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3.4. Setting Up Multipathing in the initramfs File System

You can set up multipathing in the initramfs file system. After configuring multipath, you can rebuild the initramfs file system with the multipath configuration files by executing the dracut command with the following options:
# dracut --force --add multipath --include /etc/multipath /etc/multipath
If you run multipath from the initramfs file system and you make any changes to the multipath configuration files, you must rebuild the initramfs file system for the changes to take effect.