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2.2. Host System Requirements
Your host system should have the following software with the minimum versions indicated. This should not be an issue for most modern Linux distributions. Also note that many distributions will place software headers into separate packages, often in the form of “<package-name>-devel” or “<package-name>-dev”. Be sure to install those if your distribution provides them.
Earlier versions of the listed software packages may work, but have not been tested.
• Bash-3.2 (/bin/sh should be a symbolic or hard link to bash)
• Binutils-2.25 (Versions greater than 2.32 are not recommended as they have not been tested)
• Bison-2.7 (/usr/bin/yacc should be a link to bison or small script that executes bison)
• Bzip2-1.0.4
• Coreutils-6.9
• Diffutils-2.8.1
• Findutils-4.2.31
• Gawk-4.0.1 (/usr/bin/awk should be a link to gawk)
• GCC-6.2 including the C++ compiler, g++ (Versions greater than 9.2.0 are not recommended as they have not been tested)
• Glibc-2.11 (Versions greater than 2.30 are not recommended as they have not been tested)
• Grep-2.5.1a
• Gzip-1.3.12
• Linux Kernel-3.2
The reason for the kernel version requirement is that we specify that version when building glibc in Chapter 6 at the recommendation of the developers. It is also required by udev.
If the host kernel is earlier than 3.2 you will need to replace the kernel with a more up to date version. There are two ways you can go about this. First, see if your Linux vendor provides a 3.2 or later kernel package. If so, you may wish to install it. If your vendor doesn't offer an acceptable kernel package, or you would prefer not to
install it, you can compile a kernel yourself. Instructions for compiling the kernel and configuring the boot loader (assuming the host uses GRUB) are located in Chapter 8.
• M4-1.4.10
• Make-4.0
• Patch-2.5.4
• Perl-5.8.8
• Python-3.4
• Sed-4.1.5
• Tar-1.22
• Texinfo-4.7
• Xz-5.0.0
Important
Note that the symlinks mentioned above are required to build an LFS system using the instructions contained within this book. Symlinks that point to other software (such as dash, mawk, etc.) may work, but are not tested or supported by the LFS development team, and may require either deviation from the instructions or additional patches to some packages.
Important
Note that the symlinks mentioned above are required to build an LFS system using the instructions contained within this book. Symlinks that point to other software (such as dash, mawk, etc.) may work, but are not tested or supported by the LFS development team, and may require either deviation from the instructions or additional patches to some packages.
echo elif [
echo else
echo
fi
echo elif [
echo else
echo
fi
-n "Coreutils: "; chown --version | head -n1 | cut
-n "Coreutils: "; chown --version | head -n1 | cut
--version
--version
--version
--version
--version
--version
|
|
|
|
|
|
head
head head
head
head head
-n1
-n1
-n1
-n1
-n1
-n1
"/usr/bin/awk -> `readlink -f /usr/bin/awk`";
-x /usr/bin/awk ]; then
awk is `/usr/bin/awk --version | head -n1`
"/usr/bin/awk -> `readlink -f /usr/bin/awk`";
-x /usr/bin/awk ]; then
awk is `/usr/bin/awk --version | head -n1`
"awk not found"
"awk not found"
To see whether your host system has all the appropriate versions, and the ability to compile programs, run the following:
cat > version-check.sh << "EOF"
#!/bin/bash
# Simple script to list version numbers of critical development tools export LC_ALL=C
bash --version | head -n1 | cut -d" " -f2-4 MYSH=$(readlink -f /bin/sh)
echo "/bin/sh -> $MYSH"
echo $MYSH | grep -q bash || echo "ERROR: /bin/sh does not point to bash" unset MYSH
echo -n "Binutils: "; ld --version | head -n1 | cut -d" " -f3- bison --version | head -n1
if [ -h /usr/bin/yacc ]; then
cat > version-check.sh << "EOF"
#!/bin/bash
# Simple script to list version numbers of critical development tools export LC_ALL=C
bash --version | head -n1 | cut -d" " -f2-4 MYSH=$(readlink -f /bin/sh)
echo "/bin/sh -> $MYSH"
echo $MYSH | grep -q bash || echo "ERROR: /bin/sh does not point to bash" unset MYSH
echo -n "Binutils: "; ld --version | head -n1 | cut -d" " -f3- bison --version | head -n1
if [ -h /usr/bin/yacc ]; then
"/usr/bin/yacc -> `readlink -f /usr/bin/yacc`";
-x /usr/bin/yacc ]; then
yacc is `/usr/bin/yacc --version | head -n1`
"/usr/bin/yacc -> `readlink -f /usr/bin/yacc`";
-x /usr/bin/yacc ]; then
yacc is `/usr/bin/yacc --version | head -n1`
"yacc not found"
bzip2 --version 2>&1 < /dev/null | head -n1 | cut -d" " echo
diff
find gawk
-f1,6-
-d")" -f2
"yacc not found"
bzip2 --version 2>&1 < /dev/null | head -n1 | cut -d" " echo
diff
find gawk
if [ -h /usr/bin/awk ]; then
if [ -h /usr/bin/awk ]; then
echo elif [
echo else
echo
fi
echo elif [
echo else
echo
fi
gcc --version | head -n1 g++ --version | head -n1
ldd --version | head -n1 | cut -d" " -f2- # glibc version grep --version | head -n1
gzip --version | head -n1 cat /proc/version
m4 --version | head -n1 make --version | head -n1 patch --version | head -n1 echo Perl `perl -V:version` python3 --version
sed --version | head -n1 tar --version | head -n1
makeinfo --version | head -n1 # texinfo version xz --version | head -n1
gcc --version | head -n1 g++ --version | head -n1
ldd --version | head -n1 | cut -d" " -f2- # glibc version grep --version | head -n1
gzip --version | head -n1 cat /proc/version
m4 --version | head -n1 make --version | head -n1 patch --version | head -n1 echo Perl `perl -V:version` python3 --version
sed --version | head -n1 tar --version | head -n1
makeinfo --version | head -n1 # texinfo version xz --version | head -n1
echo 'int main(){}' > dummy.c && g++ -o dummy dummy.c if [ -x dummy ]
then echo "g++ compilation OK";
else echo "g++ compilation failed"; fi rm -f dummy.c dummy
EOF
bash version-check.sh
echo 'int main(){}' > dummy.c && g++ -o dummy dummy.c if [ -x dummy ]
then echo "g++ compilation OK";
else echo "g++ compilation failed"; fi rm -f dummy.c dummy
EOF
bash version-check.sh