--- mkinitrd-4.2.1.8/nash/nash.c.orig
+++ mkinitrd-4.2.1.8/nash/nash.c
@@ -836,11 +836,18 @@
     }
 
     if (cmdline != NULL) {
+        char quote = '\0';
         char * chptr, * start;
 
         start = chptr = cmdline;
         for (; (i < MAX_INIT_ARGS) && (*start != '\0'); i++) {
-            while (*chptr && !isspace(*chptr)) chptr++;
+            while (*chptr && (*chptr != quote)) {
+                if (isspace(*chptr) && quote == '\0') break;
+                if (*chptr == '"') quote = '"';
+                if (*chptr == '\'') quote = '\'';
+                chptr++;
+            }
+            if (quote == '"' || quote == '\'') chptr++;
             if (*chptr != '\0') *(chptr++) = '\0';
             initargs[i] = strdup(start);
             start = chptr;