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[Rolf Leggewie <978141@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 162159 ***
    https://bugs.launchpad.net/bugs/162159

** This bug has been marked a duplicate of bug 162159
   baobab does not signal that you cannot read all folders

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https://bugs.launchpad.net/bugs/978141

Title:
  Bad disk usage estimation

Status in “baobab” package in Ubuntu:
  Incomplete

Bug description:
  Description:	Ubuntu precise (development branch)
  Release:	12.04

  I have the following LVM partitions

  sudo lvdisplay
  [sudo] password for jblain: 
    --- Logical volume ---
    LV Name                /dev/vg0/root
    VG Name                vg0
    LV UUID                JLAmFC-Y0mO-e6vK-f91x-ZtS6-bihR-f8TDRL
    LV Write Access        read/write
    LV Status              available
    # open                 1
    LV Size                1.86 GiB
    Current LE             476
    Segments               1
    Allocation             inherit
    Read ahead sectors     auto
    - currently set to     256
    Block device           252:0
     
    --- Logical volume ---
    LV Name                /dev/vg0/swap
    VG Name                vg0
    LV UUID                0gxNAK-Epjv-ssDN-V4Ae-MFfS-wBRS-m0QrLe
    LV Write Access        read/write
    LV Status              available
    # open                 2
    LV Size                1.86 GiB
    Current LE             476
    Segments               1
    Allocation             inherit
    Read ahead sectors     auto
    - currently set to     256
    Block device           252:1
     
    --- Logical volume ---
    LV Name                /dev/vg0/var
    VG Name                vg0
    LV UUID                RUvmIL-CegM-jS4c-lQtA-ewqh-bK9G-eQeg1C
    LV Write Access        read/write
    LV Status              available
    # open                 1
    LV Size                2.00 GiB
    Current LE             512
    Segments               2
    Allocation             inherit
    Read ahead sectors     auto
    - currently set to     256
    Block device           252:2
     
    --- Logical volume ---
    LV Name                /dev/vg0/var.log
    VG Name                vg0
    LV UUID                6bYA9q-uIRx-0aUK-sCLb-k9eX-WNgO-ZHr9Rr
    LV Write Access        read/write
    LV Status              available
    # open                 1
    LV Size                356.00 MiB
    Current LE             89
    Segments               1
    Allocation             inherit
    Read ahead sectors     auto
    - currently set to     256
    Block device           252:3
     
    --- Logical volume ---
    LV Name                /dev/vg0/var.spool
    VG Name                vg0
    LV UUID                hYcSD6-r6w0-ql2p-70B1-AzHY-zYbK-JSFj71
    LV Write Access        read/write
    LV Status              available
    # open                 1
    LV Size                288.00 MiB
    Current LE             72
    Segments               1
    Allocation             inherit
    Read ahead sectors     auto
    - currently set to     256
    Block device           252:4
     
    --- Logical volume ---
    LV Name                /dev/vg0/home
    VG Name                vg0
    LV UUID                mxNfwi-Z68E-gOem-VH1Y-BmCd-Oopn-9XjSls
    LV Write Access        read/write
    LV Status              available
    # open                 1
    LV Size                135.00 GiB
    Current LE             34560
    Segments               2
    Allocation             inherit
    Read ahead sectors     auto
    - currently set to     256
    Block device           252:5
     
    --- Logical volume ---
    LV Name                /dev/vg0/usr
    VG Name                vg0
    LV UUID                Getjz3-VZM8-3LRC-Dvpy-vvfO-1UU5-Si6eSB
    LV Write Access        read/write
    LV Status              available
    # open                 1
    LV Size                10.00 GiB
    Current LE             2560
    Segments               2
    Allocation             inherit
    Read ahead sectors     auto
    - currently set to     256
    Block device           252:6
     
    --- Logical volume ---
    LV Name                /dev/vg0/usr.local
    VG Name                vg0
    LV UUID                6pIgIq-AFGs-aQ7O-dIFV-Y5EG-GHQa-amw455
    LV Write Access        read/write
    LV Status              available
    # open                 1
    LV Size                288.00 MiB
    Current LE             72
    Segments               1
    Allocation             inherit
    Read ahead sectors     auto
    - currently set to     256
    Block device           252:7
     
    --- Logical volume ---
    LV Name                /dev/vg0/opt
    VG Name                vg0
    LV UUID                FpKrHy-8CSH-O5Gr-NgWb-i4A9-xQMm-CYKT08
    LV Write Access        read/write
    LV Status              available
    # open                 1
    LV Size                1.00 GiB
    Current LE             256
    Segments               1
    Allocation             inherit
    Read ahead sectors     auto
    - currently set to     256
    Block device           252:8
     
    --- Logical volume ---
    LV Name                /dev/vg0/tmp
    VG Name                vg0
    LV UUID                wPIS6j-3hgx-tnwv-5IwZ-VHwx-1sHs-JPQFO3
    LV Write Access        read/write
    LV Status              available
    # open                 1
    LV Size                288.00 MiB
    Current LE             72
    Segments               1
    Allocation             inherit
    Read ahead sectors     auto
    - currently set to     256
    Block device           252:9

  I am getting a Low Disk Space warning :

  The volume ''log'' has only 0 bytes disk space remaining.

  You can free up disk space by removing unused programs or files, or by moving files
  to another disk or partition.

  When I click the examine button on the warning screen Disk Usage
  Analyser is invoqued and gives the following correct report of /log
  (see screen2.jpg)

  So only 25.5 MB of the available 356.00 MB are actually used. I should
  therefore not get this warning. A similar error gets reported from
  time to time for partition /tmp

  Regards

  Jacques Blain

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