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Re: Looking for inspiration/advice/best practices on system upgrade

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  Re: Looking for inspiration/advice/best practices on system upgrade Michel Verdier <mv524@free.fr> - 2023-04-24 19:10 +0200
    Re: Looking for inspiration/advice/best practices on system upgrade Timothy M Butterworth <timothy.m.butterworth@gmail.com> - 2023-04-24 23:10 +0200

#257540 — Re: Looking for inspiration/advice/best practices on system upgrade

Le 24 avril 2023 DdB a écrit :

> 1. Upgrade from current configuration using upgrade path tools (apt) and
> plan only one step (going to bullseye) at a time, eventually having to
> upgrade a second time later.

Usually this is the safest way. But why don't you upgrade sooner to
bullseye ? Do you have some problematic packages ?

> 2. Install a fresh bullseye and try to manually make it as similar as
> can be to my current workhorse

The more you customized your system the harder it will be

> From my past experiences, i recall one problem, that i am still
> suffering from: the file group and user owners, that reside on a
> different disk set (on a ZFS pool, to be more precise). In order to
> alleviate the problem, i did at one point fetch an older /etc/group and
> passwd file from a backup and created a mess. I'd love to straigthen
> this out now.

If you need to you should only change manually your userid/groupid and
don't change system ids. Replacing entire passwd is usually a bad idea.
Also you should check your user/group are conforming to the minumum
defined in /etc/login.defs

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#257550

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On Mon, Apr 24, 2023 at 1:06 PM Michel Verdier <mv524@free.fr> wrote:

> Le 24 avril 2023 DdB a écrit :
>
> > 1. Upgrade from current configuration using upgrade path tools (apt) and
> > plan only one step (going to bullseye) at a time, eventually having to
> > upgrade a second time later.
>

https://www.cyberciti.biz/faq/update-upgrade-debian-10-to-debian-11-bullseye/


Usually this is the safest way. But why don't you upgrade sooner to
> bullseye ? Do you have some problematic packages ?
>
> > 2. Install a fresh bullseye and try to manually make it as similar as
> > can be to my current workhorse
>
> The more you customized your system the harder it will be
>
> > From my past experiences, i recall one problem, that i am still
> > suffering from: the file group and user owners, that reside on a
> > different disk set (on a ZFS pool, to be more precise). In order to
> > alleviate the problem, i did at one point fetch an older /etc/group and
> > passwd file from a backup and created a mess. I'd love to straigthen
> > this out now.
>
> If you need to you should only change manually your userid/groupid and
> don't change system ids. Replacing entire passwd is usually a bad idea.
> Also you should check your user/group are conforming to the minumum
> defined in /etc/login.defs
>
>

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