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First time capturing CentOS Linux image - Drive won't shrink

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  • K
    kafluke
    last edited by Feb 1, 2018, 9:37 PM

    I have my image container set to “Single Disk - Resizable” but when I go to capture the image it is capturing the entire 500gb drive. Empty space and all. Is there some command that I need to run on the Linux box before shutting it down?

    1 Reply Last reply Reply Quote 0
    • T
      Tom Elliott
      last edited by Feb 1, 2018, 9:44 PM

      Going to guess CentOS is built on LVM?

      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

      Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

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      K 1 Reply Last reply Feb 1, 2018, 9:58 PM Reply Quote 0
      • K
        kafluke @Tom Elliott
        last edited by Feb 1, 2018, 9:58 PM

        @tom-elliott I think so yes. How do I tell?

        W 1 Reply Last reply Feb 1, 2018, 11:38 PM Reply Quote 0
        • W
          Wayne Workman @kafluke
          last edited by Wayne Workman Feb 1, 2018, 5:39 PM Feb 1, 2018, 11:38 PM

          @kafluke These commands:

          lvdisplay
          vgdisplay
          pvdisplay
          lsblk
          df -h
          

          Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
          Daily Clean Installation Results:
          https://fogtesting.fogproject.us/
          FOG Reporting:
          https://fog-external-reporting-results.fogproject.us/

          K 1 Reply Last reply Feb 2, 2018, 1:34 PM Reply Quote 0
          • K
            kafluke @Wayne Workman
            last edited by Feb 2, 2018, 1:34 PM

            @wayne-workman

            oot@localhost ~]# lvdisplay
              --- Logical volume ---
              LV Path                /dev/VolGroup/lv_root
              LV Name                lv_root
              VG Name                VolGroup
              LV UUID                8eSY96-2DZs-XcRb-P5Yk-6cLC-NgKo-khI0x7
              LV Write Access        read/write
              LV Creation host, time localhost.localdomain, 2018-01-31 13:10:22 -0500
              LV Status              available
              # open                 1
              LV Size                50.00 GiB
              Current LE             12800
              Segments               1
              Allocation             inherit
              Read ahead sectors     auto
              - currently set to     256
              Block device           253:0
            
              --- Logical volume ---
              LV Path                /dev/VolGroup/lv_home
              LV Name                lv_home
              VG Name                VolGroup
              LV UUID                wCyqEP-KrM4-Qcfr-5JwM-2i6H-Z3Id-DFuQ9X
              LV Write Access        read/write
              LV Creation host, time localhost.localdomain, 2018-01-31 13:10:36 -0500
              LV Status              available
              # open                 1
              LV Size                411.41 GiB
              Current LE             105321
              Segments               1
              Allocation             inherit
              Read ahead sectors     auto
              - currently set to     256
              Block device           253:2
            
              --- Logical volume ---
              LV Path                /dev/VolGroup/lv_swap
              LV Name                lv_swap
              VG Name                VolGroup
              LV UUID                rJ669N-nuiy-VzhY-qjpm-QzXc-ljpm-piiPrV
              LV Write Access        read/write
              LV Creation host, time localhost.localdomain, 2018-01-31 13:11:33 -0500
              LV Status              available
              # open                 1
              LV Size                3.86 GiB
              Current LE             988
              Segments               1
              Allocation             inherit
              Read ahead sectors     auto
              - currently set to     256
              Block device           253:1
            
            [root@localhost ~]# vgdisplay
              --- Volume group ---
              VG Name               VolGroup
              System ID
              Format                lvm2
              Metadata Areas        1
              Metadata Sequence No  4
              VG Access             read/write
              VG Status             resizable
              MAX LV                0
              Cur LV                3
              Open LV               3
              Max PV                0
              Cur PV                1
              Act PV                1
              VG Size               465.27 GiB
              PE Size               4.00 MiB
              Total PE              119109
              Alloc PE / Size       119109 / 465.27 GiB
              Free  PE / Size       0 / 0
              VG UUID               idHhLk-uM2L-x78s-UkET-3NnG-IaOs-ig2qae
            
            [root@localhost ~]# pvdisplay
              --- Physical volume ---
              PV Name               /dev/sda2
              VG Name               VolGroup
              PV Size               465.27 GiB / not usable 3.00 MiB
              Allocatable           yes (but full)
              PE Size               4.00 MiB
              Total PE              119109
              Free PE               0
              Allocated PE          119109
              PV UUID               N3L3CC-tvY8-ueht-ydt2-Kj8o-O6pD-zdmxTd
            
            [root@localhost ~]# lsblk
            NAME                        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
            sda                           8:0    0 465.8G  0 disk
            ├─sda1                        8:1    0  77.7M  0 part /boot
            └─sda2                        8:2    0 465.3G  0 part
              ├─VolGroup-lv_root (dm-0) 253:0    0    50G  0 lvm  /
              ├─VolGroup-lv_swap (dm-1) 253:1    0   3.9G  0 lvm  [SWAP]
              └─VolGroup-lv_home (dm-2) 253:2    0 411.4G  0 lvm  /home
            [root@localhost ~]# df -h
            Filesystem            Size  Used Avail Use% Mounted on
            /dev/mapper/VolGroup-lv_root
                                   50G  6.7G   40G  15% /
            tmpfs                 1.9G     0  1.9G   0% /dev/shm
            /dev/sda1              64M   31M   29M  52% /boot
            /dev/mapper/VolGroup-lv_home
                                  405G  144M  385G   1% /home
            
            
            1 Reply Last reply Reply Quote 0
            • K
              kafluke
              last edited by Feb 2, 2018, 2:10 PM

              What now? How do I get FOG to shrink when capturing?

              W 1 Reply Last reply Feb 2, 2018, 2:50 PM Reply Quote 0
              • W
                Wayne Workman @kafluke
                last edited by Wayne Workman Feb 2, 2018, 8:51 AM Feb 2, 2018, 2:50 PM

                @kafluke said in First time capturing CentOS Linux image - Drive won’t shrink:

                How do I get FOG to shrink when capturing?

                Looking at the output below, your image is using LVM. Normally this is a good thing and preferred in the Linux world. Unfortunately, fog currently cannot resize an image that uses LVM.

                The way to go about making this work for you is to recreate the image but do not use LVM, and ensure all the partitions you create are of the type: Ext4 or swap.

                Everyone who hangs around on these forums is generally really good at Linux partitioning - so if you need some guidance on how to lay it out, we can help you with that, just ask.

                Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                Daily Clean Installation Results:
                https://fogtesting.fogproject.us/
                FOG Reporting:
                https://fog-external-reporting-results.fogproject.us/

                1 Reply Last reply Reply Quote 0
                • K
                  kafluke
                  last edited by Feb 2, 2018, 6:40 PM

                  Okay that was it. Thanks. I reset my image using ext4

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