My Gentoo Install Command List(under VirtualBox)

gistfile1.sh

# Reference: http://www.gentoo.org/doc/zh_cn/gentoo-x86-quickinstall.xml
##########################################################################
##### part 1: boot with gentoo minimal #####

# boot
gentoo

# config network
net-setup eth0
ifconfig

# start sshd
/etc/init.d/sshd start

# set root passwd
passwd

# prepre disks
fdisk /dev/sda
# partitions:
# /dev/sda1 (boot)
# /dev/sda2 (swap)
# /dev/sda3 (linux)

# create file systems
mke2fs /dev/sda1
mke2fs -j /dev/sda3
mkswap /dev/sda2 && swapon /dev/sda2

# mount file systems
mount /dev/sda3 /mnt/gentoo
mkdir /mnt/gentoo/boot
mount /dev/sda1 /mnt/gentoo/boot

##### part 2: install stage packages #####

# download stage 3 package
cd /mnt/gentoo
links http://www.gentoo.org/main/en/mirrors.xml
# pick a mirror, and go into "releases/x86/current-stage3/", pick the archive file and press "D" to download
# extract the archive
time tar xjpf stage3*

# download portage package
cd /mnt/gentoo/usr
links http://www.gentoo.org/main/en/mirrors.xml
# pick a mirror, go into "snapshot/" and download "portage-latest.tar.bz2"
time tar xjpf portage*

##### part 3: switch system #####

# chroot
cd /
mount -t proc proc /mnt/gentoo/proc
mount -o bind /dev /mnt/gentoo/dev
cp -L /etc/resolv.conf /mnt/gentoo/etc/
chroot /mnt/gentoo /bin/bash
env-update && source /etc/profile

# set time-zone
cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
date
# set host name
cd /etc
echo "127.0.0.1 mybox.at.myplace mybox localhost" > hosts
sed -i -e 's/HOSTNAME.*/HOSTNAME="mybox"/' conf.d/hostname
hostname mybox
hostname -f

##### part 4: kernel configuration #####

# install kernel sources, compile and install kernel
time emerge gentoo-sources
cd /usr/src/linux
make menuconfig
time make -j2
make modules_install
cp arch/i386/boot/bzImage /boot/kernel

# configuration for booting, network, etc.
cd /etc
nano -w fstab
# /dev/sda1   /boot     ext2    noauto,noatime     1 2
# /dev/sda3   /         ext3    noatime            0 1
# /dev/sda2   none      swap    sw                 0 0
cd conf.d
# (optional) add network configuration
echo 'config_eth0=( "192.168.1.10/24" )' >> net
echo 'routes_eth0=( "default via 192.168.1.1" )' >> net
rc-update add net.eth0 default
# if you compiled network driver as a module, you need to add it to "/etc/modules.autoload.d/kernel-2.6")
echo r8169 >> /etc/modules.autoload.d/kernel-2.6
# if you want sshd at startup
rc-update add sshd default
# set root password (again?!)
passwd
# set timezone
nano -w /etc/conf.d/clock
# (optional) check some configuration
nano -w /etc/rc.conf
nano -w /etc/conf.d/rc
nano -w /etc/conf.d/keymaps

# install syslog and cron
time emerge syslog-ng vixie-cron
rc-update add syslog-ng default
rc-update add vixie-cron default

# (optional) other tools
emerge xfsprogs       (XFS file system)
emerge jfsutils       (JFS file system)
emerge reiserfsprogs  (Reizer file system)
emerge dhcpcd         (DHCP client)
emerge ppp            (ADSL pppoe client)

# install boot loader
time emerge grub
nano -w /boot/grub/grub.conf
# * grub.conf example:
# default 0
# timeout 10
# 
# title Gentoo
# root (hd0,0)
# kernel /boot/kernel root=/dev/sda3
grub
# * setup grub in the grub command line:
# grub>root (hd0,0)
# grub>setup (hd0)
# grub>quit
exit
umount /mnt/gentoo/dev /mnt/gentoo/proc /mnt/gentoo/boot /mnt/gentoo
reboot

# remove CD-ROM and install finish!

##### part 5: post installation settings #####

# login with root
# (optional) if you use ssh to do the setup above, remove previous ssh key manually and reconnect with ssh
nano -w ~/.ssh/known_hosts
ssh root@192.168.1.10

# add a normal user
useradd -g users -G lp,wheel,audio,cdrom,portage,cron -m <your_username>
passwd <your_username>

# config mirror
emerge mirrorselect
mirrorselect -i -o >> /etc/make.conf
mirrorselect -i -r -o >> /etc/make.conf
# "-jn" where n is the number of CPUs + 1, it is for running multiple compiler processes on multiple processors
echo 'MAKEOPTS="-j2"' >> /etc/make.conf

# turn on/off some USE flags
emerge -vpe world
# example(turn off "ipv6", "fortran" and turn on "unicode"):
# echo 'USE="nptl nptlonly -ipv6 -fortran unicode"' >> /etc/make.conf

# configure languages
cd /etc
nano -w locale.gen
locale-gen

# last but not least, configure your make.conf file for future ebuilds
nano -w make.conf

# update softwares
# install ccache
emerge ccache
# list update softwares
emerge -vpuD --newuse world
# update
time emerge -vuD --newuse world
# reinstall libtool to prevent some potential problems
emerge --oneshot libtool
# update configuration
dispatch-conf
# (optional) if perl has been updated, also run perl-cleaner
time perl-cleaner all
# (optional) if some python packages have been updated, also run python-updater
python-updater

# What's next? install GNOME or KDE, or sth else?