[Centos] Guide to stripping Centos 3

Sun Jan 16 00:56:41 UTC 2005
Chris Weisiger <cweisiger at i-55.com>

i can post my latest rpm list on my system i fyou like......that is how 
i install  centOS exactly....i do a minimal install then strip more rpms 
that i dont need
after the initial first boot.....

R P Herrold wrote:

>
> I responded to a post in the Dell poweredge mailing list earlier 
> today.  My answer was off the top of my head, with a bit of 
> experimentation.  The content may be useful in the Cenyos context as 
> well to admin's looking to strip the size of an install to the bare 
> bones.
>
> Comment welcomed. Can anyone see any packages which I have missed?
>
> -- Russ Herrold
>
> ---------- Forwarded message ----------
> Date: Sat, 15 Jan 2005 12:29:12 -0500 (EST)
> From: R P Herrold <herrold at owlriver.com>
> To: linux-poweredge at dell.com
> Subject: Re: dell-lnx-pe] Re: Stripping RHEL 3.0?
>
>> At 07:58 PM 1/14/2005 -0500, David Hubbard wrote:
>>
>>> Does anyone know of a good guide for stripping
>>> down RHEL 3.0?
>>
>   <snip>
>
>>>   Due to all the dependencies
>>> I can't find a way to actually strip RHEL in a way
>>> that leaves everything happy.
>>
>
> Great timing and a good question -- I was just building such a host.  
> I'll test for a bit to minimize size.  Kickstart and anaconda are your 
> friends.  Here is a quick guide:
>
>
> During each install, a file called 'ks.cfg' is left by anaconda in 
> /root/  At the end of this post, I include the ks.cfg file which will 
> build a stripped host.  I have done a couple test installs, and gone 
> through the resulting packagelist using;
>
>     rpm -qa --qf '%{size} %{name} \n' | sort -n | less
>
> to see what I could add with the '-' prefix at the bottom of the file.
>
> (I have left in there a couple 'conveneince packages' and I usually 
> add one extravagance -- I prefer 'konsole' to pop back as a remote 
> terminal and so pay its space penalty, but comment it out here)
>
> As I said, I 'went hunting' and trimmed it down to 465 M ; more 
> savings are possible.  The worst remaining mandatory 'size offenders' 
> in the install are:
>     glibc-common    42M
>     perl        27M
>     kernel        22M
> Not much more we can do there.
>
> But ... Once the install is done, turn off auditting:
>     chkconfig audit off
>     service audit stop
> and reclaim the LARGE (100M) amout of room these files eat up
>     cd /var/log/audit.d/
>     rm -f *
> Unfortunately the package is not deletable as there are dependency 
> issues.
>
> As I say. I then end up at: 465M
>
> Using a network install from a local mirror and a ks.cf file permits 
> 'gameing' to see what changed in the ks.cfg result in a given size 
> profile.  See my notes at:
>
>     http://www.owlriver.com/tips/pxe-install/
>
> for more information on setting up and debugging such an environment.  
> It permits experimentation with fast test installs (under ten minutes 
> per test shot, even on a low RAM host (64M)) to 'tune' for a desired 
> result.
>
> -- Russ Herrold
>
>
> [root at ftp kickstart]# cat  ks.cfg-Centos_34
> #
> #       Centos 34 server - built to be tiny as possible
> #
> install
> lang en_US.UTF-8
> langsupport --default en_US.UTF-8 en_US.UTF-8
> keyboard us
> mouse genericwheelps/2 --device psaux
> url --url ftp://10.16.33.105/pub/install/ftpinstall
> # xconfig --card "RIVA128" --videoram 4096 --hsync 31.5-35.1 --vsync 
> 50-61 --resolution 1280x800 --depth 24
> skipx
> network --device eth0 --bootproto dhcp
> # rootpw --iscrypted <elided>
> firewall --disabled
> # not yet in RHEL 3
> # selinux --disabled
> authconfig --enableshadow --enablemd5
> timezone America/New_York
> bootloader --location=mbr
> #       --append hdb=ide-scsi
> # The following is the partition information you requested
> # Note that any partitions you deleted are not expressed
> # here so unless you clear all partitions first, this is
> # not guaranteed to work
> clearpart --all --drives=hda
> part /boot --fstype ext3 --size=100 --ondisk=hda
> part / --fstype ext3 --size=1024 --grow --ondisk=hda
> part /var/spool --fstype ext3 --size=1024 --grow --ondisk=hda
> part /var/cache --fstype ext3 --size=1024 --grow --ondisk=hda
> part /var/log --fstype ext3 --size=1024 --grow --ondisk=hda
> part swap --size=128 --grow --maxsize=256 --ondisk=hda
>
> #       basically a unconfigured server - the new 2005 Centurion
> %packages
> kernel
> elinks
> grub
> joe
> lftp
> lynx
> rdate
> rpm-build
> rsync
> yum
> # kdebase
> -apmd
> -autofs
> -centos-yumcache
> -comps
> -cups
> -cups-libs
> -eal3-certification
> -eal3-certification-doc
> -finger
> -freetype
> -ipsec-tools
> -iptables
> -iptables-ipv6
> -irda-utils
> -iscsi-initiator-utils
> -isdn4k-utils
> -krb5-libs
> -krb5-workstation
> -krbafs-utils
> -kernel-pcmcia-cs
> -libwvstreams
> -mdadm
> -mgetty
> -mtr
> -nano
> -nfs-utils
> -pam_krb5
> -pam_smb
> -parted
> -portmap
> -raidtools
> -redhat-config-network-tui
> -redhat-config-securitylevel-tui
> -redhat-logos
> -redhat-menues
> -redhat-lsb
> -rpmdb-redhat
> -stunnel
> -sysreport
> -talk
> -tftp
> -specspo
> -vconfig
> -wireless-tools
> -wvdial
> -xinetd
> -ypbind
> -yp-tools
>
> #       If you use yum, you do not need:
> -up2date
> -up2date-update
>
> %post
> [root at ftp kickstart]#
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