RE: Kickstart post install config

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On Mon, 9 Aug 2004, Anoop Bhat wrote:

Steve,

I replied regarding setting up a hardlink/softlink to the file in
/mnt/sysimage but that won't work because I won't be able to
softlink/hardlink /tmp/ks-script while its running.

so the alternative would be to setup another script and have that other
script excute in chrooted env and then exit and return back to the
non-chrooted post install system.

what do you think?

I found when using the kickstart stuff that the %post side of things was already done within a chroot environment.


A copy of my %post script was as follows

In this case I had a "changes" tgz file that I uncompressed from the cdrom into the chroot environment, I then used these files to customise my installation

(at this point as well the /dev directory did not appear to contain a lot of the standard devices, probably due to makedev init script not being run)

Please note - this was a very rushed quick and dirty script - it worked but if i had time to do things differently there would be quite a bit of cleaning up I'd do :-)


%post

# it appears we are in a chroot jail

# make cdrom device (hda)

mknod /tmp/cdrom b 3 0
mknod /dev/sda b 8 0
mkdir /mnt/cdrom

# mount it

mount /tmp/cdrom /mnt/cdrom

# uncompress the changes tgz onto the hard drive

cd /

echo "* Uncompressing TGZ file"
tar -zxf /mnt/cdrom/changes.tgz

echo "* Modifying system.."

# update the fwman and backup directorys

echo "- Copying fwman and backup directories.."
cp -a /changes/fwman/* /fwman/
cp -a /changes/backup  /backup

# update system files as needed

echo "- modifying /etc.."
cat /changes/etc/passwd >> /etc/passwd
cat /changes/etc/shadow >> /etc/shadow
cat /changes/etc/group >> /etc/group
cat /changes/etc/crontab >> /etc/crontab

cp -f /changes/etc/iptables.boot /etc/iptables.boot
cp -f /changes/etc/iptables.boot /etc/iptables.conf
cp -f /changes/etc/hosts /etc/hosts
cp -f /changes/etc/resolv.conf /etc/resolv.conf
cp -f /changes/etc/services /etc/services
cp -f /changes/etc/fstab /etc/fstab
cp -f /changes/etc/sysconfig/rhn/up2date /etc/sysconfig/rhn/up2date
cp -f /changes/etc/sysconfig/network-scripts/route-eth5 /etc/sysconfig/network-scripts/
cp -f /changes/etc/xinetd.d/autoton /etc/xinetd.d/autoton
cp -f /changes/etc/init.d/sme_firewall /etc/init.d/sme_firewall
cp -f /changes/etc/init.d/sme_netconfig /etc/init.d/sme_netconfig
cp -f /changes/etc/rc.sysinit /etc/rc.sysinit

# Setup symlinks for the iptables stuff
ln -s /sbin/iptables /usr/local/sbin/iptables
ln -s /sbin/iptables-save /usr/local/sbin/iptables-save
ln -s /sbin/iptables-restore /usr/local/sbin/iptables-restore

# Create home directories

USERID=1000
GROUPID=1000

for each in user1 user2 user3 user4; do
        mkdir /home/$each
        cp -a /etc/skel/.??* /home/$each
        chown -R $USERID:$GROUPID /home/$each
        USERID=$(($USERID+1))
        GROUPID=$(($GROUPID+1))
done

# setup the firstboot script

echo "- setting up first-boot.."
cp -f /changes/first-boot /etc/rc.d/rc3.d/S05first-boot
cp -f /changes/check-cd /etc/rc.d/rc3.d/S09check-cd
cp -f /changes/etc/rc.d/rc.local /etc/rc.d/rc.local

# eject CDROM
echo "- cleaning up.."

umount /mnt/cdrom

# delete the /tmp/cdrom file
rm -f /tmp/cdrom

# For some reason /dev/cdrom isn't being created - make it now
ln -s /dev/hda /dev/cdrom

# setup grub
rm -rf /boot
mkdir /boot
cp -a /changes/boot/* /boot/
sleep 1
grub-install /dev/sda



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