CentOS - May 2016 - Reduce existing CentOS 7 installation to "Minimal install" - services?

On 05/06/2016 11:18 AM, Nicolas Kovacs wrote:
> Le 06/05/2016 13:50, Johnny Hughes a ?crit :
>> Maybe add a:
>>
>> yum groupinstall core
> 
> That did add a handful of packages indeed (as was already suggested in
> the previous answer), but the problem still persists.
> 
> After rebooting, the system hangs after mounting the /boot partition and
> then exits into emergency mode.
> 
> I'm puzzled.
> 
There actually are a couple more things than core in a minimal install
.. here is the current minimal list:

https://git.centos.org/blob/sig-core!comps.git/220ef7b59c95531d3752d4074ce673aa09792c67/c7-minimal-x86_64-RPMS.lst

some of those might not get installed every time (ie, disk encrypt may
not be on non-encrypted drives, etc.)

But it is a good starting point.

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Le 06/05/2016 18:31, Johnny Hughes a ?crit :
> There actually are a couple more things than core in a minimal install
> .. here is the current minimal list:
> 
>
https://git.centos.org/blob/sig-core!comps.git/220ef7b59c95531d3752d4074ce673aa09792c67/c7-minimal-x86_64-RPMS.lst
> 
> some of those might not get installed every time (ie, disk encrypt may
> not be on non-encrypted drives, etc.)
> 
> But it is a good starting point.
After some more trial and error, I managed to resolve the problem in a
pragmatic way by doing the following after purging the system:

# yum groupinstall "Core"
# yum groupinstall "Base"

So the missing culprit(s) must have been somewhere in the "Base"
package
group, or at least a dependency to one or more of its packages.

Cheers,

Niki

-- 
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On 07/05/16 23:16, Nicolas Kovacs wrote:
> After some more trial and error, I managed to resolve the problem in a
> pragmatic way by doing the following after purging the system:
> 
> # yum groupinstall "Core"
> # yum groupinstall "Base"
> 
> So the missing culprit(s) must have been somewhere in the "Base"
package
> group, or at least a dependency to one or more of its packages.
Rather than remove them and add them back use yum shell to just remove
the packages not in base or core:

yum shell
remove *
install kernel @core @base
run
quit


Peter

Le 06/05/2016 18:31, Johnny Hughes a ?crit :
> There actually are a couple more things than core in a minimal install
> .. here is the current minimal list:
> 
>
https://git.centos.org/blob/sig-core!comps.git/220ef7b59c95531d3752d4074ce673aa09792c67/c7-minimal-x86_64-RPMS.lst
> 
> some of those might not get installed every time (ie, disk encrypt may
> not be on non-encrypted drives, etc.)
> 
> But it is a good starting point.
After some more fiddling, my problem is solved. Here's my little script:

https://github.com/kikinovak/centos/blob/master/7.x/scripts/00-elaguer-paquets.sh

Any existing CentOS installation (GNOME, KDE, Web Server, etc.) can be
stripped down to a minimal install by simply running it. I've tried this
with different scenarios, and it works perfectly.

Thank you everybody for your input.

Niki

-- 
Microlinux - Solutions informatiques durables
7, place de l'?glise - 30730 Montpezat
Web  : http://www.microlinux.fr
Mail : info at microlinux.fr
T?l. : 04 66 63 10 32

On Wed, May 11, 2016 at 09:08:03PM +0200, Nicolas Kovacs
wrote:
> Le 06/05/2016 18:31, Johnny Hughes a ?crit :
> > There actually are a couple more things than core in a minimal install
> > .. here is the current minimal list:
> > 
> >
https://git.centos.org/blob/sig-core!comps.git/220ef7b59c95531d3752d4074ce673aa09792c67/c7-minimal-x86_64-RPMS.lst
> > 
> > some of those might not get installed every time (ie, disk encrypt may
> > not be on non-encrypted drives, etc.)
> > 
> > But it is a good starting point.
> 
> After some more fiddling, my problem is solved. Here's my little
script:
> 
>
https://github.com/kikinovak/centos/blob/master/7.x/scripts/00-elaguer-paquets.sh
> 
> Any existing CentOS installation (GNOME, KDE, Web Server, etc.) can be
> stripped down to a minimal install by simply running it. I've tried
this
> with different scenarios, and it works perfectly.
> 
> Thank you everybody for your input.
> 
> Niki
not that I'm wanting to strip down my C7, I'm wondering how that
works if one has installed the Mate desktop from epel ?

-- 
---- Fred Smith -- fredex at fcshome.stoneham.ma.us
-----------------------------
                         God made him who had no sin
                      to be sin for us, so that in him
                 we might become the righteousness of God."
--------------------------- Corinthians 5:21 ---------------------------------