Re: Downgrade to Stable

[songbird]

Dan Ritter wrote:
...
> This is not supported. Upgrades work in one direction.
>
> However, if you want to try:
>
> http://linuxmafia.com/faq/Debian/downgrade.html

  that is a very ancient cite and the many caveats
in there make me think that it is a huge waste of
time for an actual system that's been used for any
length of time...

  since OP doesn't specify details we don't know
how many systems/packages involved or the amount of
data/other complexities.


  songbird

Re: Downgrade to Stable

[songbird]

Rodolfo Medina wrote:
> Hi all...
>
> A few days ago I downgraded my Debian installation from Sid to Stable by
> changing, in /etc/apt/sources list, all occurrences of `unstable' to `stable'
> in:
>
> --
> deb http://ftp.uk.debian.org/debian/ unstable main
> deb-src http://ftp.uk.debian.org/debian/ unstable main
>
> # non-free
> deb http://ftp.debian.org/debian/ unstable main contrib non-free
> --
>
> and then doing
>
> # aptitude update
> # aptitude install dpkg apt aptitude
> # aptitude full-upgrade
>
> But still, at log in in tty console, there is:
>
> Debian GNU/Linux buster/sid lennovo tty1
>
> How come?

  hello, this is rarely supported fully in many
packages (hard enough to just insure a forward
upgrade path for all the versions possible).

  i don't recommend this because you may need to 
purge and reinstall every package and there may 
still be odd things left-over (configuration 
changes, data for users, caches, logs, etc.).

  this is why it is usually a much better idea to
set up a different partition or USB stick or 
something to load it on and then you can move 
data/files/whatever over as you need it and then 
eventually you can wipe the old partition.

  best to make complete backups of everything 
first.


  songbird

Re: Downgrade to Stable

[Vincent Lefevre]

On 2018-09-04 12:31:03 +0200, Pétùr wrote:
> As suggested by the link of Dan Ritter, you can change the behavior for
> apt and force the installation of a selected version of packages (ie
> stable). However, I do not recommend this. For example, there is no
> guarantee the configuration of packages can be downgraded. It is much
> simpler to backup data and reinstall stable.

Agreed. Downgrading some individual packages to stable (e.g. due
to a bug) is often fine (manual checks/fixes might be needed),
but I would never downgrade a full system.

If one goal was to keep some configuration changes in /etc, then
backup /etc, but do not restore it. Just do a recursive diff and
see what may need to be changed again.

-- 
Vincent Lefèvre  - Web: 
100% accessible validated (X)HTML - Blog: 
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

Re: Downgrade to Stable

[Pétùr]

> On Tue, Sep 04, 2018 at 10:23:08AM +0200, Rodolfo Medina wrote:

>> A few days ago I downgraded my Debian installation from Sid to Stable by
>> changing, in /etc/apt/sources list, all occurrences of `unstable' to `stable'
[...
>> But still, at log in in tty console, there is:
>>
>> Debian GNU/Linux buster/sid lennovo tty1
>>
>> How come?

The default behavior for apt is to install new versions of packages.
When changing sid by stable in /etc/apt/sources.list, apt will wait (a
long time) for a new version of a package. So if you install Sid, change
for stable, you have to wait few years for one or two new stables
versions, then you will have a stable installation...

On 04/09/2018 12:07, Dan Ritter wrote:

> However, if you want to try:
> 
> http://linuxmafia.com/faq/Debian/downgrade.html

As suggested by the link of Dan Ritter, you can change the behavior for
apt and force the installation of a selected version of packages (ie
stable). However, I do not recommend this. For example, there is no
guarantee the configuration of packages can be downgraded. It is much
simpler to backup data and reinstall stable.

Pétùr

Re: Downgrade to Stable

[Dan Ritter]

On Tue, Sep 04, 2018 at 10:23:08AM +0200, Rodolfo Medina wrote:
> Hi all...
> 
> A few days ago I downgraded my Debian installation from Sid to Stable by
> changing, in /etc/apt/sources list, all occurrences of `unstable' to `stable'
> in:
> 
> --
> deb http://ftp.uk.debian.org/debian/ unstable main
> deb-src http://ftp.uk.debian.org/debian/ unstable main
> 
> # non-free
> deb http://ftp.debian.org/debian/ unstable main contrib non-free
> --
> 
> and then doing
> 
> # aptitude update
> # aptitude install dpkg apt aptitude
> # aptitude full-upgrade
> 
> But still, at log in in tty console, there is:
> 
> Debian GNU/Linux buster/sid lennovo tty1
> 
> How come?

This is not supported. Upgrades work in one direction.

However, if you want to try:

http://linuxmafia.com/faq/Debian/downgrade.html

-dsr-

Re: Downgrade to Stable

[Kevin DAGNEAUX]

Hi,

Le 04/09/2018 à 10:23, Rodolfo Medina a écrit :

Hi all...

A few days ago I downgraded my Debian installation from Sid to Stable by
changing, in /etc/apt/sources list, all occurrences of `unstable' to `stable'
in:

--
deb http://ftp.uk.debian.org/debian/ unstable main
deb-src http://ftp.uk.debian.org/debian/ unstable main

# non-free
deb http://ftp.debian.org/debian/ unstable main contrib non-free
--

and then doing

# aptitude update
# aptitude install dpkg apt aptitude
# aptitude full-upgrade

But still, at log in in tty console, there is:

Debian GNU/Linux buster/sid lennovo tty1

How come?

Thanks,

Rodolfo


If i remember correctly, you can't do a downgrade.

Kevin

<>

Re: downgrade to stable

[Richard Hector]

On Mon, Mar 29, 2004 at 07:21:28PM +0300, Costas Magkos wrote:

 I think I will keep the current installation, 
 following your advice ;-) .

If you're doing that, it might pay to make sure your sources.list points
at 'sarge' rather than 'testing', to avoid an inadvertent upgrade to
sarge+1 in the future ...

Richard


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Re: downgrade to stable

[Costas Magkos]

I have tried this before writing to the list. I changed the sources.list 
file to point only to the stable sources and I did an apt-get update. 
But I got:

# apt-get dist-upgrade
Reading Package Lists... Done
Building Dependency Tree... Done
Calculating Upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
~kmag

On 29/03/04 17:32, Tibor Repasi wrote:

replace /etc/apt/sources.list with the old one, do an dist-upgrade 
again and have fun

I made this ones ... it was painfull, but successful at the end.

Regads,
RT
Costas Magkos wrote:

Hi debian people,

Is there a way to downgrade to stable, after having apt-get 
dist-upgrade to testing?

~kmag

P.S. people of debian-user please CC me.

Costas Magkos
Internet Systematics Lab
NCSR Demokritos
Athens. Greece







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Re: downgrade to stable

[Clive Menzies]

On (29/03/04 16:54), Costas Magkos wrote:
 
 Hi debian people,
 
 Is there a way to downgrade to stable, after having apt-get dist-upgrade
 to testing?
 
 ~kmag
 
 P.S. people of debian-user please CC me.
 
 Costas Magkos
Hi

Unless you really know what you are doing this is not advised - problems
will arise with broken dependancies etc.  However, testing (sarge) is
soon to become stable and replace woody.  Time estimates are unclear
currently but if you keep an eye on debian-announce you should see some
news in the next couple of weeks (according to Colin W)

Other than that a full reinstall is recommended but it may be worth
saving some of your more critical conf files etc.  Personally, I've
usually found a reinstall educational and an opportunity to make better
choices when setting up the system.

Good luck ;)

Clive
-- 
http://www.clivemenzies.co.uk
strategies for business


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Re: downgrade to stable

[Costas Magkos]

Hi Clive,

My only concern was the release schedule of sarge. Since this will be a 
production server, I would prefer to run a stable debian release. Well, 
I was more than happy to read Colin's latest posting on 
debian-devel-announce. I think I will keep the current installation, 
following your advice ;-) .

Anyway, this was not for nothing. Thanks to Maurizio, I discovered the 
/etc/apt/preferences file.

~kmag

On 29/03/04 18:33, Clive Menzies wrote:

On (29/03/04 16:54), Costas Magkos wrote:
 

Hi debian people,

Is there a way to downgrade to stable, after having apt-get dist-upgrade
to testing?
~kmag

P.S. people of debian-user please CC me.

Costas Magkos
   

Hi

Unless you really know what you are doing this is not advised - problems
will arise with broken dependancies etc.  However, testing (sarge) is
soon to become stable and replace woody.  Time estimates are unclear
currently but if you keep an eye on debian-announce you should see some
news in the next couple of weeks (according to Colin W)
Other than that a full reinstall is recommended but it may be worth
saving some of your more critical conf files etc.  Personally, I've
usually found a reinstall educational and an opportunity to make better
choices when setting up the system.
Good luck ;)

Clive
 



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