VirtualBox虚拟机装的ubuntu系统，最初给了30G空间，但现在已经报磁盘空间不够了，折腾了几天，可算完成空间扩容，记录下来吧！

1、宿主机增加空间

关闭要扩容的虚拟机，查看硬盘信息，获取硬盘位置，执行虚拟机的空间扩容

C:\>cd 'c:\program Files\Oracle\virtualBox\'
C:\Program Files\Oracle\VirtualBox>VBoxManage.exe modifyhd "e:\VirtualBox VMs\Ubuntu22.10\Ubuntu.vdi" --resize 61440
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
增加到60G

2、进入虚拟机增加系统空间

u@u:~$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
loop0    7:0    0     4K  1 loop /snap/bare/5
loop1    7:1    0  73.8M  1 loop /snap/core22/750
sda      8:0    0    60G  0 disk 
├─sda1   8:1    0     1M  0 part 
├─sda2   8:2    0   513M  0 part /boot/efi
└─sda3   8:3    0  30G  0 part /var/snap/firefox/common/host-hunspell
sda 60G了，dsa3还是30G

使用parted /dev/sda扩容空间

sudo parted /dev/sda
GNU Parted 3.5
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) resizepart 3 100%                                                
Warning: Not all of the space available to /dev/sda appears to be used, you can
fix the GPT to use all of the space (an extra 20971520 blocks) or continue with
the current setting? 
Fix/Ignore? Fix                                                           
Partition number?3
(parted) quit  

u@u:~$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
loop0    7:0    0     4K  1 loop /snap/bare/5
loop1    7:1    0  73.8M  1 loop /snap/core22/750
sda      8:0    0    60G  0 disk 
├─sda1   8:1    0     1M  0 part 
├─sda2   8:2    0   513M  0 part /boot/efi
└─sda3   8:3    0  60G  0 part /var/snap/firefox/common/host-hunspell
lsblk查看空间已经是60G
u@u:~$ df -lh
Filesystem      Size  Used Avail Use% Mounted on
tmpfs           197M  6.3M  191M   4% /run
/dev/sda3        30G   25G   5G  83% /
tmpfs           982M     0  982M   0% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
/dev/sda2       512M  6.1M  506M   2% /boot/efi
tmpfs           197M  124K  197M   1% /run/user/131
tmpfs           197M  128K  197M   1% /run/user/1000
df查看空间还是30G

执行sudo resize2fs /dev/sda3刷新空间

u@u:~$  sudo resize2fs /dev/sda3
resize2fs 1.46.5 (30-Dec-2021)
Filesystem at /dev/sda3 is mounted on /; on-line resizing required
old_desc_blocks = 7, new_desc_blocks = 8
The filesystem on /dev/sda3 is now 15596795 (4k) blocks long.

u@u:~$ df -lh
Filesystem      Size  Used Avail Use% Mounted on
tmpfs           197M  6.3M  191M   4% /run
/dev/sda3        59G   25G   31G  45% /
tmpfs           982M     0  982M   0% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
/dev/sda2       512M  6.1M  506M   2% /boot/efi
tmpfs           197M  124K  197M   1% /run/user/131
tmpfs           197M  128K  197M   1% /run/user/1000
u@u:~$
执行sudo resize2fs /dev/sda3刷新空间

参考连接如下：

https://www.lmlphp.com/user/58523/article/item/822365/

https://blog.csdn.net/weixin_42856871/article/details/122534245