diff --git a/files/initrd/opt/rr/boot.sh b/files/initrd/opt/rr/boot.sh
index 8eba31ab..a2a874bc 100755
--- a/files/initrd/opt/rr/boot.sh
+++ b/files/initrd/opt/rr/boot.sh
@@ -174,6 +174,8 @@ if [ "${DT}" = "true" ] && ! echo "epyc7002 purley broadwellnkv2" | grep -wq "${
     [ ! "${CMDLINE['modprobe.blacklist']}" = "" ] && CMDLINE['modprobe.blacklist']+=","
     CMDLINE['modprobe.blacklist']+="mpt3sas"
   fi
+else
+  CMDLINE['scsi_mod.scan']="sync"
 fi
 
 # CMDLINE['kvm.ignore_msrs']="1"