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[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (How to Increase Disk Size of Your Existing Virtual Machines in VirtualBox)
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[#]: via: (https://itsfoss.com/increase-disk-size-virtualbox/)
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[#]: author: (Dimitrios Savvopoulos https://itsfoss.com/author/dimitrios/)
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How to Increase Disk Size of Your Existing Virtual Machines in VirtualBox
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======
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Here’s the scenario you may come across sooner or later.
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You installed one or more operating systems in [VirtualBox][1]. While creating those virtual operating systems, you also created virtual hard disks for them in VirtualBox.
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You specified the maximum size of the virtual disk to say 15 or 20 GB but now after using it for some time, you realize that your virtual machine is running out of space.
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While [there are ways to free up disk space on Ubuntu][2] and other operating systems, a more robust way of handling the situation is to increase the disk size of your virtual machines created in VirtualBox.
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Yes, you can enlarge the virtual hard disk in VirtualBox even after creation. Although this is a safe and tested procedure, it is highly recommended to create a backup of your virtual machine before you perform such an action.
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### How to enlarge VirtualBox disk size
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![][3]
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I will show you how to resize disk in VirtualBox graphically and via command line (for Linux geeks). Both methods are easy and straightforward.
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#### Method 1: Using the Virtual Media Manager in VirtualBox
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VirtualBox 6 added a graphical option for resizing virtual disks. You can find it at the file tab of VirtualBox home page.
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Go to _**File->Virtual Media Manager**_:
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![][4]
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Select one of your virtual machines in the list and use the “Size” slider or type the size value that you need. Once done click “Apply”.
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![][5]
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Keep in mind that though you increased the size of your virtual disk, the **actual partition size remains the same if your space is dynamically allocated**.
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#### Method 2: Increase VirtualBox disk space using Linux command line
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If you are using a Linux operating system as a host, open the terminal and type the following command to resize VDI:
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```
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VBoxManage modifymedium "/path_to_vdi_file" --resize <megabytes>
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```
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The resize process should finish right after you click the enter button to execute the command.
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Note
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The commands **modifyvdi** and **modifyhd** of earlier versions of VirtualBox commands are also supported and mapped internally to the **modifymedium** command.
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![][6]
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If you are not sure where your virtual machines are saved, you can find the default location from the VirtualBox home page by clicking on **Files -> Preferences** or by using the keyboard shortcut **Ctrl+G**.
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![][7]
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#### Conclusion
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Personally, I prefer to use the terminal on every Linux distribution that I use for expanding disk, the graphical option is a very handy addition to the latest VirtualBox release.
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This is an easy and quick tip but a great addition to VirtualBox fundamentals. If you find this tip useful, check out a few features of [VirtualBox guest additions][8].
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--------------------------------------------------------------------------------
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via: https://itsfoss.com/increase-disk-size-virtualbox/
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作者：[Dimitrios Savvopoulos][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://itsfoss.com/author/dimitrios/
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[b]: https://github.com/lujun9972
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[1]: https://www.virtualbox.org/
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[2]: https://itsfoss.com/free-up-space-ubuntu-linux/
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[3]: https://i2.wp.com/itsfoss.com/wp-content/uploads/2020/11/enlarge-disk-size-virtualbox.png?resize=800%2C450&ssl=1
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[4]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2020/11/1-virtual-box-media-manager.png?resize=800%2C600&ssl=1
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[5]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2020/11/2-virtual-box-increase-disc-space.png?resize=800%2C505&ssl=1
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[6]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2020/11/3-virtual-box-increase-disc-space-terminal.png?resize=800%2C600&ssl=1
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[7]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2020/11/4-virtual-box-preferences.png?resize=800%2C450&ssl=1
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[8]: https://itsfoss.com/install-fedora-in-virtualbox/
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@ -0,0 +1,89 @@
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[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (How to Increase Disk Size of Your Existing Virtual Machines in VirtualBox)
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[#]: via: (https://itsfoss.com/increase-disk-size-virtualbox/)
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[#]: author: (Dimitrios Savvopoulos https://itsfoss.com/author/dimitrios/)
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如何在 VirtualBox 中增加现有虚拟机的磁盘大小
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======
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下面是你迟早会遇到的情况。
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你在 [VirtualBox][1] 中安装了一个或多个操作系统。在创建这些虚拟操作系统的同时，你还在 VirtualBox 中为它们创建了虚拟硬盘。
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你指定了虚拟磁盘的最大大小，比如说 15 或 20GB，但现在使用了一段时间后，你发现你的虚拟机已经没有空间了。
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虽然[在 Ubuntu 和其他操作系统上有释放磁盘空间的方法][2]，但更稳健的处理方式是增加 VirtualBox 中创建的虚拟机的磁盘大小。
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是的，你可以在 VirtualBox 中扩大虚拟硬盘，即使在创建之后也可以。虽然这是一个安全且经过测试的过程，但我们强烈建议你在执行这样的操作之前，先创建一个虚拟机的备份。
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### 如何扩大 VirtualBox 磁盘大小
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![][3]
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我将向你展示如何在 VirtualBox 中以图形和命令行（对于 Linux 极客）方式调整磁盘大小。这两种方法都很简单直接。
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#### 方法 1：在 VirtualBox 中使用虚拟媒体管理器
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VirtualBox 6 增加了一个调整虚拟磁盘大小的图形化选项。你可以在 VirtualBox 主页的文件选项卡中找到它。
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进入 _**File->Virtual Media Manager**_：
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![][4]
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在列表中选择一个虚拟机，然后使用 ”Size“ 滑块或输入你需要的大小值。完成后点击 ”Apply“。
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![][5]
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请记住，虽然你增加了虚拟磁盘的大小，但**如果你的空间是动态分配的，那么实际的分区大小仍然不变**。
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#### 方法 2：使用 Linux 命令行增加 VirtualBox 磁盘空间
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如果你使用 Linux 操作系统作为宿主机，打开终端并输入以下命令来调整 VDI 的大小：
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```
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VBoxManage modifymedium "/path_to_vdi_file" --resize <megabytes>
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```
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在你按下回车执行命令后，调整大小的过程应该马上结束。
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注意事项
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VirtualBox 早期版本命令中的 **modifyvdi** 和 **modifyhd** 命令也支持，并在内部映射到 **modifymedium** 命令。
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![][6]
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如果你不确定虚拟机的保存位置，可以在 VirtualBox 主页面点击 **Files -> Preferences** 或使用键盘快捷键 **Ctrl+G** 找到默认位置。
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![][7]
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#### 总结
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就我个人而言，我更喜欢在每个 Linux 发行版上使用终端来扩展磁盘，图形化选项是最新的 VirtualBox 版本的一个非常方便的补充。
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这是一个简单快捷的小技巧，但对 VirtualBox 基础知识是一个很好的补充。如果你觉得这个小技巧很有用，可以看看 [VirtualBox 客户端增强包][8]的几个功能。
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--------------------------------------------------------------------------------
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via: https://itsfoss.com/increase-disk-size-virtualbox/
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作者：[Dimitrios Savvopoulos][a]
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选题：[lujun9972][b]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://itsfoss.com/author/dimitrios/
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[b]: https://github.com/lujun9972
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[1]: https://www.virtualbox.org/
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[2]: https://itsfoss.com/free-up-space-ubuntu-linux/
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[3]: https://i2.wp.com/itsfoss.com/wp-content/uploads/2020/11/enlarge-disk-size-virtualbox.png?resize=800%2C450&ssl=1
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[4]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2020/11/1-virtual-box-media-manager.png?resize=800%2C600&ssl=1
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[5]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2020/11/2-virtual-box-increase-disc-space.png?resize=800%2C505&ssl=1
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[6]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2020/11/3-virtual-box-increase-disc-space-terminal.png?resize=800%2C600&ssl=1
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[7]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2020/11/4-virtual-box-preferences.png?resize=800%2C450&ssl=1
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[8]: https://itsfoss.com/install-fedora-in-virtualbox/
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