linux-ext4 - Re: dump/restore not supported for ext4

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Message-ID: <4B90419E.20309@redhat.com>
Date:	Thu, 04 Mar 2010 17:26:22 -0600
From:	Eric Sandeen <sandeen@...hat.com>
To:	Justin Piszcz <jpiszcz@...idpixels.com>
CC:	linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: dump/restore not supported for ext4

Justin Piszcz wrote:
> Hi,
> 
> I should have researched it more:
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511651
> https://lists.ubuntu.com/archives/universe-bugs/2009-June/098729.html
> 
> Looks like it's broken, I agree with the reporters, dump should abort if
> it is dealing with an ext4 filesystem, since you cannot restore data
> from an ext4 dump.

does dump still read the mounted block device directly?  I'm not familiar
with the internals (need to look, I guess) but if so, I wonder how that
+ delalloc get along...

-Eric

> Justin.
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