Re: [Ext2-devel] [RFC 0/13] extents and 48bit ext3

[Alan Cox]

Ar Gwe, 2006-06-09 am 11:59 -0700, ysgrifennodd Andrew Morton:
> Today's ext3 is, afaik, 100% on-disk compatible with ext3 from five years
> ago, and probably with RH's 2.2-based implementation.  

If your files are under 2GB long, you've not used any attributes,
SELinux labels or various other things maybe. In the practical real
world case it isn't. I doubt many Fedora/Red Hat users have a single FS
from RHEL4/FC1 onwards that is readable by 2.2 ext3 (or most 2.4 ext3)

OTOH the number of complaints about this is minimal, people want to go
forwards in a controlled manner not backwards.

Alan

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