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How to enable AHCI support after install

This document (3744228) is provided subject to the disclaimer at the end of this document.


Novell SUSE Linux Enterprise Desktop 10
Novell SUSE Linux Enterprise Server 10
Novell openSUSE


Linux was installed onto SATA hard drives that were in ATA mode. When AHCI mode is enabled, Linux will not boot.


The Linux kernel is modular in nature. The RAM disk/kernel image used to boot up Linux holds the initial modules that are used to get the system up; after the initial boot other modules are loaded as needed. In this case, the AHCI kernel modules were not included in the RAM disk based on the initial install.

general warnings
In case something goes wrong, please have the rescue CD (CD 1 or the DVD) for the appropriate service pack that you are using.

  1. Open /etc/sysconfig/kernel for editing
  2. Locate the line below starting with:
  3. Add the ahci module name within the quotes.Be careful where the module goes within the quotes. Place the AHCI driver before the ATA drvier, since you want it to load first.
    INITRD_MODULES="processor thermal ahci ata_piix fan jbd ext3 edd"
  4. Save and close the file
  5. Remake the kernel image.
  6. Reboot
Novell Support TID 3111917: How to add kernel modules to the initrd to boot
Novell Support TID 386492: Troubleshooting common boot problems


This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:3744228
  • Creation Date:07-JAN-08
  • Modified Date:27-APR-12
    • SUSESUSE Linux Enterprise Desktop
      SUSE Linux Enterprise Server

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