How to add kernel modules to the initrd to be loaded on boot

This document (000019945) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server 12

 


Situation

A kernel module needs to be loaded by the kernel image.

Resolution

Following command will create a new configuration file for dracut, adding module qla2xxx to the initrd:
 
cat << EOF > /etc/dracut.conf.d/00-custom.conf
add_drivers+=" qla2xxx "
EOF

Note: please add space before and after the kernel module. And also, kernel module should be written without .ko extension. 

Running following command will regenerate the initrd:
 
mkinitrd

To verify the module was added:
 
lsinitrd |grep ko|grep qla2xxx
... lib/modules/<version>/kernel/drivers/scsi/qla2xxx/qla2xxx.ko

Additional Information

For more information please check the dracut.conf man pages. 
 
add_drivers+=" <kernel modules> "
           Specify a space-separated list of kernel modules to add to the initramfs. The kernel modules have to be specified without the ".ko" suffix.

 

Disclaimer

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:000019945
  • Creation Date: 09-Jun-2021
  • Modified Date:09-Jun-2021
    • SUSE Linux Enterprise Server

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