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#1 2006-10-21 06:02:29

ravisghosh
Member
From: Intergalactic Spaces
Registered: 2006-10-12
Posts: 516
Website

Which packages are not required?

Hi Friends,

Initially, I was trying to install arch by just installing base and then going ahead, but was unable to get X. Then, I installed base+X11+X11 libs+ X11 something (dont remember..) and after a lot of trouble, finally got XFCE installed and running (though still problems with fontsand have posted another query in desktop environment section). I have noticed that in doing so, I have installed a lot of things that are not required for my system, like xf86-input-bla bla and xf86-vide-bla bla, I know that only a few of them are required, but i'm afraid of uninstalling anything given that could break the system.

So, is there a way to determine which packages are being used by my system and which are required so that I can free up some space and make my box more slim.

Please post your opinions. Thanks in advance.

Ravi S Ghosh

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#2 2006-10-21 09:12:47

Romashka
Forum Fellow
Registered: 2005-12-07
Posts: 1,054

Re: Which packages are not required?

You should install only base packages. This is highly recommended.
Then

pacman -Syu
pacman -S xorg-server xorg-clients xf86-input-keyboard xf86-input-mouse xf86-video-<your>
pacman -S ttf-ms-fonts ttf-dejavu <other>
pacman -S xfce4 xfce4-goodies
X -configure

Then you'll have xorg.conf.new in your home directory. Copy it to /etc/X11/xorg.conf and modify it to your needs. Search the wiki for pages about installing/configuring Xorg/fonts/Xfce etc.


to live is to die

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#3 2006-10-21 09:14:54

Romashka
Forum Fellow
Registered: 2005-12-07
Posts: 1,054

Re: Which packages are not required?

ravisghosh wrote:

So, is there a way to determine which packages are being used by my system and which are required so that I can free up some space and make my box more slim.

There's no way to tell which packages are "used by your system" because Pacman doesn't know which packages you use and which are simply lying there.


to live is to die

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#4 2006-10-21 10:04:02

detto
Member
Registered: 2006-01-23
Posts: 510

Re: Which packages are not required?

To the xorg-server thing i have one comment: I always install it with

pacman -S xorg

because this is a small metapackage which includes xorg-server, xf86-input-keyboard xf86-input-mouse xf86-video-vesa and is also just bare minimum imo but you can be sure that things work afterwards smile
just my 2c,

cheers,
deTTo

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#5 2006-10-21 14:48:14

dolby
Member
From: 1992
Registered: 2006-08-08
Posts: 1,581

Re: Which packages are not required?

just a note. not all packages from base are required in many occasions. for example lilo if u use grub or wireless toolz if u dont have any in your pc. etc..


There shouldn't be any reason to learn more editor types than emacs or vi -- mg (1)
[You learn that sarcasm does not often work well in international forums.  That is why we avoid it. -- ewaller (arch linux forum moderator)

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#6 2006-10-21 15:24:27

FUBAR
Member
From: Belgium
Registered: 2004-12-08
Posts: 1,029
Website

Re: Which packages are not required?

Just do

pacman -Qe
pacman -Rs <unneeded>

Repeat those steps until you've removed all the packages you don't need.


A bus station is where a bus stops.
A train station is where a train stops.
On my desk I have a workstation.

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#7 2006-10-21 17:08:18

Romashka
Forum Fellow
Registered: 2005-12-07
Posts: 1,054

Re: Which packages are not required?

Pacman -Qe don't do what's needed. Search for orphans script on forums.


to live is to die

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#8 2006-10-21 20:33:27

FUBAR
Member
From: Belgium
Registered: 2004-12-08
Posts: 1,029
Website

Re: Which packages are not required?

[22:30:01|foo@bar:~] $ pacman -Q --help
usage:  pacman {-Q --query} [options] [package]
options:
  -e, --orphans       list all packages that were explicitly installed
                      and are not required by any other packages

o_O


A bus station is where a bus stops.
A train station is where a train stops.
On my desk I have a workstation.

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#9 2006-10-21 21:12:45

patroclo7
Member
From: Bassano del Grappa, ITALY
Registered: 2006-01-11
Posts: 913

Re: Which packages are not required?

FUBAR wrote:
[22:30:01|foo@bar:~] $ pacman -Q --help
usage:  pacman {-Q --query} [options] [package]
options:
  -e, --orphans       list all packages that were explicitly installed
                      and are not required by any other packages

o_O

There are two notions of "orphan". As it is meant in the orphan script, a package is an orphan iff it is not needed in a working system. This is an intrinsically vague target, which can be focussed only through a partial heuristics.

In the sense of the -Qe pacman option, an app is an orphan iff it is not a dependency of another package. In this sense, many vital apps -- explicitly installed -- in a system are orphans.

However, it is true that pacman -Qe allows to have a list of the top-level apps (the stuff you know what it is, without the libraries etc.). If you identify in the list of pacman orphans the apps you do not need and then remove them with 'pacman -Rsc', you clean your system pretty well.

However, you should be careful, many problems can be foreseen when you do not know what it is the package you are removing.


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