Quick guide to install Gentoo

quick installation

booting Live CD
set up network
partition disk (eg. /dev/sda)
/dev/sda1  /boot      100MB
/dev/sda2  swap       2.5*MEM
/dev/sda3  /          10GB
/dev/sda5  /scratch   

prepare installation directory
$ mount /dev/sda3 /mnt/gentoo
$ mkdir /mnt/gentoo/boot
$ mount boot /mnt/gentoo/boot
check date 
change current directory to /mnt/gentoo 
download stage3 (links http://ftp.isu.edu.tw)
untar dowloaded stage file
configure compile options in etc/make.conf
CHOST="x86_64-pc-linux-gnu"
CFLAGS="-O2 -march=opteron -pipe"
CXXFLAGS="${CFLAGS}"
MAKEOPTS="-j3"

change root
$ cp -L /etc/resolve.conf /mnt/gentoo/etc/resolv.conf
$ mount -t proc none /mnt/gentoo/proc
$ mount -o bind /dev /mnt/gentoo/dev
$ chroot /mnt/gentoo /bin/bash
$ env-update
$ source /etc/profile
$ emerge --sync

install utilities for configuration

$ emerge vim ntp gentoolkit pciutils
$ cp -f /usr/share/zoneinfo/Asia/Taipei /etc/localtime
$ ntpdate stdtime.sinica.edu.tw; hwclock {--directisa} -w

check or change profiles (ls -FGg /etc/make.profile)
$ edit /etc/locale.gen ; run 'locale-gen'

update system (emerge system)
$ emerge gentoo-sources genkernel

configure kernel options

install utilities for administration

$ emerge syslog-ng vixie-cron logrotate logwatch xxfsprog tcsh nmap screen
$ emerge grub
.....
$ umount /mnt/gentoo/boot /mnt/gentoo/dev /mnt/gentoo/proc /mnt/gentoo


add daily services

10 5 * * * /usr/sbin/ntpdate stdtime.sinica.edu.tw && /sbin/hwclock -w


local mail delievery

install relative packages
$ USE="mailwrapper" emerge postfix procmail

use /etc/procmailrc below
DEFAULT=/var/spool/mail/$LOGNAME
SHELL=/bin/sh

modify those options in /etc/postfix/main.cf
myhostname = xxxx
mydomain = xxxx
inet_interfaces = localhost  # only allow local mail delievery
home_mailbox = /var/spool/mail/$LOGNAME
mailbox_command = /usr/bin/procmail

build aliases.db in /etc/mail/
$ newaliases

send a test mail with subject "test" 
$ /etc/init.d/postfix start
$ mail -s "test" your.mail.com
.
Ctrl+D

add postfix to startup

$ rc-update add postfix default

integration with your cluster

install relative packages
$ emerge ypbind nfs-utils

modify system database and switch file /etc/nsswitch.conf
#passwd:      compat
#shadow:      compat
#group:       compat

passwd:    db files nis
shadow:    db files nis
group:     db files nis

enable ypbind service and add it to startup
$ /etc/init.d/ypbind start
$ rc-update add ypbind default