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Re: Ext4 support

On Thu, Apr 29, 2021 at 10:06:05PM +0200, Vincent DEFERT wrote:
> On 29/04/2021 20:34, Christos Zoulas wrote:
> >Some ext4 features were implemented as part of GSoC 2016 (extents,
> >htrees).
> >I am sure that there are other unimplemented features. What are you looking
> >for?
> >
> >christos
> >
> I'd like to have full ext4 support so an ext4-formatted disk could be used
> to exchange data between Linux and NetBSD, for instance.
> If some features have already been implemented, I guess it has been decided
> to put them in /usr/src/sys/ufs/ext2fs and to keep that name.
> So now, I know where to start. :)
> There is also the question of the specifications: for now, I just have the
> Linux kernel sources and the wiki (
> I'm not aware of a more formal specification, but if one exists it would
> help avoid the risk of being too influenced by GPL'd source code.

There is excellent support, thanks to Reinoud Zandijk, in NetBSD for
UDF. And this is cross-system (I use it to share---not distribute: it's
not a NFS or a Samba---back-ups between NetBSD and MS Windows).

So you might try this instead of a Linux only thing.

My 2 cents,
        Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
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