$ cat /etc/apt/sources.list
#
# deb cdrom:[Debian GNU/Linux 4.0 r0 _Etch_ - Official i386 DVD Binary-1 20070407-11:40]/ etch contrib main

# deb cdrom:[Debian GNU/Linux 4.0 r0 _Etch_ - Official i386 DVD Binary-1 20070407-11:40]/ etch contrib main

# Line commented out by installer because it failed to verify:
deb http://security.debian.org/ etch/updates main contrib
# Line commented out by installer because it failed to verify:
#deb-src http://security.debian.org/ etch/updates main contrib

deb file:///mnt/debian-40r0-i386-DVD-1 etch main contrib
deb file:///mnt/debian-40r0-i386-DVD-2 etch main contrib
deb file:///mnt/debian-40r0-i386-DVD-3 etch main contrib
deb file:///mnt/debian-update-4.0r1-i386-DVD-1 etch main contrib