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RE: Re: RHEL 7 problems.



Do I have to build the ISO on a RHEL 7 system?

 

From: kickstart-list-bounces redhat com [mailto:kickstart-list-bounces redhat com] On Behalf Of Mr. Pushpendra Chavan
Sent: Wednesday, June 08, 2016 8:41 AM
To: Discussion list about Kickstart
Subject: [EXTERNAL] Re: RHEL 7 problems.

 

Hello,

Here are the steps which I follow to modify my ISO for adding Kickstart, you might want to give it a try. One can run these steps on RHEL7/CentOS7 machine.

1. Mount the DVD iso at some location:

    # mount -o loop /path/to/rhel-server-7.2-x86_64-dvd.iso /mnt

2. Then create a directory and copy all the contents of the ISO into the same.

    # mkdir /tmp/rhel7
    # shopt -s dotglob
    # cp -avRf /mnt/* /tmp/rhel7


3. Verify that all hidden files like .treeinfo are there in /tmp/rhel7

    # cd /tmp/rhel7
    #  ls -a


4. Get the kickstart file and rename it to ks.cfg

    # cd /tmp/rhel7
    # wget ftp://192.168.122.254/rhel7/ks.cfg
<========== or simply copy your kickstart file

5. Confirm the LABEL of the DVD iso.

    # blkid /path/to/rhel-server-7.2-x86_64-dvd.iso

6. Add the stanza in /tmp/rhel7/isolinux/isolinux.cfg file as follows.

#######################################
label kickstart
  menu label ^Kickstart Installation of RHEL7.2
  kernel vmlinuz
  append initrd=initrd.img inst.stage2=hd:LABEL=RHEL-7.2\x20Server.x86_64 inst.ks=cdrom:/ks.cfg
#######################################


Make sure that the stanza has inst.stage2 and the correct label.

7. Now, save the file and create the ISO as follows.

    # mkisofs -J -T -o /tmp/rhel7test.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -m TRANS.TBL -graft-points -V "RHEL-7.2 Server.x86_64" /tmp/rhel7/

The ISO /tmp/rhel7test.iso will be bootable. This will be for Legacy Boot only, for UEFI boot, the procedure will be a little bit different. Just few more steps added/replaced.

Regards,

Pushpendra Chavan.

 


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