Linux From Scratch

http://fr.linuxfromscratch.org/view/lfs-systemd-stable/index.html

Fonctionnement général: à partir d'un système existant, on construit LFS sur une partition à côté du système existant. On pourra ensuite booter sur LFS situé sur la nouvelle partition.

Dans une machine virtuelle avec 80 Go de stockage et 2 Go de RAM, installer une Debian Stable, en partitionnant comme suit:

• 20 Go pour le système hôte, type ext4, monté sur / avec l'indicateur d'amorçage
• 55 Go pour LFS, type ext4, non monté
• le reste pour le swap

Exécuter le script fournit ici.

Correction à apporter:

• faire pointer /bin/sh vers bash au lieu de dash (Source):

  sudo dpkg-reconfigure dash

• installer les paquets build-essential bison gawk m4 texinfo

export LFS=/mnt/lfs

sudo mkdir -pv $LFS
sudo mount -v -t ext4 /dev/<xxx> $LFS

sudo mkdir -v $LFS/sources
sudo chmod -v a+wt $LFS/sources
wget http://fr.linuxfromscratch.org/view/lfs-systemd-stable/wget-list
sudo wget --input-file=wget-list --continue --directory-prefix=$LFS/sources

Passer root, c'est bien plus simple (ne pas oublier de définir $LFS !).

mkdir -v $LFS/tools
ln -sv $LFS/tools / # '/tools' -> '/mnt/lfs/tools'

groupadd lfs
useradd -s /bin/bash -g lfs -m -k /dev/null lfs
passwd lfs
chown -v lfs $LFS/tools
chown -v lfs $LFS/sources

Se connecter avec l'utilisateur lfs.

~/.bash_profile

exec env -i HOME=$HOME TERM=$TERM PS1='\u:\w\$ ' /bin/bash

~/.bashrc

set +h
umask 022
LFS=/mnt/lfs
LC_ALL=POSIX
LFS_TGT=$(uname -m)-lfs-linux-gnu
PATH=/tools/bin:/bin:/usr/bin
export LFS LC_ALL LFS_TGT PATH

source ~/.bash_profile

Si on redémarre la machine maintenant, il faut monter la partition dans $LFS et se connecter avec l'utilisateur lfs, tout est déjà défini.

cd $LFS/sources/
tar fxv binutils-2.34.tar.xz
cd binutils-2.34
mkdir build
cd build
../configure --prefix=/tools --with-sysroot=$LFS --with-lib-path=/tools/lib --target=$LFS_TGT --disable-nls --disable-werror
make 
mkdir -v /tools/lib && ln -sv lib /tools/lib64
make install

cd $LFS/sources/
tar xfv gcc-9.2.0.tar.xz
cd gcc-9.2.0
 
tar -xf ../mpfr-4.0.2.tar.xz
mv -v mpfr-4.0.2 mpfr
tar -xf ../gmp-6.2.0.tar.xz
mv -v gmp-6.2.0 gmp
tar -xf ../mpc-1.1.0.tar.gz
mv -v mpc-1.1.0 mpc
 
for file in gcc/config/{linux,i386/linux{,64}}.h
do
  cp -uv $file{,.orig}
  sed -e 's@/lib\(64\)\?\(32\)\?/ld@/tools&@g' \
      -e 's@/usr@/tools@g' $file.orig > $file
  echo '
#undef STANDARD_STARTFILE_PREFIX_1
#undef STANDARD_STARTFILE_PREFIX_2
#define STANDARD_STARTFILE_PREFIX_1 "/tools/lib/"
#define STANDARD_STARTFILE_PREFIX_2 ""' >> $file
  touch $file.orig
done
 
sed -e '/m64=/s/lib64/lib/' \
        -i.orig gcc/config/i386/t-linux64
 
mkdir build
cd build
 
../configure                                       \
    --target=$LFS_TGT                              \
    --prefix=/tools                                \
    --with-glibc-version=2.11                      \
    --with-sysroot=$LFS                            \
    --with-newlib                                  \
    --without-headers                              \
    --with-local-prefix=/tools                     \
    --with-native-system-header-dir=/tools/include \
    --disable-nls                                  \
    --disable-shared                               \
    --disable-multilib                             \
    --disable-decimal-float                        \
    --disable-threads                              \
    --disable-libatomic                            \
    --disable-libgomp                              \
    --disable-libquadmath                          \
    --disable-libssp                               \
    --disable-libvtv                               \
    --disable-libstdcxx                            \
    --enable-languages=c,c++
make
make install 

cd $LFS/sources/
tar xfv linux-5.5.3.tar.xz
cd linux-5.5.3
make mrproper
make headers
cp -rv usr/include/* /tools/include

cd $LFS/sources/
tar xfv glibc-2.31.tar.xz
cd glib-2.31
 
mkdir build
cd build
 
../configure                             \
      --prefix=/tools                    \
      --host=$LFS_TGT                    \
      --build=$(../scripts/config.guess) \
      --enable-kernel=3.2                \
      --with-headers=/tools/include
make
make install
 
 
 
echo 'int main(){}' > dummy.c
$LFS_TGT-gcc dummy.c
readelf -l a.out | grep ': /tools' # doit retourner [Requesting program interpreter: /tools/lib64/ld-linux-x86-64.so.2]
rm dummy.c a.out

cd $LFS/sources/gcc-9.2.0/build
 
../libstdc++-v3/configure           \
    --host=$LFS_TGT                 \
    --prefix=/tools                 \
    --disable-multilib              \
    --disable-nls                   \
    --disable-libstdcxx-threads     \
    --disable-libstdcxx-pch         \
    --with-gxx-include-dir=/tools/$LFS_TGT/include/c++/9.2.0
make
make install

cd $LFS/srouces/binutils-2.34/build
rm -rf *
CC=$LFS_TGT-gcc                \
AR=$LFS_TGT-ar                 \
RANLIB=$LFS_TGT-ranlib         \
../configure                   \
    --prefix=/tools            \
    --disable-nls              \
    --disable-werror           \
    --with-lib-path=/tools/lib \
    --with-sysroot
make
make install
 
make -C ld clean
make -C ld LIB_PATH=/usr/lib:/lib
cp -v ld/ld-new /tools/bin

cd $LFS/sources/gcc-9.2.0
 
cat gcc/limitx.h gcc/glimits.h gcc/limity.h >  `dirname \
  $($LFS_TGT-gcc -print-libgcc-file-name)`/include-fixed/limits.h
 
for file in gcc/config/{linux,i386/linux{,64}}.h
do
  cp -uv $file{,.orig}
  sed -e 's@/lib\(64\)\?\(32\)\?/ld@/tools&@g' \
      -e 's@/usr@/tools@g' $file.orig > $file
  echo '
#undef STANDARD_STARTFILE_PREFIX_1
#undef STANDARD_STARTFILE_PREFIX_2
#define STANDARD_STARTFILE_PREFIX_1 "/tools/lib/"
#define STANDARD_STARTFILE_PREFIX_2 ""' >> $file
  touch $file.orig
done
 
sed -e '/m64=/s/lib64/lib/' \
        -i.orig gcc/config/i386/t-linux64
 
sed -e '1161 s|^|//|' \
    -i libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
 
cd build
rm -rf *
CC=$LFS_TGT-gcc                                    \
CXX=$LFS_TGT-g++                                   \
AR=$LFS_TGT-ar                                     \
RANLIB=$LFS_TGT-ranlib                             \
../configure                                       \
    --prefix=/tools                                \
    --with-local-prefix=/tools                     \
    --with-native-system-header-dir=/tools/include \
    --enable-languages=c,c++                       \
    --disable-libstdcxx-pch                        \
    --disable-multilib                             \
    --disable-bootstrap                            \
    --disable-libgomp
make
make install
ln -sv gcc /tools/bin/cc
 
echo 'int main(){}' > dummy.c
cc dummy.c
readelf -l a.out | grep ': /tools' # doit retourner [Requesting program interpreter: /tools/lib64/ld-linux-x86-64.so.2]
rm -v dummy.c a.out

cd $LFS/sources/
tar xfv tcl8.6.10-src.tar.gz
cd tcl8.6.10/unix
./configure --prefix=/tools
make
TZ=UTC make test
make install
chmod -v u+w /tools/lib/libtcl8.6.so
make install-private-headers
ln -sv tclsh8.6 /tools/bin/tclsh

cd $LFS/sources/
tar xfv expect5.45.4.tar.gz
cd expect5.45.4
cp -v configure{,.orig}
sed 's:/usr/local/bin:/bin:' configure.orig > configure
./configure --prefix=/tools       \
            --with-tcl=/tools/lib \
            --with-tclinclude=/tools/include
make
make test
make SCRIPTS="" install

cd $LFS/sources/
tar xfv dejagnu-1.6.2.tar.gz
cd dejagnu-1.6.2
./configure --prefix=/tools
make install
make check

cd $LFS/sources/
tar xfv m4-1.4.18.tar.xz
cd m4-1.4.18
sed -i 's/IO_ftrylockfile/IO_EOF_SEEN/' lib/*.c
echo "#define _IO_IN_BACKUP 0x100" >> lib/stdio-impl.h
./configure --prefix=/tools
make
make check
make install

cd $LFS/sources/
tar xfv ncurses-6.2.tar.gz
cd ncurses-6.2
sed -i s/mawk// configure
./configure --prefix=/tools \
            --with-shared   \
            --without-debug \
            --without-ada   \
            --enable-widec  \
            --enable-overwrite
make
make install
ln -s libncursesw.so /tools/lib/libncurses.so
 
 
==== Bash-5.0 ====
 
<code bash>
cd $LFS/sources/
tar xfv bash-5.0.tar.gz
cd bash-5.0
./configure --prefix=/tools --without-bash-malloc
make
make tests
make install
ln -sv bash /tools/bin/sh

cd $LFS/sources/
tar xfv bison-3.5.2.tar.xz
cd bison-3.5.2
./configure --prefix=/tools
make
make check
make install

cd $LFS/sources/
tar xfv bzip2-1.0.8.tar.gz
cd bzip2-1.0.8
make -f Makefile-libbz2_so
make clean
make
make PREFIX=/tools install
cp -v bzip2-shared /tools/bin/bzip2
cp -av libbz2.so* /tools/lib
ln -sv libbz2.so.1.0 /tools/lib/libbz2.so

cd $LFS/sources/
tar xfv coreutils-8.31.tar.xz
cd coreutils-8.31
./configure --prefix=/tools --enable-install-program=hostname
make
make install

cd $LFS/sources/
tar xfv diffutils-3.7.tar.xz
cd diffutils-3.7
./configure --prefix=/tools
make
make install

cd $LFS/sources/
tar xfv file-5.38.tar.gz
cd file-5.38
make
make install

cd $LFS/sources/
tar xfv findutils-4.7.0.tar.xz
cd findutils-4.7.0
./configure --prefix=/tools
make
make install

cd $LFS/sources/
tar xfv gawk-5.0.1.tar.xz
cd gawk-5.0.1
./configure --prefix=/tools
make
make install

cd $LFS/sources/
tar xfv gettext-0.20.1.tar.xz
cd gettext-0.20.1
make
cp -v gettext-tools/src/{msgfmt,msgmerge,xgettext} /tools/bin

cd $LFS/sources/
tar xfv grep-3.4.tar.xz
cd grep-3.4
./configure --prefix=/tools
make
make install

cd $LFS/sources/
tar xfv gzip-1.10.tar.xz
cd gzip-1.10
./configure --prefix=/tools
make
make install

cd $LFS/sources/
tar xfv make-4.3.tar.gz
cd make-4.3
./configure --prefix=/tools --without-guile
make
make install

cd $LFS/sources/
tar xfv patch-2.7.6.tar.xz
cd patch-2.7.6
./configure --prefix=/tools
make
make install

cd $LFS/sources/
tar xfv perl-5.30.1.tar.xz
cd perl-5.30.1
sh Configure -des -Dprefix=/tools -Dlibs=-lm -Uloclibpth -Ulocincpth
make
cp -v perl cpan/podlators/scripts/pod2man /tools/bin
mkdir -pv /tools/lib/perl5/5.30.1
cp -Rv lib/* /tools/lib/perl5/5.30.1

cd $LFS/sources/
tar xfv Python-3.8.1.tar.xz
cd  Python-3.8.1
sed -i '/def add_multiarch_paths/a \        return' setup.py
./configure --prefix=/tools --without-ensurepip
make
make install

cd $LFS/sources/
tar xfv sed-4.8.tar.xz
cd sed-4.8
./configure --prefix=/tools
make
make install

cd $LFS/sources/
tar xfv tar-1.32.tar.xz
cd tar-1.32
./configure --prefix=/tools
make
make install

cd $LFS/sources/
tar xfv texinfo-6.7.tar.xz
cd texinfo-6.7
./configure --prefix=/tools
make
make install

cd $LFS/sources/
tar xfv util-linux-2.35.1.tar.xz
cd util-linux-2.35.1
./configure --prefix=/tools                \
            --without-python               \
            --disable-makeinstall-chown    \
            --without-systemdsystemunitdir \
            --without-ncurses              \
            PKG_CONFIG=""
make
make install

cd $LFS/sources/
tar xfv xz-5.2.4.tar.xz
cd xz-5.2.4
./configure --prefix=/tools
make
make install

strip --strip-debug /tools/lib/*
/usr/bin/strip --strip-unneeded /tools/{,s}bin/*

En tant que root (ne pas oublie $LFS !)

chown -R root:root $LFS/tools