Ubuntu

[אורי]

Hi,

Thanks for your suggestion, I decided to upgrade to 18.04.4 and I ran a few
times the following commands (from root):

sudo apt autoremove
sudo apt-get update
sudo apt-get upgrade
sudo apt update
sudo apt upgrade

I have 4 servers and I upgraded all of them and 3 of them are working
properly, however one server apache is not working, I can't restart apache
(with "sudo systemctl restart apache2" - it's not responding) and the
website is not working. How can I fix it now?

The server didn't respond after reboot once (after 2 reboots) and I had to
shut it down and restart it again.

Thanks,
Uri
אורי
uri at speedy.net


On Wed, Jun 10, 2020 at 10:29 PM Micha Bailey <michabailey at gmail.com> wrote:

> Regarding the upgrade to Focal (20.04): There’s no reason to rush. Bionic
> (18.04) is supported, if I’m not mistaken, until 2023. In fact, Bionic
> (LTS) users aren’t even offered the upgrade (i.e. you need to go out of
> your way to get it) until 20.04.1 is out in a few months.
>
> Regarding the upgrade to 18.04.4, I could be mistaken, but my
> understanding is that point releases aren’t new versions of Ubuntu per se.
> At point releases, new isos are spun with up-to-date packages, but it’s
> still the same version. Assuming you make a habit of installing updates
> regularly (which you obviously should be), you will effectively
> automatically be on 18.04.4.
>
> On Wed, Jun 10, 2020 at 6:44 PM אורי <uri at speedy.net> wrote:
>
>> Hi,
>>
>> Actually I have a staging server which I can upgrade first to 18.04.4 to
>> see if it works, or if something breaks. But I didn't find it on Google -
>> how do I upgrade an OS to Ubuntu 18.04.4 (from 18.04.*) without upgrading
>> it to 20.04?
>>
>> אורי
>> uri at speedy.net
>>
>>
>> On Wed, Jun 10, 2020 at 6:19 PM Shlomi Fish <shlomif at gmail.com> wrote:
>>
>>> Hi Uri!
>>>
>>> ‪On Wed, Jun 10, 2020 at 5:30 PM ‫אורי‬‎ <uri at speedy.net> wrote:‬
>>>
>>>> Hi,
>>>>
>>>> I'm sorry for posting twice in the same day to the same mailing list.
>>>> But I have a question: I'm using Ubuntu 18.04.3 LTS for a few production
>>>> servers (one of them I upgraded a few months ago from 14.04). How important
>>>> it is to upgrade the OS version, or can I keep it like this? I'm afraid
>>>> that things will break up if I upgrade. And if I upgrade, should I upgrade
>>>> to Ubuntu 18.04.4 or 20.04? I think since 20.04 has been recently released,
>>>> it might have bugs which will be fixed later, and I prefer not to use the
>>>> first version of 20.04 but to wait about one year before I use it. Is there
>>>> a risk with keeping using 18.04.3? Or should I upgrade at least to 18.04.4?
>>>>
>>>>
>>> I've answered the general question here:
>>>
>>>
>>> https://github.com/shlomif/Freenode-programming-channel-FAQ/blob/master/FAQ_with_ToC__generated.md#will-a-change-i-would-like-to-do-break-some-functionality
>>>
>>> Quoting it:
>>>
>>> Will a change I would like to do break some functionality?
>>>
>>> As the aphorism
>>> <https://github.com/shlomif/shlomif-email-signature/blob/master/shlomif-sig-quotes.txt#L1988>
>>> goes: The difference between theory and practice is that in theory,
>>> there is no difference between theory and practice, while in practice,
>>> there is.. There is usually a risk, however small, that a change will
>>> break some functionality. With good tooling (such as
>>> https://en.wikipedia.org/wiki/Version_control ,
>>> https://en.wikipedia.org/wiki/Virtual_machine and
>>> https://en.wikipedia.org/wiki/OS-level_virtualisation ) it should be
>>> relatively easy to revert a change which introduced regressions, and you
>>> should do adequate testing.
>>>
>>> A change may have to be avoided due to being estimated as too time or
>>> money consuming, or as having too little gain. However, promising changes
>>> should be attempted because:
>>>
>>>    1. "No guts - no glory."
>>>    2. What does "if it ain't broke, don't fix it" really mean?
>>>    <https://szabgab.com/what-does--if-it-aint-broke-dont-fix-it--really-mean.html>
>>>    3. If you never change anything, your project won't progress.
>>>
>>> ----------
>>> While you may break some functionality by updating to 18.04.04 , you
>>> also risk being affected by known security vulnerabilities (which may also
>>> break functionality sooner or later). There is a concept of
>>> https://en.wikipedia.org/wiki/Technical_debt .
>>>
>>> Regarding updating to 20.04, it is likely more time consuming and may
>>> have more breaking changes, and you may not need all the newest and
>>> shiniest software versions there, and you may wish to only update to ubuntu
>>> 22.04/etc. I didn't hear of too many horror stories of ubuntu 20.04 being
>>> unusable or unstable, but I'm quite out of the loop.
>>>
>>> Good luck!
>>>
>>>
>>>
>>>> Thanks,
>>>> Uri.
>>>> אורי
>>>> uri at speedy.net
>>>> _______________________________________________
>>>> Linux-il mailing list
>>>> Linux-il at cs.huji.ac.il
>>>> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
>>>>
>>>
>>>
>>> --
>>> Shlomi Fish https://www.shlomifish.org/
>>>
>>> Buddha has the Chuck Norris nature.
>>>
>>> Please reply to list if it's a mailing list post - http://shlom.in/reply
>>> .
>>>
>> _______________________________________________
>> Linux-il mailing list
>> Linux-il at cs.huji.ac.il
>> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
>>
>
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