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Re: should ext2 be formated to support 2.0 kernels?



On Fri, Jun 08, 2001 at 05:31:50AM +0100, Edward Betts wrote:
> Adam Di Carlo <adam@onshore.com> wrote:
> > > On another topic: currently, the default ext2 partition formatting 
> > > provides backward support for 2.0 kernels. Would anyone object if I 
> > > change the default to 2.2 (and later) kernels? I noticed that the arm 
> > > message (in utilities/dbootstrap/partition_config.c) is a bit different, 
> > > something about netwinder firmware. I won't change that entry without 
> > > explicit instructions.
> > 
> > Yes, let's drop it except on ARM, which needs it for their
> > bootloader.  No other boot loader requires the ext2 from 2.0 and can't
> > cope with the ext2 from 2.2 kernels (unless I'm mistaken).
> 
> What advantages does it give if a filesystem does not support Linux 2.0?

Pre-2.2 kernels don't understand sparse superblocks and file type
information stored in directories, so these features need to be turned
off. I personally have no real idea whether these are necessary features
or not, but it's always been a bit disconcerting to me to be installing 
a 2.2.x kernel and having the default support for a 2.0 kernel.
Certainly, with 2.2.x having been around for quite a while now.

Stephen

-- 
Stephen R. Marenka     If life's not fun, you're not doing it right!
<stephen@marenka.net>

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