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Xilinx · May 21, 2024 · 4f77c3f · 4f77c3f
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diff --git a/docs/source/pynq_sd_card.rst b/docs/source/pynq_sd_card.rst
@@ -174,7 +174,7 @@ following the steps below. You don't have to rerun the `setup_host.sh`.
      source distribution.  Starting in PYNQ v3.0, by default the SD card build
      flow expects a prebuilt root filesystem and a PYNQ source distribution to
      speedup and simplify user rebuilds of SD card images.  These binaries can be
-     found at `the PYNQ boards page <http://www.pynq.io/board.html/>`_ and
+     found at `the PYNQ boards page <https://www.pynq.io/boards.html/>`_ and
      copied into the sdbuild prebuilt folder
 
      .. code-block:: console
@@ -202,9 +202,10 @@ In order to simplify and speed-up the image building process, users should re-us
 prebuilt board-agnostic image appropriate to the architecture - arm for Zynq-7000 
 and aarch64 for Zynq UltraScale+, downloadable at the 
 `boards page <https://www.pynq.io/boards.html/>`_ of our website. This will allow 
-you to completely skip the board-agnostic stage. It is important to notice however
-that this will restrict the build process to only boards that share the same
-architecture. You can do so by passing the ``PREBUILT`` variable when invoking make:
+you to completely skip the board-agnostic stage.
+
+You can force a root filesystem build by setting the ``REBUILD_PYNQ_ROOTFS`` variable
+when invoking make:
 
 .. code-block:: console
     

diff --git a/sdbuild/README.md b/sdbuild/README.md
@@ -161,7 +161,7 @@ custom notebooks or Python packages if desired for your board.
 
 #### (1) Collect a prebuilt board-agnostic root filesystem tarball and a prebuilt PYNQ source distribution.
 
-Starting in PYNQ v3.0, by default the SD card build flow expects a prebuilt root filesystem and a PYNQ source distribution to speedup and simplify user rebuilds of SD card images. These binaries can be found at [the PYNQ boards page](http://www.pynq.io/board.html/) and copied into the sdbuild prebuilt folder
+Starting in PYNQ v3.0, by default the SD card build flow expects a prebuilt root filesystem and a PYNQ source distribution to speedup and simplify user rebuilds of SD card images. These binaries can be found at [the PYNQ boards page](https://www.pynq.io/boards.html/) and copied into the sdbuild prebuilt folder
 
 ```bash
 # For rebuilding all SD cards, both arm and aarch64 root filesystems