Linux-From-Scratch

Building your own custom Linux system

Description

• Unfortunately, due to the size of the image, i'm not able to upload it on github
• Manual written writeup is available through the writeup folder with all detailed steps

Version

• This system uses a compiled Linux kernel in its version 4.15.3

Disks

• There are 3 partitions on the system (root, /boot, swap)

$ lsblk
NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
[...]
sdb      8:16   0   13G  0 disk 
|-sdb1   8:17   0  100M  0 part /mnt/lfs/boot
|-sdb2   8:18   0    9G  0 part /mnt/lfs
`-sdb3   8:19   0  3.9G  0 part [SWAP]

Bootloader

• The distro is booting from grub with the following configuration (40_custom)

insmod part_gpt
insmod ext2
set root='hd1,gpt1'

menuentry "ft_linux, Linux 4.15.3-lumenthi" {
	linux /vmlinuz-4.15.3-lumenthi root=/dev/sdb2
}

Kernel modules loader

• Kernel modules are managed by udev (https://wiki.debian.org/fr/udev)

Daemon manager

• This system is based on SysVinit (https://wiki.archlinux.org/title/SysVinit)

The bible

https://www.linuxfromscratch.org/lfs/