Confused about some E2fsprogs notes

Trent Shea trent.shea at
Wed Oct 8 21:22:51 PDT 2008

On Sunday 05 October 2008 16:43:32 Bruce Dubbs wrote:
> > rml at rmlscsi: ~/build > sudo /sbin/debugfs -R feature /dev/sda3
> > debugfs 1.41.1 (01-Sep-2008)
> > Filesystem features: has_journal filetype needs_recovery
> > sparse_super large_file
> >
> > it shows only a subset of the features the book says.
> >
> > I don't really know how to determine what to do at this point.
> > I show many less features than the book does. What should I do
> > to ensure the feature list is correct?
> I'm pretty sure this only lists the actual feature set of the
> partition, not the list of all possible options.   See
> sudo /sbin/dumpe2fs /dev/sda3 | grep features

I've run both commands on a file system and had the same results appear, 
so I dug around a bit, and it looks like this was discussed a bit back 
in the day:


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