注意 一定要停掉虚拟机或休眠也可以！但是最好是要重启一下才生效。

修改方法1：

直接修改：

打开virtualbox 管理》虚拟介质管理》可以直接调

报错 原因 是没关闭虚拟机，或休眠掉。再试一次，修改成功：

 

 

 

修改方法2： 

 

VBoxManage modifyhd [虚拟机vdi文件位置] --resize [102400] 

VBoxManage modifyhd E:\VirtualBoxInstall\sparkproject1\sparkproject1.vdi --resize [10240] 

更改为10G

报错 ：

D:\Program Files\Oracle\VirtualBox>
D:\Program Files\Oracle\VirtualBox>
D:\Program Files\Oracle\VirtualBox>
D:\Program Files\Oracle\VirtualBox>VBoxManage modifyhd E:\VirtualBoxInstall\sparkproject1\sparkproject1.vdi --resize [10240]
Oracle VM VirtualBox Command Line Management Interface Version 5.2.18
(C) 2005-2018 Oracle Corporation
All rights reserved.

Usage:

VBoxManage modifymedium     [disk|dvd|floppy] <uuid|filename>
                            [--type normal|writethrough|immutable|shareable|
                                    readonly|multiattach]
                            [--autoreset on|off]
                            [--property <name=[value]>]
                            [--compact]
                            [--resize <megabytes>|--resizebyte <bytes>]
                            [--move <path]
                            [--description <description string>]

Syntax error: --resize: RTGetOpt: Command line option has argument with bad format.

D:\Program Files\Oracle\VirtualBox>

原因是 后面的数字 不要加中括号：

修改成功：

D:\Program Files\Oracle\VirtualBox>VBoxManage modifyhd E:\VirtualBoxInstall\sparkproject1\sparkproject1.vdi --resize 10240
VBoxManage.exe: error: Failed to lock media when compacting 'E:\VirtualBoxInstall\sparkproject1\sparkproject1.vdi'
VBoxManage.exe: error: Details: code VBOX_E_INVALID_OBJECT_STATE (0x80bb0007), component MediumWrap, interface IMedium, callee IUnknown
VBoxManage.exe: error: Context: "Resize(cbResize, pProgress.asOutParam())" at line 740 of file VBoxManageDisk.cpp
VBoxManage.exe: error: Failed to resize medium!

D:\Program Files\Oracle\VirtualBox>VBoxManage modifyhd E:\VirtualBoxInstall\sparkproject1\sparkproject1.vdi --resize 10240
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

D:\Program Files\Oracle\VirtualBox>