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@ -3,17 +3,19 @@ Instructions and scripts to build LFS (Linux From Scratch) 10.0 as simply as pos
# Foreword
First, this guide does not replace reading the whole LFS book. I highly recommend that you read it, at least once, and then go to the automation scripts provided here.
First, this guide does not replace reading the whole LFS book. I highly recommend that you read it at least once. Only then you should use the automation scripts provided here.
This build will be done inside a virtual machine, for that I'll be using Oracle VirtualBox, but you can use the tool you prefer. I'm running an Arch Linux VM, feel free to use your GNU/Linux distro of preference. Just be sure to install the development tools (base-devel package on Arch).
This build will be accomplished inside a virtual machine. I'll be using Oracle VirtualBox, but you can use the tool of your personal preference. I'm running an Arch Linux VM, feel free to use your GNU/Linux distribution of choice. Just be sure to install the development tools available (base-devel package on Arch).
My VM has two virtual hard disks: one for the host (Arch Linux itself) and another for building LFS. You could also use a single hard disk with two partitions, that's up to personal preference. I've decided to use two separate hard disks so I can completely isolate LFS from the host after the build. At the end, you'll be able to create a separate VM and boot it.
My VM has two virtual hard disks: one for the host (Arch Linux itself) and another for building LFS. You could also use a single hard disk with two partitions, that's up to personal taste. I've decided to use two separate hard disks so I can completely isolate LFS from the host after the build. At the end, you'll be able to create a separate VM and boot it directly.
The packages needed to build LFS were obtained from ftp://ftp.lfs-matrix.net/pub/lfs/lfs-packages/lfs-packages-10.0.tar (423 MB), other mirrors are available at http://linuxfromscratch.org/lfs/download.html
The packages needed to build LFS were downloaded from [here](ftp://ftp.lfs-matrix.net/pub/lfs/lfs-packages/lfs-packages-10.0.tar) (423 MB), other mirrors are available [here](http://linuxfromscratch.org/lfs/download.html)
# Build instructions
Create a partition and a filesystem in the virtual hard disk (/dev/sdb). Run commands as root:
:point_right: Run commands below as root.
Create a partition and a filesystem in the virtual hard disk (/dev/sdb):
```
mkdir /mnt/lfs
@ -26,7 +28,7 @@ n- new partition
<Enter> for all default values
w- write changes
Create a filysystem, a mount point, and mount it:
Create a filesystem, a mount point, and mount it:
```
mkfs.ext4 /dev/sdb1
@ -34,19 +36,19 @@ mkdir /mnt/lfs
mount /dev/sdb1 /mnt/lfs
```
Include the following command to root's .bashrc:
Add the following line to root's .bashrc:
```
export LFS=/mnt/lfs
```
Source the file to use the variable:
Source the file:
```
source .bashrc
```
Download all the packages and extract them to /mnt/lfs/sources.
Download all the packages and extract them to $LFS/sources.
```
cd $LFS
@ -56,13 +58,13 @@ mv 10.0 sources
chmod -v a+wt $LFS/sources
```
Create the basic filesystem:
Create the basic filesystem for LFS:
```
mkdir -pv $LFS/{bin,etc,lib,sbin,usr,var,lib64,tools}
```
Create the lfs user, used during the initial build process:
Create the lfs user, used during the initial build process (you will have to type a password):
```
groupadd lfs
@ -70,9 +72,7 @@ useradd -s /bin/bash -g lfs -m -k /dev/null lfs
passwd lfs
```
You will have to type a password.
Make lfs the owner of the filesystem:
Make lfs own the entire filesystem:
```
chown -R lfs:lfs $LFS/*
@ -108,16 +108,16 @@ PATH=$LFS/tools/bin:$PATH
export LFS LC_ALL LFS_TGT PATH
EOF
source ~/.bash_profile
source ~/.bashrc
```
Copy all the scripts from this repository to your $LFS directory:
Copy all the shell scripts from this repository to your $LFS directory:
```
cp /<location_of_the_scripts>/*.sh $LFS
```
Now, run the lfs-cross.sh script, which will build the cross-toolchain and cross compiling temporary tools from chapters 5 and 6. The build took 30 min on my machine:
Now, run the lfs-cross.sh script, which will build the cross-toolchain and cross compiling temporary tools from chapters 5 and 6. The build took approximately 30 minutes on my machine:
```
cd $LFS