diff --git a/pkgs/racket-doc/scribblings/inside/cs-embedding.scrbl b/pkgs/racket-doc/scribblings/inside/cs-embedding.scrbl
index 0ff8f82b3b..8a9f54c032 100644
--- a/pkgs/racket-doc/scribblings/inside/cs-embedding.scrbl
+++ b/pkgs/racket-doc/scribblings/inside/cs-embedding.scrbl
@@ -72,11 +72,14 @@ To embed Racket CS in a program, follow these steps:
 
   The @filepath{petite.boot}, @filepath{scheme.boot}, and
   @filepath{racket.boot} files are distributed with the Racket
-  software in the installation's @filepath{lib} directory. These files
-  can be combined into a single file---or even embedded into the
-  executable---as long as the @cpp{boot1_offset}, @cpp{boot2_offset},
-  and @cpp{boot3_offset} fields of @cpp{racket_boot_arguments_t} are
-  set to identify the starting offset of each boot image in the file.
+  software in the installation's @filepath{lib} directory for Windows,
+  and they are distributed within the @filepath{Racket} framework on
+  Mac OS X; they must be @seclink["src-build"]{built} from source on Unix.
+  These files can be combined into a single file---or even
+  embedded into the executable---as long as the @cpp{boot1_offset},
+  @cpp{boot2_offset}, and @cpp{boot3_offset} fields of
+  @cpp{racket_boot_arguments_t} are set to identify the starting
+  offset of each boot image in the file.
 
   See @secref["segment-ideas"] for advice on embedding files like
   @filepath{petite.boot} in an executable.}
diff --git a/racket/src/worksp/csbuild.rkt b/racket/src/worksp/csbuild.rkt
index f3de3fad38..a9c076c885 100644
--- a/racket/src/worksp/csbuild.rkt
+++ b/racket/src/worksp/csbuild.rkt
@@ -13,6 +13,7 @@
 (define scheme-dir (build-path 'up "ChezScheme"))
 (define pull? #f)
 (define static-libs? #t)
+(define install-boot? #t) ; currently always enabled
 (define machine (if (= 32 (system-type 'word))
 		    "ti3nt"
 		    "ta6nt"))
@@ -34,7 +35,7 @@
  [("--extra-repos-base") url "Clone repos from <url>ChezScheme/.git, etc."
                          (unless (equal? url "")
                            (set! extra-repos-base url))]
- [("--disable-libs") "Disable installaton of non-embedded boot files"
+ [("--disable-libs") "Disable installaton of static libraries (currently ignored)"
                      (set! static-libs? #f)]
  #:args
  clone-arg
@@ -295,7 +296,7 @@
           machine
           "machine")
 
-(when static-libs?
+(when install-boot?
   (bootstrap-racket! "../cs/c/add-terminator.rkt"
                      "../build/petite-v.boot"
                      "../../lib/petite.boot")