-step guide using Ubuntu as an example. Not all filesystems have resize support. Mar 1, 2022 · How to resize/extend a disk partition, logical volume and filesystem of any Linux VM using built-in tools and without the need of a reboot. See here if you’re instead trying to do the opposite and shrink an LVM volume. How to expand disk capacity for vmware linux virtual machine First, make a clone of the vmware linux virtual machine. Nov 28, 2020 · Resizing a logical volume in Linux is not very difficult but it can be tricky if the root is under an extended partition. Mar 11, 2024 · If you have Ubuntu Linux virtual machines, it is highly likely that you will need to expand your virtual hard disk and increase the partition in the guest OS. Sep 5, 2024 · Disk resizing is a common task in system administration, especially when dealing with partition management and storage expansion. See man pvresize. In this article, you'll learn how to resize a partition and filesystem on GNU/Linux using the CLI tools 'parted' and 'resize2fs'. Here's how to create, delete, and change Linux partitions with Cfdisk. Refer the following figure: When you click on resize, a window will open where you can easily drag and resize your partition. I've tried echo 1 > Aug 27, 2024 · Resizing a disk partition in Ubuntu without using LVM. In our example we will use Debian, but this method can be used on other Linux distributives also (Ubuntu, RedHat). Jun 17, 2018 · For the LVM instructions above, and it could well have changed, it's sudo lvresize -L 500G -r [volume] and the size is the new size, not the space being added. Explore practical examples and step-by-step instructions to effectively manage storage space on your Linux system. Over time, your storage needs may change, and you might find that a particular partition is running out of space while others have excess. 04 LTS virtual machine (VM) on Hyper-V and now I am running out of disk space and I need to increase the filesystem space. However, resizing the root partition is a critical and potentially risky operation, as it involves modifying Apr 13, 2022 · I created a Ubuntu 20. Why Partitioning Matters […] Jun 23, 2017 · In such a scenario we often think, how to increase disk size in Linux when VMware disk size is increased? or how to increase mount point size when vdisk size is increased? or steps for expanding LVM partitions in VMware Linux guest? or how to rescan disk when vdisk expanded? We are going to see steps to achieve this without any downtime. KVM uses QEMU which supports several image types, among them raw, cow, qcow, qcow2, vmdk, vdi among others available. And this may not be as easy as you Tagged with linux, todayisearched, todayilearned. For example: fdisk /dev/vda # fdisk /dev/vda Welcome to fdisk (util-linux 2. (As of this writing, the Linux 2. Make sure that you have/make a backup before carrying out these steps. Sometimes I need to extend or add disk space to my running VM (guest) to satisfy growing software requirements. Resize, Move, Expand via GParted For any other Linux system without Gnome ‘Disks’ tool, the popular gparted tool is available for choice. Ideal for GParted is a free partition editor for graphically managing your disk partitions. This guide covers resizing ext2, ext3, or ext4 file systems by exploring necessary prerequisites like backing up data and checking file system integrity with `e2fsck`. Extend, shrink, and increase partition size with FDISK, GParted, and more. You can use this resizing process in the following environments: Linux distributions: Red Hat Enterprise Linux (RHEL) 7 or later Ubuntu 18. This allows users to create partitions from more than one disk and allows them to extend the filesystem size online. you have a 500G partition and want to add 200G it would be -L 700G. Both methods are easy and straightforward. Something like Linux磁盘分区调整：resize命令详解 1. By default, the Ubuntu installer offers to use logical volumes (LVMs) for the operating system, so we will study how to extend the LVM partition. Master thin provisioning today! Most of the disk is in an LVM partition already, which lvm calls a physical volume. After having resized a virtual disk of a VM Guest. Aug 27, 2025 · Oracle Linux: How to do a Online Resize of a LVM Volume Filesystem (Doc ID 2272697. This involves both VMware-related operations and Linux command-line instructions to resize the partition and the filesystem. ) Jun 18, 2025 · Applies to: ️ Linux VMs ️ Flexible scale sets This article covers expanding operating system (OS) disks and data disks for a Linux virtual machine (VM). Jul 28, 2025 · This guide will show you how to grow ext2/3/4 or XFS File System without LVM at runtime. 1) Last updated on AUGUST 27, 2025 Applies to: Linux OS - Version Oracle Linux 7. As you can see my boot partition is full. Apr 21, 2022 · In this article you will learn how to resize Linux partition from Command Line on virtual machine (VMware, Proxmox, AWS, . Follow this step-by-step guide to safely manage disk space on your virtual machine! Mar 26, 2022 · How do you make changes to and resize hard drive partitions without breaking your system and losing all of your files? There are various ways to use Linux to manage partitions that are either empty, contain personal files, or Linux system files. 2). Follow our step-by-step guide to expand your VM's hard drive on Linux systems. Is it possible to find a solution in this case using fdisk? Moreover the partition has a filesystem. And after resizing the / partition, you'll need to forcefully update the "in-memory" partition table with blockdev / partprobe / , or the simplest and safest way reboot. Jul 31, 2025 · The easiest and safest way to extend a Linux partition is to use the “GParted” application. Dec 11, 2023 · Learn how to extend the size of an existing virtual disk in Linux VMs and how to adjust disk partition size manually after that. Unmounting means that you stop using the filesystem, and remove the mapping to the mount point. To resize the disks, you'll use logical volume management (LVM) on Linux. Apr 21, 2021 · Resize the filesystem on the Logical Volume after it has been extended to show the changes. You changed the size of the virtual disk then? And fdisk or whatever is telling you it's not changed in size? Is it fdisk? Maybe you're looking at dmesg output? Alpine is a busybox distro, no? Does it have fdisk? dmesg? Or what tools are we talking about here? Anyway, if it's regular partitions you'll need to first resize the partition (s) and then resize the filesystem (s). With it, you can resize (either shrink or expand), and move partitions as you want. Often this is even possible while the filesystem is mounted. By default installation, linux virtual machine (Fedora, RHEL or CentOS) has two partitions, one for swapping, and the other one is a lv partition. The steps are the same for Linux and Windows. This could be a root partition configured with ext2/3/4 or XFS Jul 12, 2023 · In this blog post, we will show you how to extend existing volume group (VG) size in Linux using vgextend command step-by-step. Before starting resizing the partitions, be sure to make a backup copy of your data Apr 2, 2019 · Here we show you how to expand an LVM volume or partition in Linux by first resizing logical volume followed by resizing the file system to take advantage of the additional space. You can use the pvs or pvdisplay commands to show stats on the physical volumes and lvs or lvdisplay to see information on all of the logical volumes. Sep 22, 2020 · This PragmaticLinux tutorial provides you with step-by-step instructions on how to increase the disk size of your VirtualBox virtual machine. You can find it on the file Mar 8, 2019 · As far as I know to resize the partition and to leave data intact one should start the new partition from the same disk sector as before. The following text shows how this can be done in Linux and Windows. E. Feb 24, 2020 · Enlarge a disk and partition of any Linux VM without a reboot Some days ago, one of our Performance Analyzer customers asked in a workshop how we handle the data growth over time and how they can resize the data partition. Resize the XFS filesystem by using the xfs_growfs command. First resize the partition using fdisk or whatever, then run pvresize /dev/partition . However, if you need to resize partitions that contain the operating system files for either macOS or Windows, that's better done using tools geared Jun 25, 2012 · I want to shrink space from (/dev/sdb) and extend to (/dev/sda1) partition which is my primary partition and have all linux boot, kernel etc files. This comprehensive guide will cover all key aspects of working with partitions in Debian and Ubuntu. Mar 3, 2022 · Learn to sparsify, expand, or shrink qcow2 disk images using the NBD protocol on Linux efficiently. By understanding the fundamental concepts, following the proper usage methods, and adhering to common and best practices, you can resize partitions safely and efficiently. What is XFS and Why Extend It? […] Sep 5, 2025 · In this post, we will learn how to extend lvm partition with lvextend command in linux. 6 kernel supports on-line resize for filesystems mounted using ext3 and ext4. 📥 Master Linux KVM virtualization from I can resize a . Aug 8, 2025 · In the Linux ecosystem, the root partition serves as the foundation that holds the core system files and directories. This article explores five free partition managers for Linux that offer robust features and user-friendly interfaces. Mar 18, 2024 · A quick and practical guide to resizing the virtual hard disk in VirtualBox. Jan 6, 2025 · After resizing a virtual disk of a VM Guest. When wanting to shrink Btrfs file systems (as of SUSE Linux Enterprise Server 12, YaST only supports growing Btrfs file systems). Even a /boot partition and swap are optional. Aug 27, 2024 · To enlarge a disk in a VMware Linux virtual machine, you'll need to follow a multi-step process. (Modern Linux 2. Detailed steps for safely expanding or reducing partitions are also discussed, ensuring optimized storage management in dynamic environments. Jul 29, 2025 · Resizing partitions without losing data is a crucial skill for Linux users, as it allows for efficient disk space management while preserving important data. Nov 27, 2013 · Learn how to resize (extend and reduce) non-LVM partition and filesystem on CentOS 6 Linux with fdisk and resize2fs without loosing your data. How can I rescan the drives without rebooting the server? Dec 17, 2024 · The lvresize command is a powerful utility in Linux used for resizing logical volumes within the Logical Volume Manager (LVM) infrastructure. After having resized a volume from a network-attached storage. On the other hand our goal was, that no customer needs to oversize the data Sep 21, 2025 · Learn how to resize the root partition in Linux without unmounting. Jun 18, 2025 · In the world of Linux, managing disk space is a crucial task, especially as your data storage needs evolve. With GParted you can resize, copy, and move partitions without data loss, enabling you to: Mar 26, 2025 · When working with an Azure Linux Virtual Machine (VM), you may need to expand the root disk (OS disk) or data disk to accommodate growing storage requirements. Detailed steps for managing ext4 filesystems safely. You can create, destroy, resize, move and copy ext2, linux-swap, FAT, FAT32, and reiserfs partitions. Lately I've been usin $ Create Virtual Disk Rather than extending an existing virtual disk, you can create a new virtual disk and associate it with the virtual machine to provide the extra space. Troubleshoot common issues and discover best practices. It will only update the MBR or GPT information where partition lies and its size. 0 and later Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal This document helps in a scenario which there is a single virtual/SAN disk that is going to increase to add more space to LVM. 5. There come times when you might need to resize the root partition, such as when you run out of disk space or when you want to re - allocate resources more efficiently. 23. (Logical Volume Management) can be a straightforward process, but it requires careful steps to ensure data integrity. It is important that you backup your content before you attempt to change size of partition. You should also be able to extend the existing partition (which is a "physical volume"). This article covers expanding either OS disks or To resize a partition on Debian 12, either use the “fdisk” command utility or install the “GParted” application from Debian’s default repository. Apr 27, 2012 · So first you will have to use GParted to resize a partition above or below your 63GB partition. This blog will provide a comprehensive guide on how to resize Linux partitions without data loss, covering fundamental concepts, usage methods, common practices, and best practices. The partition size will be changed together with the filesystem size. It helps create space for new operating systems, reorganizing disk usage and copying data to new hard disks. Jul 27, 2024 · This article covers steps to resize primary partition (non-lvm) which can be dangerous and can leave your Linux system in an unusable broken state. Taking the time to plan out partitions and allocate disk space appropriately can provide tremendous long term benefits. x. 💡 Note: Make ensure that you have taken […] Mar 12, 2025 · Learn disk management for Linux with essential commands, GUI tools, and best practices. Graphical tools like gparted and gnome-disk-utility can be used only after setting up a graphical environment. First, you need to increase the size of the virtual hard disk on your hypervisor. When there is no GUI available, the commands fdisk and resize2fs can be used to extend your Ubuntu partitions instead. Jun 11, 2025 · Resizing partitions in Ubuntu using the command line can be a powerful way to manage your storage effectively. Once the free space is made available, resize your 63GB partition just like the above covering that free space. vdi --resize --size 10240 Feb 22, 2021 · Managing partitions in Linux can be confusing. img disk to 1M which definitely breaks the disk image. Oct 10, 2023 · In this article, we will list the best command line utilities as well as GUI applications that will help you to partition and manage disk partitions in Linux. Method 1: Using the Virtual Media Manager in VirtualBox VirtualBox 6 added a graphical option for resizing virtual disks. Dec 27, 2023 · Properly partitioning your hard drive is one of the most important steps when installing or setting up Linux. The next expected steps for Linux system are: extend the partition: delete and create a larger one with fdisk ext This section describes how to increase the size of the default logical volume VolGroup00-LogVol00 mounted at the root " / " directory of a guest vServer. Resizing disk partitions in Ubuntu allows you to adjust the size of your partitions according to your current requirements without Apr 2, 2023 · I am trying to resize my primary/boot partition to use the added 30GB (virtual machine on Proxmox). I am fairly new to all this so, I'm following the answe Jul 1, 2022 · Here learn how to resize an LVM partition in Linux. Finally, verify the size of your extended partition. Learn how to resize a partition in Linux using various methods like GParted, fdisk, parted, and more. 04 or qm command You can resize your disks online or offline with command line: qm resize <vmid> <disk> <size> exemple: to add 5G to your virtio0 disk on vmid100: qm resize 100 virtio0 +5G For virtio disks: Linux should see the new size online without reboot with kernel >= 3. Optimize storage and partitions for maximum performance. Therefore, it is highly recommended that you take a backup of the Sep 24, 2021 · Resizing a virtual Linux system partition online Let’s say you just set up a home media server, and you got all the configs working, and you decide, this is it! On Linux I used to resize MBR partitions using fdisk, even on live filesystems, and then issue a resize2fs/pvresize/ (depending on fs type) to get the new space allocated. Jul 23, 2025 · LVM allows you to create, resize or delete partitions on a running Linux system without requiring any reboot. Resizing partitions is documented in the Storage Guides for Red Hat Enterprise Linux (RHEL). In this guide, I will walk you through the process of Jan 31, 2019 · Learn how to resize a Linux partition, either extend or shrink, using built-in tools and commands. Dec 10, 2017 · How to extend a disk partition (logical volume) with unallocated disk space using native tools in Linux (CentOS, RHEL, Ubuntu Debian & more). Jul 18, 2025 · How can I extend / increase / grow a virtual Disk in KVM?. Changes will remain in memory only, until you decide to It can be used to enlarge or shrink an unmounted file system located on device. [ Free online course: Red Hat Enterprise Linux technical overview. After deleting the partition and creating it again using cfdisk - cfdisk shows one big partitioned area (which would be fine with me) and as filesystem type only "Linux" Sep 23, 2025 · Applies to: ️ Linux VMs ️ Flexible scale sets In this article, you'll learn how to resize data disks that use Azure Disk Encryption. To shrink Btrfs file systems, YaST only supports growing Btrfs file systems After resizing a volume from a network-attached storage After resizing partitions manually with fdisk/parted But remember, resizing file systems involves risks that potentially could lead to data loss. By using the fdisk and resize2fs commands, you can easily extend or shrink partitions, enabling you to make the most efficient use of your available disk space. Dec 27, 2023 · Need more disk space for your Linux system? Extending an XFS filesystem is a simple and safe process with the right commands. Apr 25, 2023 · Learn how to resize a partition in a Linux VM using fdisk. ] Wrap up You can extend any other partition with the steps shown. Learn how to resize partitions and LVM volumes using the Linux resize command. Тhis example is applicable for increase only for NON LVM partitions. First, search for and install ‘GParted’ from Ubuntu Software, App Center, or your system package manager. Jun 9, 2025 · In the world of Ubuntu and Linux in general, disk partitioning plays a crucial role in managing storage space effectively. Any idea to make the resize safer? Feb 5, 2017 · Follow these simple steps to resize a Virtual machine disk (vmdk) and then extend the volume using LVM. To check for free space, run the cfdisk command and see if it lists free space. Resizing a Partition with fdisk | Storage Administration Guide | Red Hat Enterprise Linux | 7 | Red Hat DocumentationUnmount the device: umount /dev/vda # umount /dev/vda Copy to ClipboardCopied!Toggle word wrapToggle overflow Run fdisk disk_name. Apr 27, 2022 · You are right about the partition != filesystem part. If the filesystem is mounted, it can be used to expand the size of the mounted filesystem, assuming the kernel supports on-line resizing. After having manually resized partitions (for example by using fdisk or parted) or logical volumes (for example by using lvresize). Running out of space on critical file systems can cause serious issues, so knowing how to resize file systems in Linux is an essential skill. Note: you probably can't convince the kernel to notice first the increased disc size, and if you can, then after modifing the partition table, you'll need to convince the kernel to re-read the partition Nov 29, 2023 · I am trying to extend the disk space on an AlmaLinux server (running on a VM), this is a live email server, so I really can't mess this up. In Linux (UNIX/MAC OS), mounting a partition refers to using the file system and mapping it to the mount point (in your case /). So even if you make serious mistake during the process, you still have all your data. Dec 5, 2019 · Removing or creating a partition doesn't remove a data or a filesystem on a disk. Jan 7, 2020 · Hi Guys, I would like to increase the size of my VM 20go more to achieve the total of 52go ,how can i deal with it ? , there's my configs screens : Thank you in advance . The steps apply to multiple scenarios. This guide walks you through increasing the disk size from the Azure portal and resizing partitions within the Linux VM. Learn to effectively manage your Linux system's disk space with `resize2fs`. Will the resizing with fdisk damage filesystem and data? VMware allows to extend the size of a virtual disk online - when the VM is running. To make space for another partition after the filesystem, it can be shrunk according to the free space within it. Conquer disk space without losing data. If it is a physical disk (not LVM, you can check it with lvdisplay), then you need two steps: Jul 22, 2022 · Learn how to resize disk partitions in Linux using some of the actively maintained open-source partitioning tools currently available. So check the steps below to extend root filesystem using LVM in Linux. ). (Linux instances only) If you are using logical volumes on the Amazon EBS volume, you must use Logical Volume Manager (LVM) to extend the logical volume. After that you should be able to resize the filesystem on it with the corresponding filesystem-specfic tool (the tool should let you know whether the filesystem can be May 21, 2023 · Oracle Help Center Learn Configure Logical Volumes on Oracle Linux Oracle Base Article Linux Logical Volume Management Blog Post How to Shrink an LVM Volume Safely on Linux Man page df Man page lsblk Man page pvcreate Man page fdisk Man page lvmdiskscan Man page lvs Man page vgs Man page vgextend Man page lvextend Man page lvreduce Man page Mar 23, 2012 · Edit: Cfdisk showed a small free space unpartitioned space, then the partition (flagged as "boot" and Linux/ext3) and then the rest of the unpartitioned space. The lvm partition mount as /, and cannot be A filesystem can be grown to make use of the free space after its partition. Managing disk space is one of the key responsibilities of a Linux administrator. Whether you need to resize, create, or format partitions, these tools provide comprehensive solutions for efficient disk management in Linux environments. 6 Windows should see the new size online without reboot with last virtio Nov 22, 2014 · How can I resize partitions from the command line? I've heard of GParted, but I don't want to use a GUI program. Jul 21, 2023 · Easy Guide to Resizing Linux Partitions Using GParted Disk space crunch? Allocated way too much space to home partition (/home) and now wanting to shift some of that space to root partition (/) or … Mar 11, 2024 · Resizing a partition in Linux is a powerful operation that allows you to adapt your disk space allocation to suit your needs. It’s a graphical tool to resize partitions visually. It describes methods . In this beginner‘s guide, I‘ll walk you through step-by-step how to grow XFS partitions and resize XFS volumes on Linux to make use of available storage. Like many other customers, they want to make sure that the disks are not filling up anytime soon. Here's how to do that. This guide should work for most distros, including Ubuntu, Debian, Fedora, RedHat, CentOS, Arch Linux, and more! Learn how to resize partitions in Linux with this step-by-step guide, simplifying disk space management and ensuring efficient system performance. $ cd /u01/VirtualBox/ol6-112/ $ VBoxManage createhd --filename ol6-112b. Nov 6, 2023 · Introduction to parted command parted is a command-line tool in Linux for disk partitioning and partition resizing. How to Resize Linux Partition: Shrink & Extend Partition Guide Discover the ultimate guide to resizing Linux partitions. It is also possible to resize a Jul 23, 2025 · Managing partitions in Linux is important for organizing storage space effectively. You should see that there is plenty of free space in the physical volume. There are other posts on this operation, but I am not quite Nov 6, 2023 · Resizing your Linux partition can be a bit tricky, especially for new users, especially when you're using a dual-boot setup. The default virtual hard disk size for the OS is typically 30 GB on a Linux VM in Azure. Jul 13, 2023 · Parted is a renowned command-line utility designed to facilitate the management of hard disk partitions in a user-friendly manner. 13. . Sep 6, 2021 · Learn how to increase VirtualBox disk size via GUI or command line. Aug 29, 2024 · Sometimes, you need to resize your partitions on Linux. It provides flexibility in storage management by allowing logical volumes to be extended or reduced in size without significant hassle. This blog post will provide you with a detailed understanding of Linux partition Mar 14, 2025 · 2. 6 kernels will support on-line resize for file systems mounted using ext3 and ext4; ext3 file systems will require the use of file systems with the resize_inode feature enabled. Sep 3, 2023 · After resizing the disk, you may need to prompt Linux to recognize the additional free space. What would be best risk free way to do this without losing my data on primary drive (/dev/sda1) ?? fdisk or 'dd' command or 'mount and umount' ? Dec 12, 2012 · Increase disk space by expanding the hard disk, creating a new partition, expanding the volume group and logical volume and then resizing the filesystem. 简介 在使用Linux操作系统时，经常会遇到需要调整磁盘分区大小的情况。 例如，当我们需要扩展一个分区的空间以容纳更多的数据时，就需要使用resize命令来调整分区的大小。 Aug 31, 2011 · I have a CentOS 5 VM and I've just increased the VM disk from 10G to 20G, but I cannot get fdisk to see the new disk size without a reboot. Creating partitions For Alpine Linux, only the (/) root partition is mandatory. For instructions about how to do this, see the Extend the LV section in the article How do I use LVM to create a logical volume on an EBS volume's partition?. It’s a crucial tool for system administrators and users who need to manage disk space efficiently in Linux environments. I personally use KVM for all Linux virtualization projects. Dec 17, 2024 · The resize2fs command is a utility for resizing ext2, ext3, and ext4 filesystems. You can add data disks to provide more storage space, and you can also expand an existing data disk. LVM then divides up the space from physical volumes into logical volumes. Resizing partitions allows you to make the most of your available disk space, either by increasing the size of a partition to accommodate more data or decreasing it to free up space for other partitions. You then can Nov 19, 2020 · How to enlarge VirtualBox disk size I will show you how to resize disk in VirtualBox graphically and via command line (for Linux geeks or experienced users). Jun 22, 2015 · I frequently expand drives on my VMs. fpnqvdpcpdeynhuxh8ody0kj5upjxssbyf4il