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gabriel.marinoja
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aa1fc587
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aa1fc587
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1 year ago
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iliya.saroukha
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feat: finished pt1 of lab4
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\n
ewpage
# QEMU avancé
## Conversion d'images disque
### Quels sont les formats d'images disponibles et leurs extensions respectives ?
Deux types d'images de la distribution Linux Debian 11 Bullseye
**server**
(64-bit)
sont disponibles :
-
VirtualBox $
\R
ightarrow$
`.vdi`
-
VMware $
\R
ightarrow$
`.vmdk`
> _"Un hyperviseur de Type 2 est un logiciel qui s'exécute à l'intérieur d'un
autre système d'exploitation"_
>
> -- <cite>[Hyperviseur](https://fr.wikipedia.org/wiki/Hyperviseur)</cite>
### Exécutez ensuite une VM QEMU sur chaque format d'image téléchargé
Initialement, il n'est pas possible de le faire car les formats
`.vdi`
et
`.vmdk`
ne sont pas géré comme des images natives au format
`qcow2`
. Par conséquent,
il est nécéssaire de le convertir dans le bon format grâce à l'outil
`qemu-img
convert`
.
```
bash
qemu-img convert
-O
qcow2 <img_src> <img_qcow2>
```
### Modification de la taille du cluster d'une image
L'exemple ci-dessous montre comment spécifier une taille de cluster de 2MB.
```
bash
qemu-img convert
-O
qcow2
-o
cluster_size
=
2M <img_src> <img_qcow2>
```
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