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Thread: Upgrading to 20.04 - Not enough free disk space

  1. #1
    Join Date
    Dec 2016
    Beans
    91

    Upgrading to 20.04 - Not enough free disk space

    So spent the afternoon simply trying to upgrade from Ubuntu 18.04 to 20.04

    using the following command
    Code:
    sudo update-manager -c -d
    But repeatedly get the following error popup when the installation is half complete

    Not enough free disk space

    The upgrade has aborted. The upgrade needs a total of 4,520 M free space on disk '/'. Please free at least an additional 3,510 M of disk space on '/'. Empty your trash and remove temporary packages of former installations using 'sudo apt-get clean'.
    I've gone thru all the usual steps to free up space including removing ALL but necessary linux kernels et.

    This is the result of a $df command

    Code:
    Filesystem     1K-blocks      Used Available Use% Mounted on
    udev            32870524         0  32870524   0% /dev
    tmpfs            6588324      2076   6586248   1% /run
    /dev/sda2       41153856  38030268   1010052  98% /
    tmpfs           32941612         0  32941612   0% /dev/shm
    tmpfs               5120         4      5116   1% /run/lock
    tmpfs           32941612         0  32941612   0% /sys/fs/cgroup
    /dev/loop0         56320     56320         0 100% /snap/core18/1705
    /dev/nvme1n1p1 491209736     71596 466116444   1% /mnt/xxxxxxxxxxxx
    /dev/loop1        114432    114432         0 100% /snap/cmake/340
    /dev/loop2        116992    116992         0 100% /snap/cmake/283
    /dev/loop3         56320     56320         0 100% /snap/core18/1754
    /dev/loop4         56064     56064         0 100% /snap/core18/1668
    /dev/sda1         562084      7324    554760   2% /boot/efi
    /dev/loop5        114432    114432         0 100% /snap/cmake/323
    /dev/sda3      660427896 538425036  88432044  86% /home
    tmpfs            6588320        52   6588268   1% /run/user/1000
    Can any experienced linux users suggest what steps i should take next?
    Thanks and regards

  2. #2
    Join Date
    Jun 2010
    Location
    London, England
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: Upgrading to 20.04 - Not enough free disk space

    Why are you using the -d switch? That will attempt to upgrade to Ubuntu 20.10 development version. Apart from that your root folder (sda2) is 98% full and your home folder (sda3) is 86% full. From Ubuntu 18.04 onwards a swap file is used instead of a swap partition. I have no idea how much swap space is used during an OS upgrade but you may be in a situation where the swap file cannot expand as large as it needs to.

    Regards
    It is a machine. It is more stupid than we are. It will not stop us from doing stupid things.
    Ubuntu user #33,200. Linux user #530,530


  3. #3
    Join Date
    May 2020
    Beans
    15
    Distro
    Xubuntu 20.04 Focal Fossa

    Re: Upgrading to 20.04 - Not enough free disk space

    Why are you using the -d switch? That will attempt to upgrade to Ubuntu 20.10 development version.
    No; if you want to update from LTS to LTS before the first point release, you have to use -d. LTS users won't get notified of a new version right away.

  4. #4
    Join Date
    May 2020
    Beans
    15
    Distro
    Xubuntu 20.04 Focal Fossa

    Re: Upgrading to 20.04 - Not enough free disk space

    One thing you can try to find out where the largest folders are is
    Code:
    cd /
    sudo du -sh ./*
    This might give you an idea what else you might have to remove or at least move out of the way for the upgrade.

  5. #5
    Join Date
    Apr 2014
    Beans
    17
    Distro
    Xubuntu

    Re: Upgrading to 20.04 - Not enough free disk space

    Look for cache, thumbnail, temp, and tmp directories. You'll probably be safe deleting the contents within.

  6. #6
    Join Date
    Jul 2005
    Location
    I think I'm here! Maybe?
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    Hidden!

    Re: Upgrading to 20.04 - Not enough free disk space

    I would immediately suspect some runaway logs in /var/log but without more info it's impossible to know, but with a separate /home partition filling a 40G / partition is a bit unusual.

    Run command
    Code:
    cd /var/log; du -h -d 1 | sort -h
    to see all the first level folder content of /var/log or search other places by moving to a different folder at the start of the command.
    DISTRO: Xubuntu 20.04-64bit --- Code-tags --- Boot-Repair --- Grub2 wiki & Grub2 Basics --- RootSudo --- Wireless-Info --- SolvedThreads

  7. #7
    Join Date
    Mar 2007
    Beans
    650

    Re: Upgrading to 20.04 - Not enough free disk space

    I'd check /var as well but you can also:

    Code:
    sudo apt autoremove
    sudo apt autoclean
    cd / 
    sudo du -sh *
    to see where that space has gone.
    I agree it shouldn't be that full unless you've got something else on it.

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