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The result of df -h is like this:

Filesystem               Size  Used Avail Use% Mounted on
udev                     3.9G     0  3.9G   0% /dev
tmpfs                    797M   88M  710M  11% /run
/dev/mapper/vgroot-root   25G   18G  5.8G  76% /
tmpfs                    3.9G  106M  3.8G   3% /dev/shm
tmpfs                    5.0M  4.0K  5.0M   1% /run/lock
tmpfs                    3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/sda1                945M   75M  806M   9% /boot
/dev/mapper/vgroot-home   15G   14G   56K 100% /home
vmhgfs-fuse              239G  200G   40G  84% /mnt/hgfs
tmpfs                    797M     0  797M   0% /run/user/999
tmpfs                    797M   64K  797M   1% /run/user/500

I see /home directory is 100% full, but don't know how can I enlarge it?

I tried resize2fs /home 50G and got

open: Is a directory while opening /home

Then I tried mount -o remount,size=50G /home but I got

mount: /home not mounted or bad option

Then I run gparted in the ubuntu client, the info is like this:

/dev/sda1   ext4        /boot  976MB
/dev/sda2   extended           299GB
  /dev/sda5 lvm2 pv     vgroot 299GB
unallocated unallocated        1MB

This is for my vmware disk, in vmware, the Ubuntu's disk is set to 300G as the max size.

Should /home be listed here? Do I need to mount it?

sudo lvdisplay is:

--- Logical volume ---
  LV Path                /dev/vgroot/root
  LV Name                root
  VG Name                vgroot
  LV Status              available
  # open                 1
  LV Size                25.00 GiB
  - currently set to     256
  Block device           253:0

  --- Logical volume ---
  LV Path                /dev/vgroot/swap
  LV Name                swap
  VG Name                vgroot
  LV Status              available
  # open                 2
  LV Size                4.00 GiB
  - currently set to     256
  Block device           253:1

  --- Logical volume ---
  LV Path                /dev/vgroot/home
  LV Name                home
  VG Name                vgroot
  LV Status              available
  # open                 1
  LV Size                15.00 GiB
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:2

LV size is 15GB.

sudo pvdisplay:

PV Name               /dev/sda5
  VG Name               vgroot
  PV Size               299.04 GiB / not usable 0   
  Allocatable           yes 
  PE Size               4.00 MiB
  Total PE              76555
  Free PE               65291
  Allocated PE          11264

pvscan is:

PV /dev/sda5   VG vgroot          lvm2 [299.04 GiB / 255.04 GiB free]
  Total: 1 [299.04 GiB] / in use: 1 [299.04 GiB] / in no VG: 0 [0   ]

I need to increase the size of /home, but how?

4
  • 1
    can you add the output of sudo lvdisplay to your question? Apr 18 '19 at 13:28
  • I think you're going about this the wrong way. You need to increase the overall size of the virtual machine then use the logical volume commands to increase the size. Apr 18 '19 at 14:09
  • the values shown by gparted, are they for your host or guest? Apr 18 '19 at 14:20
  • sorry make that sudo pvscan! Apr 18 '19 at 14:58
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Resize will not work on a mounted partition, you need un-mount the /home before you can resize it.

Try the following:

  1. Set a root password, you need to login as root user

    $ sudo passwd
    
  2. Login as root user on e.g. tty3 (via STRG+ALT+F3

    Ubuntu 18.04.2 LTS somehost tty3
    
    somehost: root
    Password:
    
  3. Make sure, all other user have logged out, then you can un-mount the /home folder

    $ umount /home
    
  4. When the umount was successful, you can resize the file system on the partition /dev/mapper/vgroot-home and mount the folder again

    $ resize2fs /dev/mapper/vgroot-home
    $ mount /home
    
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It's all about lvm. This link https://askubuntu.com/a/868632/926232 fixed my problem, I don't need a live iso or any GUI.

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