diff --git a/usr.bin/xinstall/xinstall.c b/usr.bin/xinstall/xinstall.c
--- a/usr.bin/xinstall/xinstall.c
+++ b/usr.bin/xinstall/xinstall.c
@@ -1298,7 +1298,8 @@
 {
 	static char *buf = NULL;
 	static size_t bufsize;
-	int nr, nw;
+	ssize_t bytes;
+	int nr, nw, ret;
 	int serrno;
 	char *p;
 	int done_copy;
@@ -1310,6 +1311,39 @@
 	if (lseek(to_fd, (off_t)0, SEEK_SET) == (off_t)-1)
 		err(EX_OSERR, "lseek: %s", to_name);
 
+	/* Try copy_file_range() first */
+	ret = 1;
+	while (ret > 0)
+		ret = copy_file_range(from_fd, NULL, to_fd, NULL, SSIZE_MAX, 0);
+	if (ret == 0) {
+		if (digesttype == DIGEST_NONE)
+			return (NULL);
+		/* We need to read the source file and calculage a digest */
+		digest_init(&ctx);
+		if (lseek(from_fd, (off_t)0, SEEK_SET) == (off_t)-1)
+			err(EX_OSERR, "lseek: %s", from_name);
+		if (buf == NULL) {
+			if (sysconf(_SC_PHYS_PAGES) >
+			    PHYSPAGES_THRESHOLD)
+				bufsize = MIN(BUFSIZE_MAX, MAXPHYS * 8);
+			else
+				bufsize = BUFSIZE_SMALL;
+			buf = malloc(bufsize);
+			if (buf == NULL)
+				err(1, "Not enough memory");
+		}
+		while(1) {
+			bytes = read(from_fd, buf, bufsize);
+			if (bytes == 0)
+				break;
+			else if (bytes == -1)
+				err(EX_OSERR, "read: %s", from_name);
+			digest_update(&ctx, p, bytes);
+		}
+		return (digest_end(&ctx, NULL));
+	}
+
+	/* Fall back if copy_file_range() fails */
 	digest_init(&ctx);
 
 	done_copy = 0;