---
title: 'how to make qemu-img make a fast default compressed image'
url: 'https://grav.munn.me/my-blog/how-to-make-qemu-img-make-a-fast-default-compressed-image'
markdown: 'https://grav.munn.me/my-blog/how-to-make-qemu-img-make-a-fast-default-compressed-image.md'
date: '2025-08-13'
description: 'I kept forgetting this, so I decided to create a blog entry qemu-img create -f qcow2 -o compression_type=zstd,extended_l2=on,cluster_size=128k /winderz/ubuntu.qcow2 80g'
---

# how to make qemu-img make a fast default compressed image

I kept forgetting this, so I decided to create a blog entry

```
 qemu-img create -f qcow2 -o compression_type=zstd,extended_l2=on,cluster_size=128k /winderz/ubuntu.qcow2 80g
```

---

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