Vincent Zoonekynd's Blog

Sun, 14 Oct 2007: Gentoo 2007.0

I decided to reinstall Gentoo Linux on my computer, but this time I wanted the whole drive to be encrypted -- including the system partition and the swap, and not only the data partition, as before. Among the other non-standard details, I also have a Wacom tablet and want to be able to type Japanese text. I proceeded as follows (if you do not want that much encryption, just use the livecd: you have a complete, useable system in less than one hour, instead of one or two days).

# Boot the livecd
# Make sure the keyboard is set properly. If not (for a British  keyboard): 
loadkeys uk

# Delete the whole disk (the speed was 5 to 6 MB/s)
dd if=/dev/urandom of=/dev/hda bs=2048k
# Create four partitions: boot, swap, system and home
fdisk /dev/hda
# Encrypt them (the boot partition is not encrypted, 
# the swap will be taken care of later)
cryptsetup luksFormat /dev/hda3
cryptsetup luksFormat /dev/hda4
cryptsetup luksOpen /dev/hda3 root
cryptsetup luksOpen /dev/hda4 home
# Mount those partitions
mkdir /mnt/gentoo
mount /dev/mapper/root /mnt/gentoo
mkdir /mnt/gentoo/home
mount /dev/mapper/home /mnt/gentoo/home
mkdir /mnt/gentoo/boot
mount /dev/hda1 /mnt/gentoo/boot

# Download and install a stage3 tarball (in the releases directory)
cd /mnt/gentoo
tar pjxvf stage3*
# Download and install a portage snapshot
cd usr
tar jxvf ../portage*

# Check the date (UTC, format is MMDDhhmmYYYY)
date 060319002007
# Set the timezone
cd /mnt/gentoo
ls usr/share/zoneinfo
cp usr/share/zoneinfo/Europe/London /etc/localtime
# Set the timezone (again): TIMEZONE="Europe/London"
vi etc/conf.d/clock

# Create the chroot
mount -t proc proc /mnt/gentoo/proc
cp -L /etc/resolv.conf /mnt/gentoo/etc/
chroot /mnt/gentoo /bin/bash
source /etc/profile
emerge vim

# You may want to set the name of the computer
vi /etc/hosts
vi /etc/conf.d/hostname
hostname localhost

# Compile the kernel
# Make sure you ask for luks (that should be installed before)
# Make sure you do not forget to compile in (not as modules) all the ciphers
# you need.
# Make sure you do not forget dm-crypt (in the RAID subsection of the device
# drivers subsection).
emerge gentoo-sources genkernel cryptsetup-luks grub
genkernel --menuconfig --luks all

# Edit /boot/grub/grub.conf
timeout 10
default 0
title genkernel-x86_64-2.6.20-gentoo-r8
root (hd0,0)
kernel /kernel-genkernel-x86_64-2.6.20-gentoo-r8 root=/dev/ram0 init=/linuxrc ramdisc=8192 vga=0x31b splash=silent crypt_root=/dev/hda3
initrd /initramfs-genkernel-x86_64-2.6.20-gentoo-r8

# Edit etc/fstab
/dev/hda1         /boot  ext2  noauto,noatime  1 2
/dev/mapper/root  /      ext3  noatime         0 1
/dev/mapper/swap  none   swap  sw              0 0
/dev/mapper/home  /home  ext3  noatime         0 0

# Check where the swap partition is used
grep /etc/init.d/* swapon
# Edit this file and ask that it be created at boot time
# Note: it is probably cleaner to just edit /etc/conf.d/cryptfs instead
# (when I initially did it, the comments in this file were much more
# confusing than they now are)
cryptsetup -d /dev/urandom create swap /dev/hda2
mkswap /dev/mapper/swap
swapon /dev/mapper/swap

# Edit /etc/conf.d/cryptfs

# Set the root password
# Have the network started at boot time
emerge dhcpd
rc-update add net.eth0 default
# Cronrab, syslog
emerge vixie-cron syslog-ng slocate
# Create a user (-m creates a home directory)
adduser -g users -G lp,wheel,audio,cdrom,portage,cron -m zoonek
passwd zoonek
# Sundries
vi /etc/locale.gen
vi /etc/conf.d/keymaps
vi /etc/rc.conf
# Select the nearest mirrors
emerge mirrorselect
mirrorselect -i    -o >> /etc/make.conf
mirrorselect -i -r -o >> /etc/make.conf

# Reboot

# If/Since it does not work, reboot on the livecd, go in the chroot and
# check the kernel configuration and the grub configuration file
cryptsetup luksOpen /dev/hda3
mount /dev/mapper/root /mnt/gentoo
mount /dev/hda1 /mnt/gentoo/boot
mount -t proc proc /mnt/gentoo/proc
chroot /mnt/gentoo /bin/bash
source /etc/profile
genkernel --menuconfig --luks --no-clean all  # Use --no-clean to keep your
ls -l /boot/                                  # previous choices
vi /boot/grub/grub.conf

# Compile a more complete system...
# Change the profile (it was the default one, not a desktop one)
ln -s /usr/portage/profiles/default-linux/amd64/2007.0/desktop /etc/make.profile
# In /etc/make.conf:
USE="a52 aac alsa ansi avi bzip2 cairo cdr cjk curl dbus djvu doc
     dts dvd dvdr eds emboss encode examples ffmpeg fftw firefox
     flac flash fortran gcj gd gif gmp gnome graphviz  gstreamer
     gtk gkt2 hak immqt jack jack-tmpfs jpeg jpeg2k kde mad matroska
     mikmod mp3 mp4 mpeg musepack nls nvidia odbc ogg opengl pdf
     pdflib perl png postgres python qt3 qt4 quicktime real ruby
     sdl sox speex spell sqlite3 svg tcltk tetex tga theora tiff
     truetype unicode vcd visualization vorbis wavpack win32codecs
     X x264 xanim xml xv xvid usb"
INPUT_DEVICES="evdev keyboard mouse wacom"
# This *will* take ages...
# If it does not work, you usually have an explicit error message, that asks
# you to recompile something else with different USE flags. I use the 
# --noreplace --newuse --oneshot options.
# In case you really want to recompile everything: emerge --emptytree world
emerge --update --newuse --deep system
emerge --update --newuse --deep world
emerge xorg-x11 kde gnome
emerge freefonts sharefonts corefonts artwiz-fonts dejavu terminus-font ttf-bitstream-vera unifont freetype
echo 'media-fonts/texcm-ttf' >> /etc/portage/package.keywords
emerge texcm-ttf
emerge amarok
emerge sweep
emerge mplayer mkvtoolnix mpeg4ip subtitleripper transcode vlc gpac
echo 'app-office/openoffice' >> /etc/portage/package.keywords
echo 'sys-libs/db' >> /etc/portage/package.keywords
emerge openoffice
emerge psutils scribus inkscape amarok gimp evince gqview
echo 'media-gfx/blender' >> /etc/portage/package.keywords
emerge blender
emerge cksfv lha p7zip unace unrar unshield cabextract
emerge g-cpan gentoolkit layman sudo strace netcat nmap traceroute ntp telnet-bsd ncftp htop lsof xev zsh
emerge cvs subversion
emerge jedit kxmleditor mlview vim xemacs kate

# X11, NVidia
emerge xorg-x11 twm  # If you have time, try "emerge kde gnome xfce"
                     # If you want a decent desktop without having to
                     # wait for a couple of days, try "emerge xfce"
emerge nvidia-drivers
eselect opengl set nvidia
# Edit /etc/X11/X11.conf
# If you forget something, you end up with a weird behaviour,
# such as mplayer being unable to go fullscreen because of a
# missing module.
# You might also want to try:
#   xorgcfg -textmode
#   xorgconfig
#   mkxf86config   # No questions to answer...
Section "Files"
  # I am not sure this should be empty
Section "Module"
  Load "freetype"
  Load  "extmod"
  Load  "glx"
  Load  "dbe"
  Load  "record"
  Load  "xtrap"
  Load  "type1"
  Load  "speedo"
Section "InputDevice"
  Identifier  "Mouse0"
  Driver      "mouse"
  Option      "Protocol" "Auto"
  Option      "Emulate3Buttons"
  Option      "Device" "/dev/input/mice"
Section "InputDevice"
  Identifier  "Keyboard0"
  Driver      "kbd"
  Option      "XkbModel" "pc101"
  Option      "XkbLayout" "gb"
# See
# if you want to configure udev properly to have reliable 
# device names instead of /dev/input/event3 (which might become
# event2 or event4 after a reboot...)
Section "InputDevice"
  Driver        "wacom"
  Identifier    "cursor"
  Option        "Device"        "/dev/input/event3"
  Option        "Type"          "cursor"
  Option        "Mode"          "relative"
  Option        "USB"           "on"
  Option        "Speed"         "1.0"
Section "InputDevice"
  Driver         "wacom"
  Identifier     "stylus"
  Option         "Device"        "/dev/input/event3"
  Option         "Type"          "stylus"
  Option         "Mode"          "absolute"
  Option         "USB"           "on"
Section "InputDevice"
  Driver        "wacom"
  Identifier    "eraser"
  Option        "Device"        "/dev/input/event3"
  Option        "Type"          "eraser"
  Option        "Mode"          "absolute"
  Option        "USB"           "on"
Section "Monitor"
  Identifier   "Monitor0"
  HorizSync    80        # 31.5 - 64.3
  VertRefresh  75        # 50.0 - 70.0
Section "Device"
  Identifier  "Card0"
  Driver "nvidia"
Section "Screen"
  Identifier "Screen0"
  Device     "Card0"
  Monitor    "Monitor0"
  DefaultDepth     24
  SubSection "Display"
    Viewport   0 0
    Depth     24
    Modes    "1680x1050"
Section "ServerLayout"
  Identifier  "simple layout"
  Screen      "Screen0"
  InputDevice "Mouse0"    "CorePointer"
  InputDevice "Keyboard0" "CoreKeyboard"
  InputDevice "stylus"    "SendCoreEvents"
  InputDevice "cursor"    "SendCoreEvents"
  InputDevice "eraser"    "SendCoreEvents"

# Edit /etc/conf.d/xdm if needed

# To check that the tablet is working, use wacdump.
# To check that X11 receives the right information from it, use xidump.
# In Gimp, the tablet may not be activated by default (you can use it,
# but only as a mouse, without pressure sensitivity or any distinction
# between stylus and eraser:
#   File --> Preferences --> Input Devices --> Configure extended input devices

# Alsa
# (There is no sound, but it started one day before I started to reinstall
# everything so I suspect a hardware problem...)
# (It was a broken fan.)
# Make sure ALSA is activated in the kernel and not as a separate package
gzip -dc /proc/config.gz | less -i  # Look for "sound"
emerge alsa-utils
alsaconf  # It claims I have no sound card...
lspci     # Still nothing...
# For more professional and up-to-date audio applications...
layman -fa pro-audio

# Unicode
echo 'LANG="en_GB.UTF-8"' > /etc/env.d/02locale
# Japanese: see
# Fonts
emerge media-fonts/kochi-substitute media-fonts/ja-ipafonts media-fonts/arphicfonts media-fonts/baekmuk-fonts
emerge cabextract
wget  # No longer works -- I have an old copy of it
cabextract Aruniupd.exe
cp *.TTF /usr/share/fonts/
fc-cache -fv
# Input method
grep -E 'cjk|nls|immqt' /etc/make.conf # If everything has already been compiled, prefer immqt-bc instead of immqt
emerge scim-qtimm
# For Japanese:
emerge scim-anthy
# For Chinese:             app-i18n/scim-tables app-i18n/scim-pinyin
# For Korean:              app-i18n/scim-hangul
# For 30+ other langauges: app-i18n/scim-m17n

# As a normal user
echo '
  export XMODIFIERS=@im=SCIM
  export GTK_IM_MODULE=scim
  export QT_IM_MODULE=scim
  scim &
' > ~/.xsession

# Dictionary:
# - There is already a dictionary (kiten) installed with kde
# - The corresponding Gnome dictionary (gjiten) is trickier to install

# Perl
# Make sure you have an overlay directory, otherwise g-cpan yields unhelpful error messages ("uninitialized value"...)
echo 'PORTDIR_OVERLAY="/usr/local/portage"' >> /etc/make.conf
mkdir /usr/local/portage
# Install the modules you need, when you need them (I use those for Blosxom)
g-cpan --install File::Cat
g-cpan --install Mime::Types

# R
tar zxvf R-2.6.0.tar.gz
cd R-2.6.0
make -j 3
make install
wget -r -l 1 -np -nc
for i in*tar.gz; do R CMD INSTALL $i; done
mkdir -p /usr/share/texmf/tex/generic/R
cp -r /usr/local/lib64/R/share/texmf/* /usr/share/texmf/tex/generic/R
# Other mathematical software
grep -E 'gd|ansi|tetex' /etc/make.conf
emerge --newuse --deep world
echo 'sci-mathematics/maxima' >> /etc/portage/package.keywords
emerge maxima
emerge yacas # Does not work
echo 'sci-mathematics/scilab' >> /etc/portage/package.keywords
emerge scilab # Does not work
emerge octave

echo 'dev-util/darcs' >> /etc/portage/package.keywords
emerge ghc hugs98 darcs

# Eclipse
emerge eclipse-sdk
# To install plugings (e.g., the CDT (C/C++ development toolkit)), launch Eclipse
# and go to Help --> Software updates.
# This will install the plugins for *one* user and you will have to install
# the dependencies by hand... Nightmare.
emerge commons-codec

# C# (I do not program in C#, but...)
echo 'dev-util/monodevelop' >> /etc/portage/package.keywords
echo 'dev-dotnet/gtksourceview-sharp' >> /etc/portage/package.keywords
emerge monodevelop

# I sometimes have APE (Monkey audio) files but the correspondig software
# is distributed under a vague licence that prohibits its inclusion in portage.
# Find mac-3.99-u4-b5.tar.gz somewhere (the sourceforge page disappeared)
tar zxvf mac-3.99-u4-b5.tar.gz
cd mac-3.99-u4-b5
  # To extract the ID3 tags
  cd src/Examples/Analyze/Sample1/
  tar zxvf apeinfo10_source.tgz
  cd -
  # Because of an incomplete Makefile, apeinfo has to be static...
  ./configure --disable-shared --enable-static --prefix=/usr/local 
#./configure --prefix=/usr/local
make install
cp  src/Examples/Analyze/Sample1/apeinfo /usr/local/bin/
# Basic conversion (individual files, loses ID3 tags)
#   mac 1.ape 1.wav -d
#   flac 1.wav
# To convert CDImage.ape and CDImage.cue to several *flac files, keeping the ID3 tags
#   konqueror &
apecue2flac () {
  # No spaces allowed in "$2" (the CUE file)
  cuebreakpoints $2 | shnsplit -o flac "$1"
  sh /usr/share/doc/cuetools-1.3.1/extras/ $2 split-track*.flac
emerge cuetools shntool
# To convert a single *.ape file to a *.flac while keeping the ID3 tags:
#   konqueror &
# 1.ape
cd /usr/local/bin/
wget -O /usr/local/bin/
chmod +x
perl -p -i -e 's#/usr/bin/sed#/bin/sed#'
perl -p -i -e 's#/usr/bin/mac#/usr/local/bin/mac#'

# After recompiling the kernel, be sure to update the NVidia drivers
emerge nvidia-drivers  # NEEDED
emerge alsa-utils      # Probably not needed

# When updating the system, pay attention to the files that you have modified:
# - /etc/conf.d/xdm         # DISPLAYMANAGER=kdm
# - /etc/conf.d/clock       # TIMEZONE="Europe/London"
# - /etc/conf.d/cryptfs
# - /etc/init.d/localmount

posted at: 02:28 | path: /Linux | permanent link to this entry