diff -rupN dhcpcd-6.1.0-old/if-linux.c dhcpcd-6.1.0/if-linux.c
--- dhcpcd-6.1.0-old/if-linux.c	2013-09-20 12:27:24.000000000 +0200
+++ dhcpcd-6.1.0/if-linux.c	2013-12-13 09:50:24.183694744 +0100
@@ -86,7 +86,7 @@ if_init(struct interface *iface)
 
 	fp = fopen(path, "w");
 	if (fp == NULL)
-		return errno == ENOENT ? 0 : -1;
+		return (errno == ENOENT || errno == EROFS) ? 0 : -1;
 	n = fprintf(fp, "1");
 	fclose(fp);
 	return n == -1 ? -1 : 0;