Labs: use "exportfs -r" instead of restarting the NFS server

Restarting the NFS server is a rather ugly thing to do in an environment with multiple users (imagine a central NFS server). We just need to ask the server to update the directories it exports, not to stop and restart. Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
bootlin · Dec 2, 2021 · 9a4fa7e · 9a4fa7e
1 parent c52bdbd
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diff --git a/labs/kernel-compiling-and-nfs-booting/kernel-compiling-and-nfs-booting.tex b/labs/kernel-compiling-and-nfs-booting/kernel-compiling-and-nfs-booting.tex
@@ -135,7 +135,7 @@ \section{Setting up the NFS server}
 Then, restart the NFS server:
 
 \begin{verbatim}
-sudo /etc/init.d/nfs-kernel-server restart
+sudo exportfs -r
 \end{verbatim}
 
 If there is any error message, this usually means that there was a

diff --git a/labs/sysdev-application-debugging/sysdev-application-debugging.tex b/labs/sysdev-application-debugging/sysdev-application-debugging.tex
@@ -49,8 +49,8 @@ \section{Debugging setup}
 and extract the \code{buildroot-2021.08.<n>/output/images/rootfs.tar}
 archive in the \code{nfsroot} directory.
 
-Add this directory to the \code{/etc/exports} file and restart
-\code{nfs-kernel-server}.
+Add this directory to the \code{/etc/exports} file and run
+\code{sudo exportfs -r}.
 
 Boot your ARM board over NFS on this new filesystem, using the same
 kernel as before.

diff --git a/labs/sysdev-tinysystem/sysdev-tinysystem.tex b/labs/sysdev-tinysystem/sysdev-tinysystem.tex
@@ -68,9 +68,9 @@ \section{Setting up the NFS server}
 options, otherwise default options will be used for this IP address,
 causing your root filesystem to be read-only.
 
-Then, restart the NFS server:
+Then, make the NFS server the new configuration:
 
-\bashcmd{$ sudo service nfs-kernel-server restart}
+\bashcmd{$ sudo exportfs -r}
 
 \section{Booting the system}
 

diff --git a/labs/yocto-advanced-configuration-stm32/yocto-advanced-configuration-stm32.tex b/labs/yocto-advanced-configuration-stm32/yocto-advanced-configuration-stm32.tex
@@ -72,9 +72,9 @@ \section{Set up the NFS server on the workstation}
 \code{/nfs *(rw,sync,no_root_squash,subtree_check)} to the
 \code{/etc/exports} file.
 
-Finally restart the service:
+Finally, make the NFS server use the new configuration:
 \begin{verbatim}
-sudo service nfs-kernel-server restart
+sudo exportfs -r
 \end{verbatim}
 
 \section{Add a package to the rootfs image}

diff --git a/labs/yocto-advanced-configuration/yocto-advanced-configuration.tex b/labs/yocto-advanced-configuration/yocto-advanced-configuration.tex
@@ -63,9 +63,9 @@ \section{Set up the NFS server on the workstation}
 \code{/nfs *(rw,sync,no_root_squash,subtree_check)} to the
 \code{/etc/exports} file.
 
-Finally restart the service:
+Finally update the NFS server:
 \begin{verbatim}
-sudo service nfs-kernel-server restart
+sudo exportfs -r
 \end{verbatim}
 
 \section{Add a package to the rootfs image}

diff --git a/slides/sysdev-root-filesystem-principles/sysdev-root-filesystem-principles.tex b/slides/sysdev-root-filesystem-principles/sysdev-root-filesystem-principles.tex
@@ -177,8 +177,8 @@ \subsection{Principle and solutions}
     \item \code{rw,no_root_squash,no_subtree_check} are the NFS server
       options for this directory export.
     \end{itemize}
-  \item Start or restart your NFS server (example: Debian, Ubuntu)\\
-    \code{sudo /etc/init.d/nfs-kernel-server restart}
+  \item Ask your NFS server to reload this file:\\
+    \code{sudo exportfs -r}
   \end{itemize}
 \end{frame}