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RE: Question on Compression for Raw Image

From: Alberto Garcia
Subject: RE: Question on Compression for Raw Image
Date: Tue, 20 Oct 2020 16:36:36 +0200
User-agent: Notmuch/0.18.2 (http://notmuchmail.org) Emacs/24.4.1 (i586-pc-linux-gnu)

On Tue 20 Oct 2020 04:22:43 PM CEST, Wang, Wei W wrote:

> Ok, thanks. I'm thinking QEMU could do decompression of the compressed
> data in raw.img when guest reads data.

The qcow2 format already supports compression and it's already
transparent to the guest, so you can use that.

As Kevin said if it's compressed it's no longer raw so you would be
creating a new type of file format.


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