gentoo install 'script'

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

#  Getting eth0 up
ifconfig eth0 up

#  Getting eth1 up
ifconfig eth1 up

#  Enabling dhcp
dhcpcd

#  Preparing partitions
dd if=/dev/zero of=/dev/sda bs=1024 count=1024
echo -e "n\np\n1\n\n+51M\np\nn\np\n2\n\n+1G\nt\n2\n82\nn\np\n3\n\n\np\nw\n" > /tmp/fdisk.partitions
fdisk /dev/sda < /tmp/fdisk.partitions

#  Preparing boot
mke2fs /dev/sda1

#  Preparing /
mke2fs -j /dev/sda3

#  Preparing swap
mkswap /dev/sda2

#  Turning on swap
swapon /dev/sda2

#  Mounting
mount /dev/sda3 /mnt/gentoo
mkdir /mnt/gentoo/boot
mount /dev/sda1 /mnt/gentoo/boot
# OpenRC Fixes: http://xrl.us/openrc
mkdir /mnt/gentoo/dev
cd /mnt/gentoo/dev
rm -rf null
mknod --mode=600 console c 5 1
mknod --mode=666 null c 1 3
mknod --mode=666 zero c 1 5
cd /mnt/gentoo

#  Setting date: Format is MMDDhhmmYYYY
read dateinput
date $dateinput

#  Downloading stage3
wget http://gentoo.mirrors.tds.net/gentoo/releases/amd64/autobuilds/current-stage3/stage3-amd64-20110609.tar.bz2

#  Downloading Portage
wget http://gentoo.mirrors.tds.net/gentoo/snapshots/portage-latest.tar.bz2

#  Extracting stage3
tar xvjpf stage3-*.tar.bz2

#  Extracting Portage
tar xvjf portage-latest.tar.bz2 -C /mnt/gentoo/usr

#  Edit make.conf
#  Safe cflags http://en.gentoo-wiki.com/wiki/Safe_Cflags/Intel
#  Used this at first...
#sed -i 's/CFLAGS="-O2 -pipe"/CFLAGS="-march=core2 -mtune=generic -O2 -pipe"/g' /mnt/gentoo/etc/make.conf
#  But warning on page above suggested using -march=native
sed -i 's/CFLAGS="-O2 -pipe"/CFLAGS="-march=native -mtune=generic -O2 -pipe"/g' /mnt/gentoo/etc/make.conf
echo MAKEOPTS=\"-j2\" >> /mnt/gentoo/etc/make.conf

#  Installing Gentoo base System: Chrooting - Selecting Mirrors
mirrorselect -i -o >> /mnt/gentoo/etc/make.conf
mirrorselect -i -r -o >> /mnt/gentoo/etc/make.conf

#  Copy DNS Info
cp -L /etc/resolv.conf /mnt/gentoo/etc/

#  Mounting the /proc and /dev Filesystems
mount -t proc none /mnt/gentoo/proc
mount --rbind /dev /mnt/gentoo/dev

#  Entering the new Environment
chroot /mnt/gentoo /bin/bash

#  Entering the new Environment
env-update
source /etc/profile
export PS1="(chroot) $PS1"

# OpenRC Fixes: http://xrl.us/openrc
rc-update add udev sysinit

#  Configuring Portage: Updating the Portage tree
emerge --sync

#  Choosing the Right Profile
eselect profile list

#  Which profile are we going to use?
#  Usually 7 default/linux/amd64/10.0/server
read profileselection
eselect profile set $profileselection

#  Configuring the USE variable
#nano -w /etc/make.conf
sed -i 's/USE="mmx sse sse2"/USE="mmx sse sse2 -gtk -gnome -qt4 -kde -dvd -alsa -cdr"/g' /etc/make.conf

##  Optional glibc Locales
#nano -w /etc/locale.gen
#set -i 's/#en_US/en_US/g' /etc/locale.gen
# no sure why that replace doesn't work...?

#  Configuring the Kernel: Timezone
cp /usr/share/zoneinfo/America/New_York /etc/localtime

#  Installing the Sources: Choosing a Kernel
emerge gentoo-sources

#  Alternative: Using genkernel
emerge genkernel
zcat /proc/config.gz > /usr/share/genkernel/arch/x86_64/kernel-config
genkernel --menuconfig all
# Enabled devtmpgfs: Drivers > General > devtmpfs
# This always fails the first time - running it again works...?

#  Kernel Modules: Configuring the Modules
#find /lib/modules/2.6.*gentoo-*/ -type f -iname '*.o' -or -iname '*.ko' | less

#  Configuring fstab
echo -e "/dev/sda1   /boot        ext2    defaults,noatime     1 2\n"\
"/dev/sda2   none         swap    sw                   0 0\n"\
"/dev/sda3   /            ext3    noatime              0 1\n\n"\
"#/dev/cdrom  /mnt/cdrom   auto    noauto,user          0 0\n\n"\
"proc        /proc        proc    defaults             0 0\n"\
"shm         /dev/shm     tmpfs   nodev,nosuid,noexec  0 0\n" > /etc/fstab

#  Networking Information: Host name, Domainname, etc
echo -e "# Set to the hostname of this machine\nHOSTNAME=\"myhostname\"" > /etc/conf.d/hostname
echo -e "dns_domain_lo=\"mydoma.in\"\n"\
"config_eth0=( \"dhcp\" )\n"\
"config_eth1=( \"dhcp\" )" >> /etc/conf.d/net

#  Automatically Start Networking at Boot
cd /etc/init.d
ln -s net.lo net.eth0
ln -s net.lo net.eth1
rc-update add net.eth0 default
rc-update add net.eth1 default

#  Writing Down Network Information
# real tab = ctrl-v + ctrl-i
sed -i 's/127.0.0.1    localhost/127.0.0.1     myhostname.mydoma.in myhostname localhost/g' /etc/hosts
sed -i 's/::1          localhost/::1          myhostname.mydoma.in myhostname localhost/g' /etc/hosts

#  System Information: root Password
passwd

#  System Information: System Information
#  This file doesn't exist, but it should...right?
#nano -w /etc/conf.d/clock

#  Installing Necessary System Tools
for apps in syslog-ng vixie-cron mlocate dhcpcd wgetpaste gpm
do
    echo Installing $apps
    emerge -v $apps

    case $apps in
        syslog-ng|vixie-cron)
            echo Adding $apps to rc-update default
            rc-update add $apps default
        ;;
    esac
done

#  Configuring the Bootloader: GRUB
emerge -v grub
echo -e "default 0\n"\
"timeout 30\n"\
"splashimage=(hd0,0)/boot/grub/splash.xpm.gz\n\n"\
"title Gentoo Linux 2.6.38-gentoo-r6 for x86_64\n"\
"root (hd0,0)\n"\
"kernel /boot/kernel-genkernel-x86_64-2.6.38-gentoo-r6 real_root=/dev/sda3\n"\
"#kernel /boot/kernel-genkernel-x86_64-2.6.38-gentoo-r6 real_root=/dev/sda3 video=uvesafb:mtrr:3,ywrap,1024x768-32@85\n"\
"initrd /boot/initramfs-genkernel-x86_64-2.6.38-gentoo-r6\n" > /boot/grub/grub.conf

#  Setting up GRUB using grub-install
grep -v rootfs /proc/mounts > /etc/mtab
grub-install --no-floppy /dev/sda

#  Exiting Chrooted environment
exit


#  Rebooting the System
cd
umount -l /mnt/gentoo/dev{/shm,/pts,}
# I always get an error that shm isn't mounted - that normal?
umount -l /mnt/gentoo{/boot,/proc,}
reboot