linux-ext4 - RE: e2fsprogs: setting UUID with tune2fs corrupts an ext4 fs image

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Message-ID: <a7dc8a59e6be4974a800b87d633807e8@kistler.com>
Date:   Thu, 5 Dec 2019 16:51:55 +0000
From:   Viliam Lejcik <Viliam.Lejcik@...tler.com>
To:     "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>
Subject: RE: e2fsprogs: setting UUID with tune2fs corrupts an ext4 fs image

Hi Theodore,

Thank you for quick response. You can download the sample image here:
https://smartfile.kistler.com/link/Oggq7B33BaI/

It was slightly modified (I deleted some proprietary stuff), as it is difficult to build a sample image which leads to this problem. So you may find the issue on another inode, but if you run the commands as stated in the report, you'll be able to reproduce the issue, for sure.

BR,
Vilo

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-----Original Message-----
From: Theodore Y. Ts'o <tytso@....edu>
Sent: Thursday, 5. December 2019 16:48
To: Lejcik Viliam <Viliam.Lejcik@...tler.com>
Cc: linux-ext4@...r.kernel.org
Subject: Re: e2fsprogs: setting UUID with tune2fs corrupts an ext4 fs image

On Thu, Dec 05, 2019 at 12:36:35PM +0000, Viliam Lejcik wrote:
>
> This behavior can be reproduced on an ext4 fs image, so there's no need to run it on the device.

Where can we download or otherwise obtain the image where you are seeing the problem?

Thanks,

- Ted