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I am depending on running the following script (as an cronjob every week) for all my update of ubuntu focal fossa.

# To make the script exit upon error
set -e

Now carry on with the update and upgrade


apt-get --assume-yes --fix-missing update
dpkg --configure -a
apt-get --assume-yes --fix-broken install
apt-get --assume-yes upgrade
apt-get --assume-yes dist-upgrade
apt-get --assume-yes full-upgrade
apt-get --assume-yes autoremove
apt-get --assume-yes clean

I just wonder, since it includes something like dist-upgrade and full-upgrade, does it mean my focal-fossa will be automatically updated to the more recent jellyfish version? If so, does it make Ubuntu a rolling distro, just like manjaro?

Della
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    No, it doesn't. – Pilot6 May 14 '22 at 09:53
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    Does this answer your question? Will apt-get dist-upgrade upgrade my system to a newer version? – Pilot6 May 14 '22 at 09:54
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    since it includes something like dist-upgrade and full-upgrade, does it mean my focal-fossa will be automatically updated to the more recent jellyfish version? No, of course not, such information can be very easily googled, and those are redundant! This stems from a very poor understanding of what the commands do, lack of updated knowledge - use of the old apt-get instead of apt - and you don't depend on such "script" to keep the system updated, no one does. – ChanganAuto May 14 '22 at 10:00
  • You're using a stable system (ie. the second latest LTS release. If you want a rolling* system, Ubuntu can use rolling rhino, but you need to specifically select to use that, with the upgrade needing to be made from current development release which is five releases newer than your focal, ie. you upgrade to rolling rhino from kinetic (focal, gorilla, hirsute, impish, jammy, kinetic... you're a very old-stable system currently with focal) – guiverc May 14 '22 at 11:03
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    Automating repair (--fix missing and --fix broken) seems wasted effort: Apt cannot autofix network problems nor resolve breaks that are unwisely introduced by a human admin. Running both dist-upgrade and full-upgrade seems pointless. Pick the correct command and run it only when appropriate lest a human admin's mistake with sources devastate your system. – user535733 May 14 '22 at 13:37

1 Answers1

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Your script will not upgrade to a different Ubuntu release. (Unless you modify your /etc/apt/sources.list)

For upgrading to a new release you have:

do-release-upgrade

See the Ubuntu man page for do-release-upgrade

You might want to use apt instead of apt-get. I think apt-get full-upgrade does not even exist.

sudo apt upgrade

Will upgrade your existing packages if it can without removing or adding packages (in case of a change in dependencies)

sudo apt full-upgrade

Will do everything that the normal upgrade command does, and additionally might remove/add packages if required in order to upgrade.

I believe the "sudo apt-get upgrade" is redundant in your script and can be removed. The "sudo apt-get full-upgrade" can be changed to "sudo apt full-upgrade", so the "sudo apt-get dist-upgrade" can be removed as well.

BootsyZ
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    Nitpicking: the link refers to the man page of the do-release-upgrade command, where man stands for manual (as in: handbook), not for manage. – Jos May 14 '22 at 10:29
  • Whoops, I typed this on my phone. Apparently "manpage" was autocorrected to manage. I'll edit, thanks :) – BootsyZ May 14 '22 at 13:08