$ cat notes.txt
https://www.linuxfromscratch.org/lfs/downloads/stable/LFS-BOOK-12.0-NOCHUNKS.html#pre-foreword

2.2.1
vm 16GB RAM, 4vCPU, 20GBx2 HDD

2.2.2
deb11
apt-get install build-essential bison gawk m4 texinfo
ln -sf /usr/bin/bash /usr/bin/sh

root@debian:~# bash version-check.sh 
OK:    Coreutils 8.32   >= 7.0
OK:    Bash      5.1.4  >= 3.2
OK:    Binutils  2.35.2 >= 2.13.1
OK:    Bison     3.7.5  >= 2.7
OK:    Diffutils 3.7    >= 2.8.1
OK:    Findutils 4.8.0  >= 4.2.31
OK:    Gawk      5.1.0  >= 4.0.1
OK:    GCC       10.2.1 >= 5.1
OK:    GCC (C++) 10.2.1 >= 5.1
OK:    Grep      3.6    >= 2.5.1a
OK:    Gzip      1.10   >= 1.3.12
OK:    M4        1.4.18 >= 1.4.10
OK:    Make      4.3    >= 4.0
OK:    Patch     2.7.6  >= 2.5.4
OK:    Perl      5.32.1 >= 5.8.8
OK:    Python    3.9.2  >= 3.4
OK:    Sed       4.7    >= 4.1.5
OK:    Tar       1.34   >= 1.22
OK:    Texinfo   6.7    >= 5.0
OK:    Xz        5.2.5  >= 5.0.0
OK:    Linux Kernel 5.10.0 >= 4.14
OK:    Linux Kernel supports UNIX 98 PTY
Aliases:
OK:    awk  is GNU
OK:    yacc is Bison
OK:    sh   is Bash
Compiler check:
OK:    g++ works

2.4
/boot
/
/home