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Re: Ext3 -> Ext2 ?



On Fri, Feb 22, 2002 at 07:00:11PM +0100, Dr.-Ing. Torsten Finke wrote:
> 
> How could I convert an Ext3 down to an Ext2, so having the 
> chance to work by hand? 

You don't need to do anything.  The journal file was properly created,
as other people have said; it's merely invisible (which is actually
preferable, since it avoids it getting unnecessarily seen by backup
programs, and it avoids disasters caused by less-than-clueful system
administrators).

A filesystem with a journal will also work just fine under ext2, so
there's no reason to downgrade to a journal-less filesystem just
because you might want to use that filesystem on an ext2-only system.

That being said, if you're desparate to reclaim the few megabytes of
space consumed by the journal inode, you can get rid of the inode by
using "tune2fs -O ^has_journal /dev/hdXXX" while the filesystem is
unmounted.  But in general, there's no real reason why you need to
downgrade your filesystem unless you're desparate for that space back.

						- Ted





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