[Debian-live-changes] r2145 - docs/talks/debconf7

[mammadori-guest at alioth.debian.org]

Author: mammadori-guest
Date: 2007-06-17 15:04:26 +0000 (Sun, 17 Jun 2007)
New Revision: 2145

Modified:
   docs/talks/debconf7/work.tex
Log:


Modified: docs/talks/debconf7/work.tex
===================================================================
--- docs/talks/debconf7/work.tex	2007-06-17 14:25:38 UTC (rev 2144)
+++ docs/talks/debconf7/work.tex	2007-06-17 15:04:26 UTC (rev 2145)
@@ -1,21 +1,35 @@
 \section{How does it work}
 
-\subsection{System Booting}
+\subsection{Systems boot process}
 
-\begin{frame}{A System Boot}
-\begin{itemize}
+\begin{frame}{A typical system boot process}
+\begin{description}
 	\item Most of the systems do that:
 	\begin{itemize}
 		\item They are powered up
 		\item They boots from some media \\
-			{\footnotesize like local HD, Optical Disk, USB, Network}
+			\tiny{(local HDs, Optical Disks, USB sticks, Network)}
 		\item The bootloader loads Linux
+		\item Linux executes \texttt{/sbin/init} from the rootfs\footnote{not the \emph{real} one anymore}
 	\end{itemize}
-\end{itemize}
+\end{description}
 \end{frame}
 
+\subsection{Early userspace}
 
-\begin{frame}{Boot time}
+\begin{frame}{A regular non-live system boot}
+\begin{itemize}
+
+	\item Linux loads an initramfs (e.g. \texttt{/boot/initrd.img-2.6.21-1-686})
+	\begin{itemize}
+		\item cpio archive 
+		\item small rootfs
+		\item gzip compressed
+	\end{itemize}	
+	\item The initramfs search the real rootfs
+	\item it mounts it
+	\item it finally executes\footnote{calls \texttt{run-init}} on real rootfs \texttt{/sbin/init}
+\end{itemize}
 \end{frame}
 
 \begin{frame}{Early userspace}