userinstall

Annotated uml-linux-build

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2015-01-15 Paul Boddie file changeset files shortlog Added notes on filesystem resizing and uml-net invocation.
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#!/bin/sh
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# Copyright (C) 2011, 2012, 2013 Paul Boddie <paul@boddie.org.uk>
 
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#
 
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# This program is free software; you can redistribute it and/or modify it under
 
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# the terms of the GNU General Public License as published by the Free Software
 
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# Foundation; either version 3 of the License, or (at your option) any later
 
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# version.
 
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#
 
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# This program is distributed in the hope that it will be useful, but WITHOUT
 
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 
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# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 
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# details.
 
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#
 
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# You should have received a copy of the GNU General Public License along with
 
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# this program.  If not, see <http://www.gnu.org/licenses/>.
 
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# Configuration:
 
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if [ -e userinstall-defaults-uml ]; then
 
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        . "$PWD/userinstall-defaults-uml"
 
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elif [ -e /etc/default/userinstall-uml ]; then
 
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        . /etc/default/userinstall-uml
 
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else
 
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        echo "No defaults found for userinstall (UML)." 1>&2
 
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        exit 1
 
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fi
 
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if [ ! -e "$PACKAGEROOT" ]; then
 
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	echo "A package root must first be made using user-setup." 1>&2
 
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	exit 1
 
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fi
 
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if [ "$1" = '--root' ]; then
 
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        AS_USER="sudo"
 
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fi
 
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THISDIR=`dirname "$0"`
 
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if [ ! -e linux ]; then
 
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	if [ ! -e "$LINUXDIRNAME" ]; then
 
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		if [ ! -e "$LINUXARCHIVE" ]; then
 
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			echo "Getting the Linux kernel archive..." 1>&2
 
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			wget -O "$LINUXARCHIVE" "$LINUXADDRESS"
 
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		fi
 
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		echo "Unpacking the archive..." 1>&2
 
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		tar jxf "$LINUXARCHIVE"
 
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	fi
 
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	if [ ! -e "$LINUXDIRNAME/linux" ]; then
 
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		# Copy our configuration into the unpacked directory.
 
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		# Normally we would do this:
 
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		# make defconfig ARCH=um
 
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		# make menuconfig ARCH=um
 
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		# In "File systems", "CD-ROM/DVD Filesystems", press Y for "ISO 9660...".
 
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		# The supplied configuration file should include this information.
 
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		echo "Adding configuration..." 1>&2
 
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		if [ -e "$LINUXDIRNAME/.config" ]; then
 
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			if [ ! -e "$LINUXDIRNAME/.config.original" ]; then
 
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				echo "$LINUXDIRNAME/.config -> $LINUXDIRNAME/.config.original" 1>&2
 
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				mv "$LINUXDIRNAME/.config" "$LINUXDIRNAME/.config.original"
 
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			fi
 
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		fi
 
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		echo "uml-linux-build.config -> $LINUXDIRNAME/.config"
 
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		cp "$THISDIR/uml-linux-build.config" "$LINUXDIRNAME/.config"
 
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	fi
 
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	# Enter the unpacked directory and build.
 
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	cd "$LINUXDIRNAME"
 
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	#echo "Patching hostaudio for SDL..."
 
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	#patch -p0 < ../patches/hostaudio_kern.c.diff
 
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	echo "Building..." 1>&2
 
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	make ARCH=um
 
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        echo "Making the modules..." 1>&2
 
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        make modules ARCH=um
 
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	cd ..
 
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fi
 
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echo "Installing the modules..." 1>&2
 
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"$THISDIR/uml-access-image" $AS_USER make -C "$LINUXDIRNAME" modules_install INSTALL_MOD_PATH="$IMAGEDIR" ARCH=um
 
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# Now get the executable and remove the build directory.
 
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if [ ! -e linux ]; then
 
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	mv "$LINUXDIRNAME/linux" .
 
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fi
 
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if [ -e linux ]; then
 
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	echo "To remove the Linux kernel sources, do this:" 1>&2
 
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	echo "rm -rf '$LINUXDIRNAME'" 1>&2
 
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fi