Update README.md

README.md

@@ -81,6 +81,8 @@ Login as the lfs user:
 su - lfs
 ```
 
+:point_right: Run commands below as lfs.
+
 Create a .bash_profile file:
 
 ```
@@ -119,3 +121,104 @@ Now, run the lfs-cross.sh script, which will build the cross-toolchain and cross
 cd $LFS
 sh lfs-cross.sh | tee lfs-cross.log
 ```
+
+Return to being root:
+
+```
+exit
+```
+
+:point_right: Run commands below as lfs.
+
+Make root own the entire filesystem again:
+
+```
+chown -R root:root $LFS/*
+chown root:root $LFS
+```
+
+Prepare virtual kernel file systems:
+
+```
+mkdir -pv $LFS/{dev,proc,sys,run}
+mknod -m 600 $LFS/dev/console c 5 1
+mknod -m 666 $LFS/dev/null c 1 3
+mount -v --bind /dev $LFS/dev
+mount -v --bind /dev/pts $LFS/dev/pts
+mount -vt proc proc $LFS/proc
+mount -vt sysfs sysfs $LFS/sys
+mount -vt tmpfs tmpfs $LFS/run
+if [ -h $LFS/dev/shm ]; then
+  mkdir -pv $LFS/$(readlink $LFS/dev/shm)
+fi
+```
+
+Enter the chroot environment:
+
+```
+chroot "$LFS" /usr/bin/env -i   \
+    HOME=/root                  \
+    TERM="$TERM"                \
+    PS1='(lfs chroot) \u:\w\$ ' \
+    PATH=/bin:/usr/bin:/sbin:/usr/sbin \
+    /bin/bash --login +h
+```
+
+Create essential directories, files and symlinks:
+
+```
+mkdir -pv /{boot,home,mnt,opt,srv}
+mkdir -pv /etc/{opt,sysconfig}
+mkdir -pv /lib/firmware
+mkdir -pv /media/{floppy,cdrom}
+mkdir -pv /usr/{,local/}{bin,include,lib,sbin,src}
+mkdir -pv /usr/{,local/}share/{color,dict,doc,info,locale,man}
+mkdir -pv /usr/{,local/}share/{misc,terminfo,zoneinfo}
+mkdir -pv /usr/{,local/}share/man/man{1..8}
+mkdir -pv /var/{cache,local,log,mail,opt,spool}
+mkdir -pv /var/lib/{color,misc,locate}
+ln -sfv /run /var/run
+ln -sfv /run/lock /var/lock
+install -dv -m 0750 /root
+install -dv -m 1777 /tmp /var/tmp
+ln -sv /proc/self/mounts /etc/mtab
+echo "127.0.0.1 localhost $(hostname)" > /etc/hosts
+cat > /etc/passwd << "EOF"
+root:x:0:0:root:/root:/bin/bash
+bin:x:1:1:bin:/dev/null:/bin/false
+daemon:x:6:6:Daemon User:/dev/null:/bin/false
+messagebus:x:18:18:D-Bus Message Daemon User:/var/run/dbus:/bin/false
+nobody:x:99:99:Unprivileged User:/dev/null:/bin/false
+EOF
+cat > /etc/group << "EOF"
+root:x:0:
+bin:x:1:daemon
+sys:x:2:
+kmem:x:3:
+tape:x:4:
+tty:x:5:
+daemon:x:6:
+floppy:x:7:
+disk:x:8:
+lp:x:9:
+dialout:x:10:
+audio:x:11:
+video:x:12:
+utmp:x:13:
+usb:x:14:
+cdrom:x:15:
+adm:x:16:
+messagebus:x:18:
+input:x:24:
+mail:x:34:
+kvm:x:61:
+wheel:x:97:
+nogroup:x:99:
+users:x:999:
+EOF
+touch /var/log/{btmp,lastlog,faillog,wtmp}
+chgrp -v utmp /var/log/lastlog
+chmod -v 664  /var/log/lastlog
+chmod -v 600  /var/log/btmp
+exec /bin/bash --login +h
+```