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Re: [Qemu-devel] DMG chunk size independence
From: |
John Snow |
Subject: |
Re: [Qemu-devel] DMG chunk size independence |
Date: |
Mon, 24 Apr 2017 17:19:48 -0400 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.0 |
On 04/23/2017 05:03 AM, Ashijeet Acharya wrote:
> Hi,
>
> Great news!
> I have almost completed this task and the results are looking
> promising. I have not yet attended to the DMG files having bz2
> compressed chunks but that should be easy and pretty similar to my
> approach for zlib compressed files. So, no worries there.
>
> For testing I am first converting the images to raw format and then
> comparing the resulting image with the one converted using v2.9.0 DMG
> driver and after battling for 2 days with my code, it finally prints
> "Images are identical." According to John, that should be pretty
> conclusive and I completely agree.
>
Yes, comparing a sample.dmg against a raw file generated from the 2.9.0
qemu-img tool should be reasonably good evidence that you have not
altered the behavior of the tool.
> Now, the real thing I wanted to ask was, if someone is aware of a DMG
> file which has a chunk size above 64 MiB so that I can test those too.
> If yes, please share the download link with me.
> Currently I am testing the ones posted by Peter Wu while submitting
> his DMG work in 2014.
> Here -> https://lists.nongnu.org/archive/html/qemu-devel/2014-12/msg03606.html
>
Are any of those over 64MB? I assume you're implying that they aren't.
Maybe Peter knows?...
> Expect v1 soon...
>
> Ashijeet
>
- [Qemu-devel] DMG chunk size independence, Ashijeet Acharya, 2017/04/15
- Re: [Qemu-devel] DMG chunk size independence, John Snow, 2017/04/17
- Re: [Qemu-devel] DMG chunk size independence, Ashijeet Acharya, 2017/04/18
- Re: [Qemu-devel] DMG chunk size independence, John Snow, 2017/04/18
- Re: [Qemu-devel] DMG chunk size independence, Ashijeet Acharya, 2017/04/18
- Re: [Qemu-devel] DMG chunk size independence, Ashijeet Acharya, 2017/04/23
- Re: [Qemu-devel] DMG chunk size independence,
John Snow <=
- Re: [Qemu-devel] DMG chunk size independence, Ashijeet Acharya, 2017/04/25
- Re: [Qemu-devel] DMG chunk size independence, Peter Wu, 2017/04/25
Re: [Qemu-devel] DMG chunk size independence, Kevin Wolf, 2017/04/18
Re: [Qemu-devel] DMG chunk size independence, Ashijeet Acharya, 2017/04/25