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#!/bin/bash
#
# System installer.
#
# Load
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load
# Setup.
hydra_user_input device /dev/sdb "Destination device"
hydra_user_input garbage y "Pre-fill volumes with garbage? (y/n)"
hydra_user_input hostname $HOSTNAME "Hostname"
hydra_user_input domain example.com "Domain"
hydra_user_input arch amd64 "System arch"
hydra_user_input version squeeze "Distro version"
hydra_user_input vg vg "Temporary install vg"
hydra_user_input grub n "Setup GRUB? (y/n)"
# Check for requirements.
for req in debootstrap cryptsetup grub-pc lvm2; do
hydra_install_package $req
done
# Warning.
cat <<-EOF
Make sure you have chosen the right parameters and that $device has the needed partitions:
# fdisk -l $device
Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cilindros of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Dispositivo Boot Start End Blocks Id System
${device}1 1 249 2000061 82 Linux swap
${device}2 * 250 273 192780 83 Linux
${device}3 274 121601 974567160 8e Linux LVM
The number of blocks are figurative: the important thing is to have the
partition layout listed above.
Press ENTER to continue, Ctrl-C to abort."
EOF
read answer
# Create volumes.
echo "Creating the needed disk volumes..."
pvcreate "$device"3
vgcreate $vg "$device"3
lvcreate -L20G -n root $vg
vgchange -a y $vg
# Garbage.
if [ "$garbage" == "y" ]; then
echo "Filling volumes with garbage..."
dd if=/dev/urandom of=/dev/$vg/root
dd if=/dev/urandom of="$device"1
fi
# Create root device.
echo "Creating root device..."
cryptsetup -h sha256 -c aes-cbc-essiv:sha256 -s 256 luksFormat /dev/$vg/root
cryptsetup luksOpen /dev/$vg/root debootstrap
mkfs.ext3 /dev/mapper/debootstrap
# Initial system install.
echo "Installing base system..."
mkdir -p /tmp/debootstrap
mount /dev/mapper/debootstrap /tmp/debootstrap/
debootstrap --arch=$arch $version /tmp/debootstrap/
# Initial configuration.
echo "Applying initial configuration..."
mount none -t proc /tmp/debootstrap/proc/
mount -o bind /dev/ /tmp/debootstrap/dev
cp -L /etc/resolv.conf /tmp/debootstrap/etc
echo $hostname.$domain > /tmp/debootstrap/etc/hostname
echo "127.0.0.1 $hostname $hostname.$domain" >> /tmp/debootstrap/etc/hosts
echo "127.0.0.1 localhost" >> /tmp/debootstrap/etc/hosts
echo LANG=C > /tmp/debootstrap/etc/default/locale
# Initial upgrade.
echo "Applying initial upgrades..."
chroot /tmp/debootstrap/ apt-get update
chroot /tmp/debootstrap/ apt-get upgrade -y
chroot /tmp/debootstrap/ apt-get install locales cryptsetup lvm2 initramfs-tools -y
# Crypttab.
echo "Configuring crypttab..."
cat > /tmp/debootstrap/etc/crypttab <<-EOF
# <target name> <source device> <key file> <options>
root /dev/mapper/vg-root none luks,cipher=aes-cbc-essiv:sha256
cswap "$device"1 /dev/random swap,cipher=aes-cbc-essiv:sha256
EOF
# Fstab.
echo "Configuring fstab..."
cat > /tmp/debootstrap/etc/fstab <<-EOF
/dev/mapper/cswap none swap sw 0 0
/dev/mapper/root / ext3 defaults,errors=remount-ro 0 1
EOF
# Boot.
echo "Boot device setup..."
mkfs.ext3 "$device"2
mount "$device"2 /tmp/debootstrap/boot
echo "$device""2 /boot ext3 defaults,errors=remount-ro 0 2" >> /tmp/debootstrap/etc/fstab
# Grub.
if [ "$grub" == "y" ]; then
echo "Setting up GRUB..."
chroot /tmp/debootstrap/ apt-get install grub-pc -y
grub-install --no-floppy "$device"
mkdir -p /tmp/debootstrap/boot/grub/
cat /tmp/debootstrap/boot/grub/menu.lst <<-EOF
title $hostname (hd0)
root (hd0,1)
kernel /vmlinuz-2.6.26-2-vserver-amd64 root=/dev/mapper/root ro quiet rootdelay=10
initrd /initrd.img-2.6.26-2-vserver-amd64
title $hostname (hd0) (single)
root (hd0,1)
kernel /vmlinuz-2.6.26-2-vserver-amd64 root=/dev/mapper/root ro single rootdelay=10
initrd /initrd.img-2.6.26-2-vserver-amd64
EOF
fi
# Kernel.
echo "Installing kernel..."
cat > /tmp/debootstrap/etc/initramfs-tools/modules <<-EOF
dm-mod
dm-crypt
aes
twofish
sha256
EOF
cat > /tmp/debootstrap/etc/kernel-img.conf <<-EOF
do_initrd = Yes
EOF
if [ "$arch" == "i386" ]; then
kernel_arch="686"
else
kernel_arch="$arch"
fi
chroot /tmp/debootstrap apt-get install linux-image-2.6-vserver-$kernel_arch -y
# Initramfs.
echo "Creating initramfs..."
chroot /tmp/debootstrap update-initramfs -v -u
# Utils.
echo "Installing basic utilities..."
chroot /tmp/debootstrap apt-get install screen cron lsb-release openssl -y
# Ssh.
echo "Installing OpenSSH daemon..."
chroot /tmp/debootstrap apt-get install openssh-server -y
echo "OpenSSH fingerprints:"
chroot /tmp/debootstrap ssh-keygen -l -f /etc/ssh/ssh_host_dsa_key.pub
chroot /tmp/debootstrap ssh-keygen -l -f /etc/ssh/ssh_host_rsa_key.pub
# Accounts.
echo "Installing sudo..."
chroot /tmp/debootstrap apt-get install sudo -y
echo "Choose a root password."
chroot /tmp/debootstrap passwd root
cat <<-EOF
Now proceeed with final steps:
- Create an user account with sudo privileges.
- Network setup.
See http://padrao.sarava.org/install for more information.
EOF
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