basics/boot process: add english version

Signed-off-by: John Ogness <john.ogness@linutronix.de>

2 files changed, 86 insertions, 2 deletions

diff --git a/linux-basics/boot-process/Makefile b/linux-basics/boot-process/Makefile
index 3e6e7f6..1387084 100644
--- a/linux-basics/boot-process/Makefile
+++ b/linux-basics/boot-process/Makefile
@@ -1,2 +1,4 @@
-obj-$(CONFIG_LINUX_BOOT_PROCESS) +=  hints_boot-process_de.pdf  pres_boot-process_de.pdf
-obj-handout-$(CONFIG_LINUX_BOOT_PROCESS) +=handout_boot-process_de.pdf
+obj-$(CONFIG_LINUX_BOOT_PROCESS) += hints_boot-process_de.pdf
+obj-$(CONFIG_LINUX_BOOT_PROCESS) += pres_boot-process_de.pdf
+obj-$(CONFIG_LINUX_BOOT_PROCESS) += pres_boot-process_en.pdf
+obj-handout-$(CONFIG_LINUX_BOOT_PROCESS) += handout_boot-process_de.pdf
diff --git a/linux-basics/boot-process/pres_boot-process_en.tex b/linux-basics/boot-process/pres_boot-process_en.tex
new file mode 100644
index 0000000..10c13e3
--- /dev/null
+++ b/linux-basics/boot-process/pres_boot-process_en.tex
@@ -0,0 +1,82 @@
+\input{configpres}
+
+\title{The Linux Boot Procedure}
+\maketitle
+
+\subsection{Boot Process}
+
+\begin{frame}
+\frametitle{Responsibilities of the Bootloader}
+Low-Level Initialization:
+\pause
+\begin{itemize}
+\item clocks (CPU, PLLs, peripherals...)
+\item memory (DRAM-controller, NAND-controller...)
+\item serial interface
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Common Bootloaders}
+\begin{itemize}
+\item U-Boot
+\item Redboot
+\item Barebox
+\item minimal concept with IPL and boot-kernel
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Boot Procedure}
+\begin{itemize}
+\item bootloader initializes hardware
+\pause
+\item bootloader loads the kernel (device tree, initrd)
+\pause
+\item bootloader jumps to kernel instructions...
+\pause
+\item ...providing kernel parameters
+\pause
+\item kernel initializes internal structures and drivers
+\pause
+\item kernel mounts a root filesystem
+\pause
+\item kernel starts '/sbin/init'
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Common Problems: 1. Bootloader}
+\pause
+\begin{itemize}
+\item not correctly written to flash
+\item incorrect DRAM or NAND timings
+\item incorrect load address of the kernel
+\item not enough space available for the kernel
+\item incorrect IP address (for TFTP booting)
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Common Problems: 2. Kernel}
+\pause
+\begin{itemize}
+\item bootloader incorrectly initialized the hardware
+\item bootloader provided incorrect parameters
+\item incorrect device-tree information
+\item root filesystem drivers not in kernel
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Common Problems: 3. Userspace}
+\pause
+\begin{itemize}
+\item missing device nodes in the root filesystem
+\item missing drivers (static or kernel modules)
+\item missing necessary programs, configuration files, or links in the root filesystem
+\item start scripts not capable of handling all situations
+\end{itemize}
+\end{frame}
+
+\input{tailpres}