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Additional kernel modules not added to the initrd when specified in "/etc/dracut.conf"

This document (7016056) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 12


When adding additional kernel modules to be included in the initrd using the "add_drivers+=" option in "/etc/dracut.conf" the modules are not present after having executed "mkinitrd" to re-create the initrd.


For now the following workaround can be used to add modules to the initrd;

dracut --force --add-drivers <module_name> /boot/<initrd-kernel_version>

For example if the "qla2xxx" modules is to be added to the initrd and the kernel version is "3.12.28-4-default" the command will be:

dracut --force --add-drivers qla2xxx /boot/initrd-3.12.28-4-default

For additional information see "man dracut".


Reported to engineering, will be fixed with a future maintenance release.

Additional Information

After specifying additional kernel modules in the "/etc/dracut.conf" file and then executing "mkinitrd" the following messages can be seen;

*** Including module: kernel-modules ***
/usr/lib/dracut/ line 1585: host_modules: bad array subscript
/usr/lib/dracut/ line 1585: host_modules: bad array subscript
/usr/lib/dracut/ line 1585: host_modules: bad array subscript
/usr/lib/dracut/ line 1585: host_modules: bad array subscript

To view the contents of the initrd the "lsinitrd" command can be used, to specifically see only which kernel modules are currently included in the initrd the following example command can be used;

lsinitrd | grep -i 'ko'


This Support Knowledgebase provides a valuable tool for 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:7016056
  • Creation Date: 13-Jan-2015
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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