[Bug 1090053] Re: e4defrag -c /mountpoint does not provide expected output

[Theodore Ts'o]

There wasn't actually an *error*.   E4defrag doesn't need root prives to
find and print statistics.  It doesn't deliberately because the people
who wrote the program decided this was the right thing to do.  So it's
not actually hiding the error, it's just doing something weird/stupid.
Which you could argue is a bug, but if so, it's more of a design issue.
(It's not like it's secret; and you get the same information using
filefrag.)

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Title:
  e4defrag -c /mountpoint does not provide expected output

Status in e2fsprogs package in Ubuntu:
  Invalid

Bug description:
  According to the man page this is the expected output below.

  OPTIONS
         -c     Get  a  current  fragmentation  count and an ideal fragmentation
                count, and calculate fragmentation score based on them. By  see‐
                ing  this  score,  we  can  determine  whether we should execute
                e4defrag to target.  When used with -v option, the current frag‐
                mentation  count  and  the ideal fragmentation count are printed
                for each file.

                Also this option outputs the average data size in one extent. If
                you  see it, you'll find the file has ideal extents or not. Note
                that the maximum extent size is 131072KB in ext4 filesystem  (if
                block size is 4KB).

                If this option is specified, target is never
  defragmented.

  I am attaching a screenshot of my output which is not what I expected.
  This may not be a bug but it is not very informational.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: e2fsprogs 1.42.5-1ubuntu2
  ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
  Uname: Linux 3.5.0-19-generic i686
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: i386
  Date: Thu Dec 13 12:09:04 2012
  InstallationDate: Installed on 2012-12-12 (1 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: e2fsprogs
  UpgradeStatus: No upgrade log present (probably fresh install)

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