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Re: [Qemu-block] [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option
From: |
Fam Zheng |
Subject: |
Re: [Qemu-block] [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option |
Date: |
Mon, 20 Aug 2018 10:07:15 +0800 |
User-agent: |
Mutt/1.10.1 (2018-07-13) |
On Thu, 08/16 04:20, Max Reitz wrote:
> No, the real issue is that dd is still not implemented just as a
> frontend to convert. Which it should be. I'm not sure dd was a very
> good idea from the start, and now it should ideally be a frontend to
> convert.
>
> (My full opinion on the matter: dd has a horrible interface. I don't
> quite see why we replicated that inside qemu-img. Also, if you want to
> use dd, why not use qemu-nbd + Linux nbd device + real dd?)
The intention is that dd is a familiar interface and allows for operating on
portions of images. It is much more convenient than "qemu-nbd + Linux nbd + dd"
and a bit more convenient than "booting a Linux VM, attaching the image as a
virtual disk, then use dd in the guest". More so when writing tests.
Fam
- Re: [Qemu-block] [PATCH 1/2] qemu-img: Fix dd with skip= and count=, (continued)
- [Qemu-block] [PATCH 2/2] qemu-img: Add dd seek= option, Eric Blake, 2018/08/14
- Re: [Qemu-block] [PATCH 2/2] qemu-img: Add dd seek= option, Max Reitz, 2018/08/15
- Re: [Qemu-block] [PATCH 2/2] qemu-img: Add dd seek= option, Eric Blake, 2018/08/15
- Re: [Qemu-block] [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option, Eric Blake, 2018/08/15
- Re: [Qemu-block] [PATCH 2/2] qemu-img: Add dd seek= option, Max Reitz, 2018/08/15
- Re: [Qemu-block] [PATCH 2/2] qemu-img: Add dd seek= option, Eric Blake, 2018/08/15
- Re: [Qemu-block] [PATCH 2/2] qemu-img: Add dd seek= option, Max Reitz, 2018/08/15
- Re: [Qemu-block] [PATCH 2/2] qemu-img: Add dd seek= option, Kevin Wolf, 2018/08/16
- Re: [Qemu-block] [PATCH 2/2] qemu-img: Add dd seek= option, Max Reitz, 2018/08/17
- Re: [Qemu-block] [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option,
Fam Zheng <=
- Re: [Qemu-block] [Qemu-devel] [PATCH 2/2] qemu-img: Add dd seek= option, Max Reitz, 2018/08/20
Re: [Qemu-block] [Qemu-devel] [PATCH 0/2] Improve qemu-img dd, Eric Blake, 2018/08/15
Re: [Qemu-block] [Qemu-devel] [PATCH 0/2] Improve qemu-img dd, no-reply, 2018/08/16
Re: [Qemu-block] [Qemu-devel] [PATCH 0/2] Improve qemu-img dd, no-reply, 2018/08/16
Re: [Qemu-block] [Qemu-devel] [PATCH 0/2] Improve qemu-img dd, Eric Blake, 2018/08/19