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I have the following setup:

  • Ubuntu 18.04
  • Internal Harddisk with 500 GB
  • External Harddisk with 4 TB (not important for my problem)

The internal harddisk shows the following properties with the GParted app:

Sidebar: "Device Information":

  • Model: ATA WDC WD5000AAKX-7
  • Serial: WD-WCC2EEY94064
  • Size: 465.76 GiB

  • Path: /dev/sda

  • Partion table: msdos

  • Heads: 255
  • Secotrs/track: 63
  • Cyclinders: 60801
  • Total sectors: 976773168
  • Sector size: 512

Partition > Manage Flags > Popup: "Manage flags on /dev/sda1"

  • boot (checked)
  • lvm (checked)

Partition > Information > Popup: "Information about /dev/sda1"

  • /dev/sda1

  • 465.76 GiB

    File System

  • File system: lvm2.pv

  • Label:
  • UUID: hJASV0-k01i-3Eqj-9gXc-8sa4-yqR4-MajmGz
  • Status: Active
  • Volume Group: ubuntu-vg
  • Members: /dev/sda1
  • Logical Volumes: "/dev/sda1" and "swap_1"
  • Used: 465.76 GiB ( 100% )
  • Unused: 4.00 MiB ( 0% )

  • Size: 465.76 GiB

    Partition:

  • Path: /dev/sda1

  • Name:
  • Flags: boot, lvm
  • First sector: 2048
  • Last sector: 976771071
  • Total sectors: 976769024

Partition > Resize/Move > Popup: "Resize /dev/sda1"

  • Minimum size: 476934 MiB
  • Free space preceding (MiB): 0
  • Maximum size: 476939 MiB
  • New size (MiB): 476938
  • Free space following (MiB): 1
  • Align to: MiB

View > File System Support > Popup "File System Support":

  • File System: lvm2.pv
  • Create: checked
  • Grow: checked checked
  • Shrink: checked checked
  • Move: checked
  • Copy: X
  • Check: checked
  • Label: X
  • UUID: X
  • Required Software: lvm2

At the moment, I am using about 7 GB of the harddisk. The installation is new and during the installation I chose my 500 GB harddisk for installation, but I didn't make any partitions, because I wasn't sure how to do it. I was hoping to do it now. But it is not very intuitive. I assume that the 7 GB data is not spread all over my harddisk and therefore I can still split it into two partitions:

  1. OS (50 GB)
  2. DATA (the rest of the harddisk)

Could you give me some pointers on how to proceed? Do I need additional software? Any help appreciated.

Bernhard
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  • By the way, I just tried my CD and use "Try Ubuntu" to use GParted, but it didn't help. I can't resize my partition. There is a 1 MB unallocated space, the rest is one big 465 GB piece, that I can't resize at all. – Bernhard May 05 '18 at 11:09
  • You can't resize the partition if it's mounted (shows a key icon). There could be other reasons. Edit your question and include a screenshot. – Organic Marble May 05 '18 at 12:21
  • I got a little further. I booted with my usb stick and then I used the following command: sudo lvremove /dev/ubuntu-vg/root and then in gparted I could deactivate the drive and for the first time I got to resize the partition, but the action was never successfully executed I got an error message from gparted: – Bernhard May 05 '18 at 14:36
  • lvm pvresize -v --setphysicalvolumesize 51200000K '/dev/sda1' 00:00:00 ( ERROR )

    0 physical volume(s) resized / 1 physical volume(s) not resized Wiping internal VG cache Wiping cache of LVM-capable devices Archiving volume group "ubuntu-vg" metadata (seqno 5). /dev/sda1: Requested size <48.83 GiB is less than real size <465.76 GiB. Proceed? [y/n]: [n] Physical Volume /dev/sda1 not resized.

     – Bernhard May 05 '18 at 14:36
  • Sorry, I know nothing about LVM, have never used it. Hopefully someone more knowledgable will come along. – Organic Marble May 05 '18 at 14:40
  • @OrganicMarble If I reinstall the whole os and then during installation choose to make partitions, what file system would you recommend? ext4 for both the partitions? – Bernhard May 05 '18 at 14:43
  • That's what I do. Ext4 partitions for /, /home, and I've been setting up a swap partition, but I understand that for 18.04 it's not required. – Organic Marble May 05 '18 at 15:21
  • Thanks for the help, but I just reinstalled the whole thing and made it ext4. According some other post on this site. – Bernhard May 06 '18 at 06:18
  • Im with the same problem but I cant simply format everything. Just stuck with GParted not working and even when running (successfully) using command line pvresize won`t work. https://askubuntu.com/questions/1044601/gparted-cant-shrink-physical-volume – jfneis Jun 07 '18 at 20:58
  • @Bernhard I understand that you already solved your situation, but it's being caused by a change in pvresize not expected by GParted. Same link: https://askubuntu.com/questions/1044601/gparted-cant-shrink-physical-volume/1044629#1044629 – jfneis Jun 07 '18 at 23:11

0 Answers0