Default Kubuntu 13.10 LVM install - LV partition "Allocatable yes [but full]"

[brendan]

Hi,
Just did the default LVM install of 13.10. Realized after the fact that the second hard drive was not automatically added to the LV. It was NTFS formatted(this was previously a windows box).

Reformatted second hard disk in gparted and then added to LV:

sudo vgextend kubuntu-vg /dev/sdb1

However, after adding it I noticed that the original partition assigned to the LV has not assigned any free space.

$ sudo pvdisplay
  --- Physical volume ---
  PV Name               /dev/sda5
  VG Name               kubuntu-vg
  PV Size               148.81 GiB / not usable 2.00 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              38095
  Free PE               0
  Allocated PE          38095
  PV UUID               MdozMl-ocRw-tGAB-zd4p-86ag-PxGI-HTnvff
   
  --- Physical volume ---
  PV Name               /dev/sdb1
  VG Name               kubuntu-vg
  PV Size               149.05 GiB / not usable 1.31 MiB
  Allocatable           yes 
  PE Size               4.00 MiB
  Total PE              38156
  Free PE               38156
  Allocated PE          0
  PV UUID               8f46t3-ISYf-PtxL-qCCn-XHB4-ZJRW-wJ7Flq
   
$ sudo vgdisplay
  --- Volume group ---
  VG Name               kubuntu-vg
  System ID             
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  4
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               297.86 GiB
  PE Size               4.00 MiB
  Total PE              76251
  Alloc PE / Size       38095 / 148.81 GiB
  Free  PE / Size       38156 / 149.05 GiB
  VG UUID               IAWz0E-Hece-FsaG-ydfE-00ae-fP3o-XQm0o

Can anyone help me with why the partition /dev/sda5 is shown as allocated but full? Any how to fix it? The was the result of a default install...

[oshunluvr]

ext4? From the LVM manual:

On the other hand, if a system is partitioned with the ext4 file system, the hard drive is divided into partitions of defined sizes. If a partition becomes full, it is not easy to expand the size of the partition. Even if the partition is moved to another hard drive, the original hard drive space has to be reallocated as a different partition or not used.

Later docs say it can be done. What happens when you do lvextend ?

[oshunluvr]

Looks like you have to follow it with fsadm resize to grow it while online.

[brendan]

$ sudo lvextend -L +140G kubuntu-vg /dev/sda5  Path required for Logical Volume "kubuntu-vg"
  Please provide a volume group name
  Run `lvextend --help' for more information.

and

$ sudo fsadm resize /dev/kubuntu-vg 140G
fsadm: Cannot get FSTYPE of "/dev/kubuntu-vg"

[oshunluvr]

what's the output of vgdisplay -v

[brendan]

$ sudo vgdisplay -v    Finding all volume groups
    Finding volume group "kubuntu-vg"
  --- Volume group ---
  VG Name               kubuntu-vg
  System ID             
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  4
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               297.86 GiB
  PE Size               4.00 MiB
  Total PE              76251
  Alloc PE / Size       38095 / 148.81 GiB
  Free  PE / Size       38156 / 149.05 GiB
  VG UUID               IAWz0E-Hece-FsaG-ydfE-00ae-fP3o-XQm0oE
   
  --- Logical volume ---
  LV Path                /dev/kubuntu-vg/root
  LV Name                root
  VG Name                kubuntu-vg
  LV UUID                FlgvS7-Refz-7Rme-gxl7-bcxG-VQR3-I5hdmV
  LV Write Access        read/write
  LV Creation host, time kubuntu, 2014-03-19 05:44:00 -0300
  LV Status              available
  # open                 1
  LV Size                144.82 GiB
  Current LE             37075
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:0
   
  --- Logical volume ---
  LV Path                /dev/kubuntu-vg/swap_1
  LV Name                swap_1
  VG Name                kubuntu-vg
  LV UUID                eF5n5n-mr1J-ZjF0-aqHO-hJSM-VEHD-YjCLMa
  LV Write Access        read/write
  LV Creation host, time kubuntu, 2014-03-19 05:44:00 -0300
  LV Status              available
  # open                 2
  LV Size                3.98 GiB
  Current LE             1020
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:1
   
  --- Physical volumes ---
  PV Name               /dev/sda5     
  PV UUID               MdozMl-ocRw-tGAB-zd4p-86ag-PxGI-HTnvff
  PV Status             allocatable
  Total PE / Free PE    38095 / 0
   
  PV Name               /dev/sdb1     
  PV UUID               8f46t3-ISYf-PtxL-qCCn-XHB4-ZJRW-wJ7Flq
  PV Status             allocatable
  Total PE / Free PE    38156 / 38156

Wonder if I should just reinstall without LVM and manually create my LV afterwards...

[oshunluvr]

It seems to me you're trying to expand the physical device - which you can't do. You want to expand the logical volume.

Shouldn't you be doing this?

sudo lvextend -L +140G kubuntu-vg /dev/kubuntu-vg/root

[brendan]

Thanks for the help, but I already decided to reinstall, which has led to other problems, and a new thread.