Devin Atencio wrote:

I would like to how how I can take the CentOS 4.4 Server Cd for example and modify the ISO to put on my anaconda-ks.cfg file and then modify the kernel parameters to automatically load the anaconda-ks.cfg file so that I can create a CD that I just stick into my machine it will format the drive, install the basic configuration I like without asking any questions. I need to install like 20 machines and I wanted to basically just stick a CD in the drive and let it do it's thing.

Any help on how to accomplish this would be appreciated.

Here's how I did it for RHEL CD's

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Construct a single DVD from the four RHEL CDRom's

Insert & mount CD1

# mkdir /DVD # mount /dev/cdrom /media/cdrecorder

Copy cd1 to /DVD

# cd /media/cdrecorder # tar cf - . | (cd /DVD ; tar xvf - .) # cd / # eject cdrom

Carry out the above action for CD 2-4

After all CD's have been copied.

Correct the .discinfo file to reference all four disks.

# cd /DVD # vi .discinfo

Ensure line 4 has 1,2,3,4 A working .discinfo should be as follows.

# cat .discinfo 1141417589.425945 Red Hat Enterprise Linux 4 i386 1,2,3,4 RedHat/base RedHat/RPMS RedHat/pixmaps

Create the bootable ISO file. (all on one line)

# mkisofs -A "RHEL/4.3 i386 3AS" -o DVD.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -J -v -T /DVD

Burn the DVD.iso as an image not a file.

References

http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/x8664-multi- install-guide/s1-steps-install-cdrom.html

Modify the DVD to include custom kickstart scripts.

Create the /DVD tree as per the previous steps.

The default files read on boot up of an RH install CDRom are located in /isolinux/

To run custom kickstart scripts we need to modify the /isolinux/isolinux.cfg and add the kickstart file to the boot process. See here for kickstart script generation.

For each kickstart install we need to add 3 lines to the isolinux.cfg file.

A label line - This is the identifier you type at the linux boot prompt A kernel line - This does not change A append line - This is where we tell the boot process to use a kickstart file.

Firstly backup the original file.

# cp /DVD/isolinux/isolinux.cfg /DVD/isolinux/isolinux.cfg.orig

Now edit and add our custom kickstart file.

# vi /DVD/isolinux/isolinux.cfg

Add

label myboot1 kernel vmlinuz append initrd=initrd.img ramdisk_size=8192 ks=cdrom:/ks.cfg

This will enable you to type myboot1 at the boot prompt which will call the ks.cfg located in the / of the DVD disk.

Multiple kickstart files can be added by using different label and append lines.

For Example:

label myboot1 kernel vmlinuz append initrd=initrd.img ramdisk_size=8192 ks=cdrom:/ks1.cfg label myboot2 kernel vmlinuz append initrd=initrd.img ramdisk_size=8192 ks=cdrom:/ks2.cfg

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Have fun.

Dean