问题描述
WSL ext4.vhdx 占用空间很大,即使在虚拟机中删除了很多文件,但在windows侧ext4.vhdx并不会自动收缩,仍然占用大量磁盘空间。
解决方案
关闭虚拟机
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| PS C:\Users\***> wsl --shutdown
PS C:\Users\***> wsl --list --verbose
NAME STATE VERSION
* Ubuntu-18.04 Stopped 2
docker-desktop Stopped 2
Ubuntu-22.04 Stopped 2
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使用diskpart工具压缩ext4.vhdx文件
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| PS C:\Users\vfvaf0> diskpart
Microsoft DiskPart version 10.0.19041.3636
Copyright (C) Microsoft Corporation.
On computer: DLFGVL3T3
DISKPART> select vdisk file="G:\vm\ubuntu22\ext4.vhdx"
DiskPart successfully selected the virtual disk file.
DISKPART> compact vdisk
100 percent completed
DiskPart successfully compacted the virtual disk file.
DISKPART>
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效果
- 实际虚拟机大小:
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| PS C:\Users\vfvaf0> wsl -d Ubuntu-18.04 -- df -h /
Filesystem Size Used Avail Use% Mounted on
/dev/sdg 1007G 56G 901G 6% /
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- windows侧ext4.vhdx大小:

TODO wsl config 自动释放?maybe unsafe
- .wslconfig
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| [experimental]
sparseVhd=true
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