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Old 08-16-2013, 09:02 AM   #1
tripialos
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Registered: Apr 2012
Posts: 162

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kickstart %post script help


I made a kickstart script and at the %post installation i would like to perform a few tasks.

1) Get a script from an ftp
2) chmod the sctipt
3) copy the script to /etc/init.d
4) chkconfig the script so when system reboots the script will be executed

I made the following kickstart script (post section)

Code:
%post --nochroot  --log=/mnt/sysimage/root/ks-post.log

/mnt/sysimage/usr/bin/wget -q  ftp://192.168.0.101:/myInit_script -P /mnt/sysimage/root/ 
chmod -R 755 /mnt/sysimage/root/*  
cp /mnt/sysimage/root/myInit_script -P  /etc/init.d/
/mnt/sysimage/sbin/chkconfig --level 3 myInit_script on
The above system wont work and when i view the ks-post.log i can see the scrambled message below:

Quote:
rmation on service cmxinit: No such file or directory
1) Why cant it find the file since it is there? When i reboot and login on the system i can see that the file was copied.

2) I would be very happy if someone could explain me the chroot // nochroot thing. As far as i understood , the chroot environment is the file-system anaconda creates in order to perform the installation. And the nochrooted file-system is the one that it is just installed, our actual OS. Is that correct? I cant find much explanation articles on the net for the specific topic.


thanks

Last edited by tripialos; 08-16-2013 at 09:04 AM.
 
Old 08-16-2013, 11:42 AM   #2
blueh2o
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Registered: Jul 2011
Distribution: CentOS, Ubuntu, Fedora, Solaris, RHEL, Debian
Posts: 89

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I do my %post without "--nochroot" and all operations are performed on the just-installed system.
For example:
Code:
%post --log /root/post-install.log
...
wget -q -O /root/VMwareTools.tar.gz http://ksserv/vmtools/latest
...
You should be able to wget your script directly into /etc/init.d.. Also, after you put your script in /etc/init.d, I believe you'll want to "chkconfig --add" it before you can set runlevels.

You'll also find that very often if something goes wrong in your kickstart, the log output will be garbled like that. I think that is a special feature in Anaconda.
 
Old 08-20-2013, 08:34 AM   #3
tripialos
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Registered: Apr 2012
Posts: 162

Original Poster
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Quote:
Originally Posted by blueh2o View Post
I do my %post without "--nochroot" and all operations are performed on the just-installed system.
For example:
Code:
%post --log /root/post-install.log
...
wget -q -O /root/VMwareTools.tar.gz http://ksserv/vmtools/latest
...
You should be able to wget your script directly into /etc/init.d.. Also, after you put your script in /etc/init.d, I believe you'll want to "chkconfig --add" it before you can set runlevels.

You'll also find that very often if something goes wrong in your kickstart, the log output will be garbled like that. I think that is a special feature in Anaconda.
You are right. I got mixed up with the --nochroot thing and thought that with --nochroot i was outside installers directory which is the oposite.

CentOS Forum made clear to me the distiction of --nochroon and in combination with your post i managed to get it work. What i did is, as you suggested, run the commands as per below:

Code:
%post --log=/root/ks-post.log
/usr/bin/wget -r -nH  ftp://192.168.0.101:/myscript/* -P /root/l
chmod -R 755 /root/*
cp /root/myscript /etc/init.d/
chmod 755 /etc/init.d/myscript
/sbin/chkconfig myscript on
And it worked perfectly.

Thanks
 
  


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