druck  writes:
> On 28/08/2019 19:41, Martin Gregorie wrote:
>> I did exactly what it said in this page:
>>
>> https://www.raspberrypi.org/blog/buster-the-new-version-of-raspbian/
>>
>> and thought that running "sudo apt dist-upgrade" worked somewhat
>> differently to the Jessie -> Stretch upgrade - in particular because dist-
>> upgrade promptly pulled down a large selection of packages before
>> installing them (with periodic questions about how I wanted deal with
>> several specific packages), before completing the process with a reboot.
>
> That's the way every Debian based distro does it! All packages are
> download first on any upgrade, during installation some may ask
> questions when altering config files. A reboot is performed to ensure
> all the new packages are now being run
>
> You can get away without rebooting after minor upgrades, but you will
> have to restart anything application or service that has been
> upgraded, as otherwise the old versions will carry on running.

In particular you won’t get a new kernel without a reboot.

>> This is similar to the in-situ version upgrade that Fedora has used for
>> the last five years, i.e. not like the Wheezy->Jessie and Jessie->Stretch
>> upgrades, which IIRC were just a rather larger update and without an
>> immediate reboot being required.
>
> I don't recall Wheezy, Jessie and Stretch doing anything different
> than the above!

Indeed. It’s worked like that for decades.

--
https://www.greenend.org.uk/rjk/

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