Software⏱️ 3 min read📅 2026-06-19

How to Fix: DVD not found error while kickstart installation on RHEL 6.5/6.4

RHEL 6.5/6.4 DVD not found error during kickstart installation

Quick Answer: Check the kernel and initrd parameters in isolinux.cfg to ensure ks=cdrom:/ks.cfg is correctly specified.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. 🛠️ Step-by-Step Verified Fixes
  3. ✨ Wrapping Up

The DVD not found error during kickstart installation on RHEL 6.5/6.4 can be frustrating for administrators and users alike. This issue occurs when the kickstart configuration file (ks.cfg) is placed in a location that is not accessible by the installer.

This problem happens because the ks.cfg file is located outside of the ISO image's root directory, making it difficult for the installer to find and access it during the installation process.

🛑 Root Causes of the Error

  • The primary reason for this error is that the ks.cfg file is placed in a location outside of the ISO image's root directory. This can be due to incorrect placement or formatting of the ks.cfg file within the ISO image.
  • Another possible cause is that the ISO image itself is not properly created, resulting in an incomplete or corrupted kickstart configuration.

🛠️ Step-by-Step Verified Fixes

Reorganizing the ks.cfg file and adjusting the isolinux.cfg

  1. Step 1: Move the ks.cfg file to a location within the root directory of the ISO image, such as /ks/ks.cfg. This will ensure that the installer can access the kickstart configuration file during the installation process.
  2. Step 2: Update the isolinux.cfg file to reflect the new location of the ks.cfg file. The updated isolinux.cfg file should contain the following line: append initrd=initrd.img ks=cdrom:/ks/ks.cfg
  3. Step 3: Verify that the ISO image is properly created and that the ks.cfg file is accessible within the root directory.

Using a different method to create the ISO image

  1. Step 1: Use the following command to create the ISO image with the correct placement of the ks.cfg file: mkisofs -o $ISO_NAME -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -J -l -r -T -v -d /ks/ks.cfg
  2. Step 2: Verify that the ISO image is properly created and that the ks.cfg file is accessible within the root directory.

✨ Wrapping Up

To resolve the DVD not found error during kickstart installation on RHEL 6.5/6.4, administrators can try reorganizing the ks.cfg file and adjusting the isolinux.cfg, or use a different method to create the ISO image with the correct placement of the ks.cfg file.

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