[lug] journaling fs

[Alan Robertson]

Sean Reifschneider wrote:
> 
> On Tue, Sep 26, 2000 at 07:05:40PM -0600, Sebastian Sobolewski wrote:
> >         Migrating is a pain since there is no way to convert an ext2
> >partition to raiserFS.  (I think ext2 can be converted to ext3)  You have
> >to copy/backup your files somewhere else then reformat as reiserFS and
> 
> The nice thing about ext3 is that the additions are optional.  The
> story is that they were modifying ext2 to add btree-structured directory
> trees and journaling.  Linus didn't want to release a new "ext2" which
> might have some stability problems, so he made them change the name to
> ext3.
> 
> The journaling is done such that as long as you cleanly un-mount the
> journaled file-system, you can re-mount it as ext2.  The btree directory
> entries can be enabled on a directory-by-directory basis, so you can try
> before you buy there as well.  That was last I heard though, things may
> have changed.


I'm not sure if the btree stuff is in ext3.  Stephen created ext3 as a
separate type so he could run both types on his machines and not destroy
them all (like root for example) when he was first starting.

	-- Alan Robertson
	   alanr at suse.com