Re: Debian GNU/Linux 9 (stretch) was broken after upgraded from stretch-backports.
Στις 2020-02-18 12:41, Anastasios Lisgaras έγραψε:
On 2/17/20 6:41 PM, didier.gaumet@gmail.com wrote:
Στις 2020-02-17 13:17, Anastasios Lisgaras έγραψε:
[...]
1. I created this file :
/etc/apt/sources.list.d/stretch-backports.list
(https://pastebin.com/raw/YM11TDer)
2. I also created this file :
/etc/apt/preferences.d/89_stretch-backports_default
(https://pastebin.com/raw/F6vjDEgh).
and then I ran :
```
apt update && apt list --upgradable && apt dist-upgrade && apt-get
autoremove -y && apt-get autoclean -y && apt-get clean
[...]
The problem is that after restarting the computer could not boot
properly and especially with a graphical interface.
[...]
- Is the upgrade to blame? Hasn't it been done correctly (basically
it
definitely won't have been done correctly) ?
- Do you think I should add it here
`/etc/apt/sources.list.d/stretch-backports.list`
(https://pastebin.com/raw/YM11TDer) the 'contrib non-free' at the
end
of
the two sources?
What is to blame and what should I do to fix it?
[...]
Hello,
As far as I understand it:
- Backports repository is not intended as an ordinary repo from which
you can install all the packages.Its purpose is to let the user
install selected packages for which there is a need for a more recent
version (option -t). Installing all packages from backports may lead
to problems.
- By default your ordinary repo has a 500 priority and backports a 100
priority: when you set up a 500 priority for backports, it means that
that backports has priority over your ordinary repo, because the
version numbers are higher.
- If your ordinary (Oldstable or Stretch, in your case) repo line (or
sources.list.d file) in sources.list mentions "contrib non-free" it is
preferable to mention it too for the backports line. Then, generally,
if you use a backports kernel, you will want to use also the backports
firmwares instead of the ordinary ones.
the backports page of the wiki:
https://wiki.debian.org/Backports
Nektarios & didier thank you both for your time, interest and help!
On 2/17/20 4:32 PM, Nektarios Katakis wrote:
You can investigate if the `graphical.target` unit is activated and
if the programs relying on it are installed.
What exactly do you mean by saying `graphical.target` ?
If you check the output of `systemctl status graphical.target` you ll
see
it s a systemd target and whether it s activated or not. The related
file
in `/lib/systemd/system/graphical.target` will also point you to
related/
needed services for the graphical target.
You can start from there and check if those targets/services are
enabled.
Also if they failed in your last boot (`systemctl list-units
--state=failed`).
Your view is certainly interesting and probably right (I've thought
about it too), but first I would like to make sure the whole system is
in the right state/point.
According to the above data, and after the update/upgrade I did, all
packages are the to right "stretch-backports" point/state ?
Or I should take action to set it up properly ? Is it better to leave
from "stretch-backports" ?
Going from Debian GNU/Linux 9 (stretch) to Debina GNU/Linux 10 (buster)
(without format) how risky can it be?
Upgrading from 9 to 10 should be straight forward. In my case I ensured
that
my system is up to date with the main repositories, that I had enough
free space
and then modified the sources.list to buster repos and did the apt
dist-upgrade.
That being said I didnt have any packages installed manually or on hold
(`apt-mark showhold`).
Check for a very extensive guide here
https://www.debian.org/releases/stable/i386/release-notes/ch-upgrading.en.html
On 2/17/20 6:41 PM, didier.gaumet@gmail.com wrote:
- Backports repository is not intended as an ordinary repo from which
you can install all the packages.Its purpose is to let the user install
selected packages for which there is a need for a more recent version
(option -t). Installing all packages from backports may lead to
problems.
You are absolutely right! That's exactly how I started. At first I
wanted to put the "stretch-backports" sources, to install specific
packages from them ( specifically only the `nautilus-nextcloud` package
), but then I changed my mind and played a lot more risky, because in
the end I updated my whole system.
On 2/17/20 6:41 PM, didier.gaumet@gmail.com wrote:
- By default your ordinary repo has a 500 priority and backports a 100
priority: when you set up a 500 priority for backports, it means that
that backports has priority over your ordinary repo, because the
version
numbers are higher.
Thank you so much for explaining the priorities - I understood that
too.
The reason I was thinking of finally updating my entire system, is
because I thought that the `nautilus-nextcloud` package it would
probably affect the whole in general GNOME, that is why I suppose that
maybe they were more correct a more complete migration.
The packages in the backports in general should work with the ones
installed
from the stable repos. You can use them to selectively install what you
need
from there.
On 2/17/20 6:41 PM, didier.gaumet@gmail.com wrote:
- If your ordinary (Oldstable or Stretch, in your case) repo line (or
sources.list.d file) in sources.list mentions "contrib non-free" it is
preferable to mention it too for the backports line. Then, generally,
if
you use a backports kernel, you will want to use also the backports
firmwares instead of the ordinary ones.
Thank you for your answer. About "backports firmwares" what should I
do?
What do you have to recommend me?
( I didn't know that at all )
Finally, a very important question:
Can I go back to where I was before the update ( with only stretch
source ) ?
You should definitely be able to do this since the `apt upgrade` command
you
ran ended without any errors (your system is not broken anyhow).
I mention this because the official documentation itself (and you)
states that you do not recommend what I did.
There is a way to "I pull a rope" and go back to my sturdy/robust port
of stretch repositories/resources ?
Simply revert the changes sources (apt edit-sources) and
`apt update && apt upgrade`
List installed backports :
dpkg-query -W | grep '~bpo' : https://pastebin.com/raw/UXLKrKvA
systemctl status of `gnome` and `graphical.target` ( if you find it
inderest ) : https://pastebin.com/raw/1WLe87mJ
---
Regards,
Nektarios Katakis
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