Comment 1 for bug 1538775

Just to be clear, it isn't the error message that is a problem when attempting to boot, its that the system will not boot with multipath support because the multipath discovery in the initrd is performed before the SCSI devices are available. Removing the current code referring to the removed module won't actually fix the issue as the discovery will still take place before the qla2xxx driver has had a chance to discover the LUN's, thus the root fs will be mounted on /dev/sda instead of /dev/mapper/mpath0, and cannot be changed later (as the LUN is currently active).

This is why I had to add in a sleep statement so that the multipath scan takes place after the devices have been discovered. Not a clean solution at all, but I am unsure as to what replaced the scsi_wait_scan given the async changes.