CENTOS Server CD project - Revision history

Kamran at 07:08, 13 June 2011

2011-06-13T07:08:28Z

← Older revision		Revision as of 07:08, 13 June 2011
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	Please send your thoughts/comments to: kamran at wbitt dot com.		Please send your thoughts/comments to: kamran at wbitt dot com.

-	~~The next related article~~ is: [[~~Custom Linux bootable CD~~]]	+	Note: This document is out dated and is superseded by the following two:
		+
		+	* [[CentOS 5.5 x86 64 Hypervisor Edition (Minimal)]]
		+	* [[CentOS 5.5 i386 Webserver Edition (Minimal)]]
		+

	===Why Server CD?===		===Why Server CD?===

Kamran: /* Creating the "core" install-tree from a http site */

2010-11-28T20:42:34Z

Creating the "core" install-tree from a http site

← Older revision		Revision as of 20:42, 28 November 2010
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	<pre>		<pre>
-	for file in $(cat /tmp/minivm/installed-rpms.~~tmp~~); do	+	for file in $(cat /tmp/minivm/installed-rpms.txt); do
	wget http://192.168.0.1/CentOS-5.4-x86_64/CentOS/${file}.rpm \		wget http://192.168.0.1/CentOS-5.4-x86_64/CentOS/${file}.rpm \
	--directory-prefix=/tmp/centos-mini/CentOS/ --no-parent \		--directory-prefix=/tmp/centos-mini/CentOS/ --no-parent \

Kamran: /* Creating the "core" install-tree, the easy way */

2010-11-28T20:41:38Z

Creating the "core" install-tree, the easy way

← Older revision		Revision as of 20:41, 28 November 2010
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	<pre>		<pre>
-	[root@xenlab ~]# tail /tmp/minivm/installed-rpms.~~tmp~~	+	[root@xenlab ~]# tail /tmp/minivm/installed-rpms.txt
	which-2.16-7.x86_64		which-2.16-7.x86_64
	words-3.0-9.1.noarch		words-3.0-9.1.noarch
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-	[root@xenlab ~]# for file in $(cat /tmp/minivm/installed-rpms.~~tmp~~); do	+	[root@xenlab ~]# for file in $(cat /tmp/minivm/installed-rpms.txt); do
	cp -v /var/www/html/CentOS-5.4-x86_64/CentOS/"${file}.rpm" \		cp -v /var/www/html/CentOS-5.4-x86_64/CentOS/"${file}.rpm" \
	/var/www/html/CentOS-5.4-x86_64-core/CentOS/		/var/www/html/CentOS-5.4-x86_64-core/CentOS/

Kamran: /* Creating the "core" install-tree, the easy way */

2010-11-28T20:25:03Z

Creating the "core" install-tree, the easy way

← Older revision		Revision as of 20:25, 28 November 2010
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	</pre>		</pre>

-	~~I removed the original installed-rpms.tmp and renamed installed-rpms.txt back to installed-rpms.tmp . Sounds like a silly step. (Will update the entire text later on to adjust this new change.)~~	+	The contents of "installed-rpms.tmx" file are here: <b>[[Core Packages List CentOS-5.4-x86 64]]</b>
-		+
-	The contents of "installed-rpms.~~tmp~~" file are here: <b>[[Core Packages List CentOS-5.4-x86 64]]</b>	+
-		+

	This is good enough. However, I am too much irritated by seeing bluetooth, cups, x11, and similar packages being part of the core installation. So I went one step further, and started deleting packages using yum, in a polite fashion, from this VM. This way, I was able to delete some packages, which I consider un-necessary for an installation, where only a web-server is the only desired service to run, without any backend database. (Which was the case with me.). After this surgery, I was able to bring down the disk usage to about 750 MB. And of-course, fewer number of packages. (About 118 less rpms!). I can use that in the %post to delete the un-necessary RPMs!		This is good enough. However, I am too much irritated by seeing bluetooth, cups, x11, and similar packages being part of the core installation. So I went one step further, and started deleting packages using yum, in a polite fashion, from this VM. This way, I was able to delete some packages, which I consider un-necessary for an installation, where only a web-server is the only desired service to run, without any backend database. (Which was the case with me.). After this surgery, I was able to bring down the disk usage to about 750 MB. And of-course, fewer number of packages. (About 118 less rpms!). I can use that in the %post to delete the un-necessary RPMs!

Kamran: /* Creating the "core" install-tree, the easy way */

2010-11-28T20:23:28Z

Creating the "core" install-tree, the easy way

← Older revision		Revision as of 20:23, 28 November 2010
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	nash-5.1.19.6-54.x86_64		nash-5.1.19.6-54.x86_64
	</pre>		</pre>
		+
		+	<pre>
		+	cat installed-rpms.tmp \| cut -d: -f2 > installed-rpms.txt
		+	</pre>
		+
		+	I removed the original installed-rpms.tmp and renamed installed-rpms.txt back to installed-rpms.tmp . Sounds like a silly step. (Will update the entire text later on to adjust this new change.)

	The contents of "installed-rpms.tmp" file are here: <b>[[Core Packages List CentOS-5.4-x86 64]]</b>		The contents of "installed-rpms.tmp" file are here: <b>[[Core Packages List CentOS-5.4-x86 64]]</b>

Kamran at 22:23, 15 July 2010

2010-07-15T22:23:59Z

← Older revision		Revision as of 22:23, 15 July 2010
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-	Please send your thoughts/comments on kamran at wbitt dot com.	+	Please send your thoughts/comments to: kamran at wbitt dot com.

	The next related article is: [[Custom Linux bootable CD]]		The next related article is: [[Custom Linux bootable CD]]

Kamran at 22:22, 15 July 2010

2010-07-15T22:22:35Z

← Older revision		Revision as of 22:22, 15 July 2010
Line 1:		Line 1:
		+	Please send your thoughts/comments on kamran at wbitt dot com.
		+
	The next related article is: [[Custom Linux bootable CD]]		The next related article is: [[Custom Linux bootable CD]]

Kamran: /* Creating the "core" install-tree, the easy way */

2010-07-03T19:09:22Z

Creating the "core" install-tree, the easy way

← Older revision		Revision as of 19:09, 3 July 2010
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	===Creating the "core" install-tree, the easy way===		===Creating the "core" install-tree, the easy way===
-	The idea is simple. I have a CENTOS 5.4 DVD already downloaded at home (and office). To get the list of packages, I did a "core" install of CENTOS on a XEN virtual machine. (I used a kickstart file with @core mentioned in the "%packages" section. Analysing its "/root/install.log", I quickly figured out which packages got installed. (clever me!). So this is the list of packages I need from the "CentOS" directory of the install-tree. (It's about 443 packages). This resulted in an installation of about 950MB in size.	+	The idea is simple. I have a CENTOS 5.4 DVD already downloaded at home (and office). [Note: You can also do this using just CD1 of the CENTOS/RHEL distribution]. To get the list of packages, I did a "core" install of CENTOS on a XEN virtual machine. (I used a kickstart file with @core mentioned in the "%packages" section. Analysing its "/root/install.log", I quickly figured out which packages got installed. (clever me!). So this is the list of packages I need from the "CentOS" directory of the install-tree. (It's about 443 packages). This resulted in an installation of about 950MB in size.

	Here is how I used (install.log) to generate the list of required pacakges in my repository.		Here is how I used (install.log) to generate the list of required pacakges in my repository.

Kamran: /* References/Further Reading */

2010-07-03T18:51:29Z

References/Further Reading

← Older revision		Revision as of 18:51, 3 July 2010
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	===References/Further Reading===		===References/Further Reading===
	Some smart people have already done the bootable CD / custom CD part. Below are some links for reference:		Some smart people have already done the bootable CD / custom CD part. Below are some links for reference:
-

	# http://people.redhat.com/rkeech/custom-distro.txt , which is now totally out-dated.		# http://people.redhat.com/rkeech/custom-distro.txt , which is now totally out-dated.

Kamran: /* ToDo */

2010-07-03T18:51:05Z

ToDo

← Older revision		Revision as of 18:51, 3 July 2010
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	===ToDo===		===ToDo===
-	I will make this available in few days on http://downloads.wbitt.com. (God Willing). Please note that ~~at the moment,~~ this is not a bootable CD ~~image. It~~ is ~~a fully functional~~ install tree, which would require you to use a kickstart with only three entries in the %packages section.	+	I will make this available in few days on http://downloads.wbitt.com. (God Willing). Please note that this is not a bootable CD, it is just an install tree, which would require you to use a kickstart with only three entries in the %packages section.

	<pre>		<pre>
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	Modifying the comps.xml and updating the repository data, so far is very exciting and geeky, BUT very painful procedure.		Modifying the comps.xml and updating the repository data, so far is very exciting and geeky, BUT very painful procedure.

-	This ~~should be~~ usable. I ~~will install a VM in a couple of days~~ and ~~confirm that here~~.	+	This is usable and I have successfully installed few (real and virtual) machines with it.

-	~~====Modifying comps~~.~~xml====~~	+	P.S. The procedure to make a bootable CD out of this install tree is now complete, tested and made available here: [[Custom Linux bootable CD]]. So the bootable CD is no more under a ToDo!!!
-	~~comps~~.~~xml has gazillion languages represented in it.~~	+
-		+
-	~~<pre>~~	+
-	~~[kamran@test CentOS-5.4-x86_64-test]$ grep -v xml~~:~~lang repodata/comps.xml > /tmp/no-lang.comps.xml~~	+
-		+
-	[~~kamran@test CentOS-5.4-x86_64-test~~]~~$ wc -l /tmp/no-lang~~.~~comps.xml~~	+
-	~~2607 /tmp/~~no~~-lang.comps.xml~~	+
-		+
-	~~[kamran@test CentOS-5.4-x86_64-test]$ wc -l repodata/comps.xml~~	+
-	~~11418 repodata/comps.xml~~	+
-	~~</pre>~~	+
-		+
-	~~About 9000 lines removed~~! ~~I wonder if it will work without any Language?~~!	+

	===Packages which can be removed from @core===		===Packages which can be removed from @core===