diff --git a/contrib/dracut/02zfsexpandknowledge/module-setup.sh.in b/contrib/dracut/02zfsexpandknowledge/module-setup.sh.in
index df8df3181fce..2fa25c57e9fc 100755
--- a/contrib/dracut/02zfsexpandknowledge/module-setup.sh.in
+++ b/contrib/dracut/02zfsexpandknowledge/module-setup.sh.in
@@ -50,6 +50,24 @@ find_zfs_block_devices() {
     done < /proc/self/mountinfo
 }
 
+find_add_zpool_mps() {
+    local dev
+    local mp
+    local fstype
+    local _
+    numfields="$(awk '{print NF; exit}' /proc/self/mountinfo)"
+    if [ "$numfields" = "10" ] ; then
+        fields="_ _ _ _ mp _ _ fstype dev _"
+    else
+        fields="_ _ _ _ mp _ _ _ fstype dev _"
+    fi
+    # shellcheck disable=SC2086
+    while read -r ${fields?} ; do
+       [ "$fstype" = "zfs" ] || continue
+       [ "$dev" = "$1" ] && echo "$mp"
+    done < /proc/self/mountinfo
+}
+
 array_contains () {
   local e
   for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done
@@ -75,6 +93,14 @@ check() {
 # shellcheck disable=SC2154
 if [ -n "$hostonly" ]; then
 
+    if [ -f @sysconfdir@/default/zfs ]; then
+        . @sysconfdir@/default/zfs
+        if [ -n "$ZFS_INITRD_ADDITIONAL_DATASETS" ]; then
+           for add_zpool in $ZFS_INITRD_ADDITIONAL_DATASETS; do
+               add_mps+=$(find_add_zpool_mps "$add_zpool")
+            done
+        fi
+    fi
     for mp in \
         "/" \
         "/etc" \
@@ -87,7 +113,8 @@ if [ -n "$hostonly" ]; then
         "/usr/sbin" \
         "/usr/lib" \
         "/usr/lib64" \
-        "/boot";
+        "/boot" \
+       "${add_mps[@]}";
     do
         mp=$(readlink -f "$mp")
         mountpoint "$mp" >/dev/null 2>&1 || continue
diff --git a/contrib/dracut/90zfs/module-setup.sh.in b/contrib/dracut/90zfs/module-setup.sh.in
index 81d7d2abe496..e81861ae66b5 100755
--- a/contrib/dracut/90zfs/module-setup.sh.in
+++ b/contrib/dracut/90zfs/module-setup.sh.in
@@ -64,7 +64,8 @@ install() {
 	# -o ensures there is no error upon absence of these files
 	inst_multiple -o -H \
 		"@sysconfdir@/zfs/zpool.cache" \
-		"@sysconfdir@/zfs/vdev_id.conf"
+		"@sysconfdir@/zfs/vdev_id.conf" \
+		"@sysconfdir@/default/zfs"
 
 	# Synchronize initramfs and system hostid
 	if ! inst_simple -H @sysconfdir@/hostid; then
diff --git a/contrib/initramfs/scripts/zfs b/contrib/initramfs/scripts/zfs
index 1c8c496a7ff4..1ea5abe90bd1 100644
--- a/contrib/initramfs/scripts/zfs
+++ b/contrib/initramfs/scripts/zfs
@@ -897,6 +897,15 @@ mountroot()
 		ZFS_RPOOL="${pool}"
 	fi
 
+        # We need to import additional zpools which aren't under root zpool, before mount_fs()
+        for add_zpool in $ZFS_INITRD_ADDITIONAL_DATASETS; do
+                add_zpool_base="${add_zpool%%/*}"
+
+                if [ "$add_zpool_base" != "$ZFS_RPOOL" ]
+                then
+                        import_pool "${add_zpool_base}"
+                fi
+        done
 
 	# ----------------------------------------------------------------
 	# P R E P A R E   R O O T   F I L E S Y S T E M