populating /dev

thorsten fly_a320 at gmx.de
Sat Apr 2 06:39:50 PST 2005

> LFS 6.0 - Is it necessary to populate dev every time you enter the chroot env.   

Yes, prior entering you have to check that:
is mounted.

Do the fake mounts:
mount -f -t ramfs ramfs $LFS/dev
mount -f -t tmpfs tmpfs $LFS/dev/shm
mount -f -t devpts -o gid=4,mode=620 devpts $LFS/dev/pts

enter chroot:
chroot "$LFS" /tools/bin/env -i \
     HOME=/root TERM="$TERM" PS1='\u:\w\$ ' \
     PATH=/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin \
     /tools/bin/bash --login +h

mount ramfs:
mount -n -t ramfs none /dev

start udev:

create symlinks:
ln -s /proc/self/fd /dev/fd
ln -s /proc/self/fd/0 /dev/stdin
ln -s /proc/self/fd/1 /dev/stdout
ln -s /proc/self/fd/2 /dev/stderr
ln -s /proc/kcore /dev/core
mkdir /dev/pts
mkdir /dev/shm

mount kernel file systems:
mount -t devpts -o gid=4,mode=620 none /dev/pts
mount -t tmpfs none /dev/shm

that should get you started again. However I suggest to build LFS 
without interruption for the first time. Try to keep the Computer 
running until you are finnished. There are too much things that can go 

More information about the lfs-support mailing list