df shows up different usage in 12_04 and 11_04

[rcube]

df -h reports differently on 12_04 compared to the same partition mount on 11_04 ; Is this pertaining to the kernel? or issue with Filesystem ext4?

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: coreutils 8.13-3ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Wed May 2 11:02:56 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcEnviron:
 LANGUAGE=en_IN:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: coreutils
UpgradeStatus: No upgrade log present (probably fresh install)

sudo du -ah *
16K lost+found
(No other hidden files)
--------------------------
Release: 12.04
Codename: precise
3.2.0-24-generic

/dev/sda3 21G 430M 20G 3% /media/MAIL

/dev/sda3 on /media/MAIL type ext4 (rw,nosuid,nodev,uhelper=udisks)

/dev/sda3 482367690 524474054 21053182+ 83 Linux

tune2fs 1.42 (29-Nov-2011)
Filesystem volume name: MAIL
Last mounted on: <not available>
Filesystem UUID: 55358805-38de-4235-94d2-ddcfcab603b0
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 1316336
Block count: 5263295
Reserved block count: 0
Free blocks: 5136653
Free inodes: 1316325
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 1022
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8176
Inode blocks per group: 511
Flex block group size: 16
Filesystem created: Sat Apr 28 12:46:26 2012
Last mount time: Mon Apr 30 23:29:38 2012
Last write time: Mon Apr 30 23:29:38 2012
Mount count: 5
Maximum mount count: -1
Last checked: Sat Apr 28 12:46:26 2012
Check interval: 0 (<none>)
Lifetime writes: 454 MB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 28
Desired extra isize: 28
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: a927b10d-b933-418a-bfac-89bf263a4b64
Journal backup: inode blocks

----------------

Release: 11.04
Codename: natty
2.6.38-14-generic

/dev/sda3 20G 172M 20G 1% /media/MAIL

/dev/sda3 on /media/MAIL type ext4 (rw,nosuid,nodev,uhelper=udisks)

/dev/sda3 30027 32647 21053182+ 83 Linux

tune2fs 1.41.14 (22-Dec-2010)
Filesystem volume name: MAIL
Last mounted on: <not available>
Filesystem UUID: 55358805-38de-4235-94d2-ddcfcab603b0
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 1316336
Block count: 5263295
Reserved block count: 0
Free blocks: 5136653
Free inodes: 1316325
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 1022
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8176
Inode blocks per group: 511
Flex block group size: 16
Filesystem created: Sat Apr 28 12:46:26 2012
Last mount time: Mon Apr 30 23:44:57 2012
Last write time: Mon Apr 30 23:44:57 2012
Mount count: 6
Maximum mount count: -1
Last checked: Sat Apr 28 12:46:26 2012
Check interval: 0 (<none>)
Lifetime writes: 454 MB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 28
Desired extra isize: 28
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: a927b10d-b933-418a-bfac-89bf263a4b64
Journal backup: inode blocks
---
Architecture: amd64
DistroRelease: Ubuntu 11.04
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
Package: coreutils 8.5-1ubuntu6
PackageArchitecture: amd64
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.38-15.59-generic 2.6.38.8
Tags: natty
Uname: Linux 2.6.38-15-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers
---
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
DistroRelease: Ubuntu 12.04
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
Package: coreutils 8.13-3ubuntu3
PackageArchitecture: amd64
ProcEnviron:
 LANGUAGE=en_IN:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_IN
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Tags: precise
Uname: Linux 3.2.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Ralph Corderoy (ralph-inputplus)]

Are you only switching kernels or booting a whole different version of Ubuntu, including coreutils? What's the output of `dpkg-query -W coreutils' just before you run both df's?

[C de-Avillez (hggdh2)]

Also please use 'ubuntu-bug', or 'apport-bug', to open bugs. This will collect all basic data needed, including package version, pre-reqs, and Ubuntu version

[rcube (rejithrr)]

i am booting to different versions of ubuntu
coreutils 8.13-3ubuntu3
Release: 12.04
Codename: precise

also do i need to report bug from both versions or only one will do using ubunut-bug?

[rcube (rejithrr)]

Precise ubuntu-bug reported #993035
will capture other once i boot to other

[C de-Avillez (hggdh2)]

You do not need to open two bugs. What we are trying to inhibit is manually opening bugs: most of the times, some type of data is not entered, or it is entered in a different format -- and this causes more pain to both the reporter and the triager/maintainer.

[rcube (rejithrr)]

apport information

[rcube (rejithrr)]

apport information

[C de-Avillez (hggdh2)]

Actually, where are the outputs of 'df -h' on both versions?