Install Gentoo on a Thinkpad T400

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Summary

This article explains how to install and configure Gentoo Linux on a Thinkpad T400 using an Ubuntu 8.10 LiveCD. We are using the Ubuntu LiveCD because the Thinkpad T400 features a sata CD/DVD drive which is not recognized by the Gentoo minimal install CD. By the end of this article, we'll cover all critical details for getting Gentoo up and running.

Before Installation

Before you can start Ubuntu from CD or USB you have to change two BIOS settings:

  • Change to Internal or ATI Graphics with Config --> Display --> Graphics Device --> [Integrated graphics] or [Discrete Graphics]
  • Disable OS Detection for Switchable Graphics. Otherwise it will mysteriously switch back to Switchable Graphics.

Procedures

Boot into the Ubuntu LiveCD and ensure you have internet connectivity.

At this point we want to switch to root and configure our Gentoo partitions. This will be done within the CLI via gterm. Since we're in the Ubuntu Gnome interface, we can Press Ctrl+T to open a terminal window then proceed with the following commands.

Set the Ubuntu environments root password, this password is only temporary while in the LiveCD: 

$sudo passwd root

Switch user to root using the password you just created, so that we gain the admin rights necessary: 

$su root

Note that the terminal prompt changes from $ to # indicating the change in rights to root access. Now thru this terminal we are ready to continue on with setting up Gentoo following the handbook at Chapter4, "Preparing the Disks".

Theres a slight difference when you get to chapter 6 of the Handbook, when it comes time to mount the proc and dev filesystems the commands will be as follows since we're within a LiveCD environment: 

#mount -o bind /proc /mnt/gentoo/proc/
#mount -o bind /dev /mnt/gentoo/dev/

You will need to decide which version of the kernel you want to use, and which version of GCC you will run. You could choose gentoo-sources-2.6.27-r5, because that kernel version enabled the Intel WifiLink 5300 AGN in the Thinkpad T400. You could also choose GCC4.3, because that version of GCC supports "-march=core2", which provides optimizations specific to Core2Duo processors. Refer to the Gentoo GCC Upgrade Guide for comprehensive instructions on upgrading GCC, as well as the notes below for configuring /etc/make.conf using the proper CFLAGS.

Proceed with the Gentoo Handbook instructions once you've made your choices. To help you in getting up and running the following are general example configuration files which work well with the T400, though they are not fully optimized.

Note that the "-march=core2" CFLAGS setting can only be set after upgrading to GCC4.3, and prior to that the recommended safe setting for GCC4.1 is "-march=nocona" - that is what you will initially use for your CFLAGS setting. Once you have upgraded to GCC4.3, you will want to update the CFLAGS setting and recompile all packages on the system using "emerge -eav world". It's best to do this before installing other software packages - this will recompile your entire Gentoo system from source. Refer to the Gentoo GCC Upgrade Guide for comprehensive instructions on upgrading GCC. This is an example /etc/make.conf: 

#Example /etc/make.conf for T400 on GCC4.3
CFLAGS="-O2 -march=core2 -pipe -fomit-frame-pointer"
CXXFLAGS="${CFLAGS}" CHOST="i686-pc-linux-gnu"
MAKEOPTS="-j3"
GENTOO_MIRRORS="http://gentoo.chem.wisc.edu/gentoo/" SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage"
ACCEPT_KEYWORDS="~x86" USE="a52 aac acpi alsa -arts bash-completion bittorrent blender-game bzip2 c++ cdr
dbus dhcp dirac divx dri dvd dvdr dvdread encode ffmpeg fuse gimp gnome gtk hal irc jingle jpeg -kde lame
mikmod mp2 mp3 mp4 mp4live mpeg mpeg2 mplayer nsplugin ogg ogm opengl png pstricks -qt3 -qt4 R samba scim
sdl sid sse3 unicode vcd wma wmf wmp X xcb xine xorg"
VIDEO_CARDS="intel vesa radeon radeonhd"
INPUT_DEVICES="keyboard mouse"
LINGUAS="en"

And if you want a 64 bit operating system:

CFLAGS="-march=core2 -O2 -pipe -fomit-frame-pointer" CXXFLAGS="${CFLAGS}" MAKEOPTS="-j3" FEATURES="parallel-fetch" CHOST="x86_64-pc-linux-gnu" USE="X a52 aac acpi alsa avahi ao apm audiofile bash-completion bluetooth cairo cdda cddb cdparanoia cdr cpudetection css cups dbus dga djvu dri dts dv dvd dvdr encode exif fam fbcon ffmpeg firefox flac fltk fontconfig freetype ftp gd gif gimp gnome gnuplot gphoto2 gps gsl gstreamer gtk gtk2 hal icq ieee1394 ipv6 jack javascript java6 jbig jpeg kerberos -kde lame laptop latex lcms ldap libnotify lm_sensors mad matroska matrox mmx mozilla mp3 mp4 mpeg mplayer msn mtp musepack networkmanager ogg openal openexr opengl openmp oscar pcmcia pcntl pdf -pic png portaudio python -qt quicktime radius readline samba scanner shorten smp sndfile snmp sockets spell sqlite sse sse2 sse3 sse4 ssl svg svga symlink syslog theora threads tiff truetype unicode usb v4l v4l2 vcd vorbis wavepack wifi win32codecs x264 xface xine xml xosd xpm xv zeroconf" LANG="en_US.utf8" LINGUAS="en" VIDEO_CARDS="intel radeon radeonhd" INPUT_DEVICES="synaptics evdev"

This is an edited example of "/usr/src/linux/.config" for gentoo-sources-2.6.27-r5 on the Thinkpad T400. This shows all items enabled in the kernel; all commented lines have been removed. Wireless and discrete graphics acceleration on the T400 work with this config, however it has not been optimized. Thus its a good baseline config to get up and running, but there is a lot of room for improvement. 

CONFIG_X86_32=y CONFIG_X86=y CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig" 
CONFIG_GENERIC_TIME=y CONFIG_GENERIC_CMOS_UPDATE=y CONFIG_CLOCKSOURCE_WATCHDOG=y 
CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y CONFIG_LOCKDEP_SUPPORT=y 
CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y CONFIG_FAST_CMPXCHG_LOCAL=y 
CONFIG_MMU=y CONFIG_ZONE_DMA=y CONFIG_GENERIC_ISA_DMA=y CONFIG_GENERIC_IOMAP=y CONFIG_GENERIC_BUG=y 
CONFIG_GENERIC_HWEIGHT=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y 
CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y CONFIG_HAVE_SETUP_PER_CPU_AREA=y CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_ARCH_SUPPORTS_AOUT=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_PENDING_IRQ=y CONFIG_X86_SMP=y CONFIG_X86_32_SMP=y CONFIG_X86_HT=y
CONFIG_X86_BIOS_REBOOT=y CONFIG_X86_TRAMPOLINE=y CONFIG_KTIME_SCALAR=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" CONFIG_EXPERIMENTAL=y CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32 CONFIG_LOCALVERSION="" CONFIG_SWAP=y CONFIG_SYSVIPC=y CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y CONFIG_BSD_PROCESS_ACCT=y CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y CONFIG_AUDIT=y CONFIG_AUDITSYSCALL=y CONFIG_AUDIT_TREE=y
CONFIG_LOG_BUF_SHIFT=17 CONFIG_CGROUPS=y CONFIG_CGROUP_NS=y CONFIG_CPUSETS=y
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y CONFIG_GROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y CONFIG_CGROUP_SCHED=y
CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y CONFIG_PROC_PID_CPUSET=y CONFIG_RELAY=y
CONFIG_NAMESPACES=y CONFIG_UTS_NS=y CONFIG_IPC_NS=y CONFIG_USER_NS=y CONFIG_PID_NS=y
CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SYSCTL=y
CONFIG_UID16=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_EXTRA_PASS=y CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_ANON_INODES=y CONFIG_EPOLL=y
CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y CONFIG_SLUB=y CONFIG_PROFILING=y CONFIG_MARKERS=y CONFIG_HAVE_OPROFILE=y
CONFIG_KPROBES=y CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y CONFIG_KRETPROBES=y CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_USE_GENERIC_SMP_HELPERS=y CONFIG_PROC_PAGE_MONITOR=y
CONFIG_HAVE_GENERIC_DMA_COHERENT=y CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_KMOD=y CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y
CONFIG_BLK_DEV_IO_TRACE=y CONFIG_BLK_DEV_BSG=y CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y CONFIG_DEFAULT_CFQ=y CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_CLASSIC_RCU=y CONFIG_TICK_ONESHOT=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y CONFIG_SMP=y CONFIG_X86_FIND_SMP_CONFIG=y CONFIG_X86_MPPARSE=y
CONFIG_X86_PC=y CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_MCORE2=y CONFIG_X86_GENERIC=y CONFIG_X86_CPU=y
CONFIG_X86_CMPXCHG=y CONFIG_X86_L1_CACHE_SHIFT=7 CONFIG_X86_XADD=y CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y CONFIG_X86_TSC=y CONFIG_X86_MINIMUM_CPU_FAMILY=4 CONFIG_X86_DEBUGCTLMSR=y
CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y CONFIG_DMI=y CONFIG_NR_CPUS=4 CONFIG_SCHED_MC=y
CONFIG_PREEMPT_VOLUNTARY=y CONFIG_X86_LOCAL_APIC=y CONFIG_X86_IO_APIC=y CONFIG_VM86=y CONFIG_X86_REBOOTFIXUPS=y
CONFIG_X86_MSR=y CONFIG_X86_CPUID=y CONFIG_HIGHMEM4G=y CONFIG_PAGE_OFFSET=0xC0000000 CONFIG_HIGHMEM=y
CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPARSEMEM_STATIC=y CONFIG_PAGEFLAGS_EXTENDED=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y
CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y CONFIG_HIGHPTE=y CONFIG_X86_RESERVE_LOW_64K=y
CONFIG_MTRR=y CONFIG_X86_PAT=y CONFIG_EFI=y CONFIG_SECCOMP=y CONFIG_HZ_1000=y CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y CONFIG_KEXEC=y CONFIG_CRASH_DUMP=y CONFIG_PHYSICAL_START=0x1000000 CONFIG_RELOCATABLE=y
CONFIG_PHYSICAL_ALIGN=0x200000 CONFIG_HOTPLUG_CPU=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_PM=y
CONFIG_PM_DEBUG=y CONFIG_CAN_PM_TRACE=y CONFIG_PM_TRACE=y CONFIG_PM_TRACE_RTC=y CONFIG_PM_SLEEP_SMP=y
CONFIG_PM_SLEEP=y CONFIG_SUSPEND=y CONFIG_SUSPEND_FREEZER=y CONFIG_HIBERNATION=y CONFIG_PM_STD_PARTITION=""
CONFIG_ACPI=y CONFIG_ACPI_SLEEP=y CONFIG_ACPI_PROCFS=y CONFIG_ACPI_PROCFS_POWER=y CONFIG_ACPI_SYSFS_POWER=y
CONFIG_ACPI_PROC_EVENT=y CONFIG_ACPI_AC=y CONFIG_ACPI_BATTERY=y CONFIG_ACPI_BUTTON=y CONFIG_ACPI_FAN=y
CONFIG_ACPI_DOCK=y CONFIG_ACPI_PROCESSOR=y CONFIG_ACPI_HOTPLUG_CPU=y CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_BLACKLIST_YEAR=0 CONFIG_ACPI_EC=y CONFIG_ACPI_POWER=y CONFIG_ACPI_SYSTEM=y CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_TABLE=y CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_X86_ACPI_CPUFREQ=y CONFIG_CPU_IDLE=y CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y CONFIG_PCI=y CONFIG_PCI_GOANY=y CONFIG_PCI_BIOS=y CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y CONFIG_PCI_DOMAINS=y CONFIG_PCIEPORTBUS=y CONFIG_PCIEAER=y CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y CONFIG_HT_IRQ=y CONFIG_ISA_DMA_API=y CONFIG_K8_NB=y CONFIG_PCCARD=y CONFIG_PCMCIA=y CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_PCMCIA_IOCTL=y CONFIG_CARDBUS=y CONFIG_YENTA=y CONFIG_YENTA_O2=y CONFIG_YENTA_RICOH=y CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y CONFIG_YENTA_TOSHIBA=y CONFIG_PCCARD_NONSTATIC=y CONFIG_HOTPLUG_PCI=y CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_PACKET_MMAP=y CONFIG_UNIX=y CONFIG_XFRM=y CONFIG_XFRM_USER=y
CONFIG_INET=y CONFIG_IP_MULTICAST=y CONFIG_IP_ADVANCED_ROUTER=y CONFIG_ASK_IP_FIB_HASH=y CONFIG_IP_FIB_HASH=y
CONFIG_IP_MULTIPLE_TABLES=y CONFIG_IP_ROUTE_MULTIPATH=y CONFIG_IP_ROUTE_VERBOSE=y CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y CONFIG_IP_PNP_RARP=y CONFIG_IP_MROUTE=y CONFIG_IP_PIMSM_V1=y CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y CONFIG_INET_TUNNEL=y CONFIG_INET_LRO=y CONFIG_TCP_CONG_ADVANCED=y CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_CUBIC=y CONFIG_DEFAULT_TCP_CONG="cubic" CONFIG_TCP_MD5SIG=y CONFIG_IPV6=y CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y CONFIG_INET6_XFRM_MODE_TRANSPORT=y CONFIG_INET6_XFRM_MODE_TUNNEL=y CONFIG_INET6_XFRM_MODE_BEET=y
CONFIG_IPV6_SIT=y CONFIG_IPV6_NDISC_NODETYPE=y CONFIG_NETLABEL=y CONFIG_NETWORK_SECMARK=y CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK=y CONFIG_NETFILTER_NETLINK_LOG=y CONFIG_NF_CONNTRACK=y CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_FTP=y CONFIG_NF_CONNTRACK_IRC=y CONFIG_NF_CONNTRACK_SIP=y CONFIG_NF_CT_NETLINK=y
CONFIG_NETFILTER_XTABLES=y CONFIG_NETFILTER_XT_TARGET_MARK=y CONFIG_NETFILTER_XT_TARGET_NFLOG=y CONFIG_NETFILTER_XT_TARGET_SECMARK=y
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y CONFIG_NETFILTER_XT_TARGET_TCPMSS=y CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
CONFIG_NETFILTER_XT_MATCH_MARK=y CONFIG_NETFILTER_XT_MATCH_POLICY=y CONFIG_NETFILTER_XT_MATCH_STATE=y CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_NF_CONNTRACK_PROC_COMPAT=y CONFIG_IP_NF_IPTABLES=y CONFIG_IP_NF_FILTER=y CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_TARGET_LOG=y CONFIG_IP_NF_TARGET_ULOG=y CONFIG_NF_NAT=y CONFIG_NF_NAT_NEEDED=y CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_NF_NAT_FTP=y CONFIG_NF_NAT_IRC=y CONFIG_NF_NAT_SIP=y CONFIG_IP_NF_MANGLE=y CONFIG_NF_CONNTRACK_IPV6=y
CONFIG_IP6_NF_IPTABLES=y CONFIG_IP6_NF_MATCH_IPV6HEADER=y CONFIG_IP6_NF_FILTER=y CONFIG_IP6_NF_TARGET_LOG=y
CONFIG_IP6_NF_TARGET_REJECT=y CONFIG_IP6_NF_MANGLE=y CONFIG_STP=y CONFIG_BRIDGE=y CONFIG_LLC=y CONFIG_NET_SCHED=y
CONFIG_NET_CLS=y CONFIG_NET_EMATCH=y CONFIG_NET_EMATCH_STACK=32 CONFIG_NET_CLS_ACT=y CONFIG_NET_SCH_FIFO=y
CONFIG_HAMRADIO=y CONFIG_FIB_RULES=y CONFIG_CFG80211=y CONFIG_NL80211=y CONFIG_WIRELESS_EXT=y CONFIG_WIRELESS_EXT_SYSFS=y
CONFIG_MAC80211=y CONFIG_MAC80211_RC_PID=y CONFIG_MAC80211_RC_DEFAULT_PID=y CONFIG_MAC80211_RC_DEFAULT="pid" CONFIG_MAC80211_LEDS=y
CONFIG_RFKILL=y CONFIG_RFKILL_LEDS=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y CONFIG_FIRMWARE_IN_KERNEL=y CONFIG_EXTRA_FIRMWARE="" CONFIG_DEBUG_DEVRES=y
CONFIG_CONNECTOR=y CONFIG_PROC_EVENTS=y CONFIG_PNP=y CONFIG_PNPACPI=y CONFIG_BLK_DEV=y CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=16384 CONFIG_MISC_DEVICES=y CONFIG_HAVE_IDE=y CONFIG_SCSI=y CONFIG_SCSI_DMA=y
CONFIG_SCSI_PROC_FS=y CONFIG_BLK_DEV_SD=y CONFIG_BLK_DEV_SR=y CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=y CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_ISCSI_ATTRS=y CONFIG_ATA=y CONFIG_ATA_ACPI=y CONFIG_SATA_PMP=y
CONFIG_SATA_AHCI=y CONFIG_ATA_SFF=y CONFIG_ATA_PIIX=y CONFIG_PATA_AMD=y CONFIG_ATA_GENERIC=y CONFIG_PATA_MPIIX=y CONFIG_PATA_OLDPIIX=y
CONFIG_PATA_SCH=y CONFIG_MD=y CONFIG_BLK_DEV_MD=y CONFIG_BLK_DEV_DM=y CONFIG_DM_MIRROR=y CONFIG_DM_ZERO=y CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y CONFIG_NETDEVICES=y CONFIG_TUN=y CONFIG_PHYLIB=y CONFIG_NET_ETHERNET=y CONFIG_MII=y CONFIG_NET_VENDOR_3COM=y
CONFIG_NET_TULIP=y CONFIG_NET_PCI=y CONFIG_FORCEDETH=y CONFIG_E100=y CONFIG_NE2K_PCI=y CONFIG_8139TOO=y CONFIG_NETDEV_1000=y
CONFIG_E1000=y CONFIG_E1000E=y CONFIG_R8169=y CONFIG_SKY2=y CONFIG_TIGON3=y CONFIG_BNX2=y CONFIG_NETDEV_10000=y CONFIG_TR=y
CONFIG_WLAN_80211=y CONFIG_IWLWIFI=y CONFIG_IWLCORE=y CONFIG_IWLWIFI_LEDS=y CONFIG_IWLWIFI_RFKILL=y CONFIG_IWLWIFI_DEBUG=y
CONFIG_IWLAGN=y CONFIG_IWLAGN_SPECTRUM_MEASUREMENT=y CONFIG_IWLAGN_LEDS=y CONFIG_IWL5000=y CONFIG_NET_PCMCIA=y CONFIG_FDDI=y
CONFIG_NETCONSOLE=y CONFIG_NETPOLL=y CONFIG_NET_POLL_CONTROLLER=y CONFIG_INPUT=y CONFIG_INPUT_FF_MEMLESS=y CONFIG_INPUT_POLLDEV=y
CONFIG_INPUT_MOUSEDEV=y CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y CONFIG_MOUSE_PS2_ALPS=y CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y CONFIG_MOUSE_PS2_LIFEBOOK=y CONFIG_MOUSE_PS2_TRACKPOINT=y CONFIG_INPUT_JOYSTICK=y CONFIG_INPUT_TABLET=y
CONFIG_INPUT_TOUCHSCREEN=y CONFIG_INPUT_MISC=y CONFIG_SERIO=y CONFIG_SERIO_I8042=y CONFIG_SERIO_SERPORT=y CONFIG_SERIO_LIBPS2=y
CONFIG_VT=y CONFIG_CONSOLE_TRANSLATIONS=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y CONFIG_VT_HW_CONSOLE_BINDING=y CONFIG_DEVKMEM=y
CONFIG_SERIAL_NONSTANDARD=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_FIX_EARLYCON_MEM=y CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_PNP=y CONFIG_SERIAL_8250_NR_UARTS=32 CONFIG_SERIAL_8250_RUNTIME_UARTS=4 CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y CONFIG_SERIAL_8250_SHARE_IRQ=y CONFIG_SERIAL_8250_DETECT_IRQ=y CONFIG_SERIAL_8250_RSA=y CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y CONFIG_UNIX98_PTYS=y CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_INTEL=y CONFIG_HW_RANDOM_AMD=y CONFIG_HW_RANDOM_GEODE=y
CONFIG_HW_RANDOM_VIA=y CONFIG_NVRAM=y CONFIG_HPET=y CONFIG_DEVPORT=y CONFIG_I2C=y CONFIG_I2C_BOARDINFO=y CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_I801=y CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_POWER_SUPPLY=y CONFIG_THERMAL=y CONFIG_WATCHDOG=y CONFIG_SSB_POSSIBLE=y
CONFIG_DAB=y CONFIG_AGP=y CONFIG_AGP_AMD64=y CONFIG_AGP_INTEL=y CONFIG_DRM=y CONFIG_DRM_I915=y CONFIG_FB=y CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y CONFIG_FB_MODE_HELPERS=y CONFIG_FB_TILEBLITTING=y CONFIG_FB_EFI=y
CONFIG_BACKLIGHT_LCD_SUPPORT=y CONFIG_BACKLIGHT_CLASS_DEVICE=y CONFIG_VGA_CONSOLE=y CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64 CONFIG_VIDEO_SELECT=y CONFIG_DUMMY_CONSOLE=y CONFIG_LOGO=y CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_SOUND=y CONFIG_SND=y CONFIG_SND_TIMER=y CONFIG_SND_PCM=y CONFIG_SND_HWDEP=y CONFIG_SND_SEQUENCER=y CONFIG_SND_SEQ_DUMMY=y
CONFIG_SND_OSSEMUL=y CONFIG_SND_MIXER_OSS=y CONFIG_SND_PCM_OSS=y CONFIG_SND_PCM_OSS_PLUGINS=y CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_DYNAMIC_MINORS=y CONFIG_SND_SUPPORT_OLD_API=y CONFIG_SND_VERBOSE_PROCFS=y CONFIG_SND_VMASTER=y CONFIG_SND_DRIVERS=y
CONFIG_SND_PCI=y CONFIG_SND_HDA_INTEL=y CONFIG_SND_HDA_HWDEP=y CONFIG_SND_HDA_CODEC_REALTEK=y CONFIG_SND_HDA_CODEC_ANALOG=y
CONFIG_SND_HDA_CODEC_SIGMATEL=y CONFIG_SND_HDA_CODEC_VIA=y CONFIG_SND_HDA_CODEC_ATIHDMI=y CONFIG_SND_HDA_CODEC_CONEXANT=y
CONFIG_SND_HDA_CODEC_CMEDIA=y CONFIG_SND_HDA_CODEC_SI3054=y CONFIG_SND_HDA_GENERIC=y CONFIG_SND_USB=y CONFIG_SND_PCMCIA=y
CONFIG_HID_SUPPORT=y CONFIG_HID=y CONFIG_HID_DEBUG=y CONFIG_HIDRAW=y CONFIG_USB_HID=y CONFIG_USB_HIDINPUT_POWERBOOK=y
CONFIG_HID_FF=y CONFIG_HID_PID=y CONFIG_LOGITECH_FF=y CONFIG_PANTHERLORD_FF=y CONFIG_THRUSTMASTER_FF=y CONFIG_ZEROPLUS_FF=y
CONFIG_USB_HIDDEV=y CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y CONFIG_USB_DEBUG=y CONFIG_USB_ANNOUNCE_NEW_DEVICES=y CONFIG_USB_DEVICEFS=y CONFIG_USB_SUSPEND=y CONFIG_USB_MON=y
CONFIG_USB_EHCI_HCD=y CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_UHCI_HCD=y CONFIG_USB_PRINTER=y
CONFIG_USB_STORAGE=y CONFIG_USB_LIBUSUAL=y CONFIG_NEW_LEDS=y CONFIG_LEDS_CLASS=y CONFIG_LEDS_TRIGGERS=y CONFIG_EDAC=y
CONFIG_RTC_LIB=y CONFIG_RTC_CLASS=y CONFIG_RTC_INTF_SYSFS=y CONFIG_RTC_INTF_PROC=y CONFIG_RTC_INTF_DEV=y CONFIG_RTC_DRV_CMOS=y
CONFIG_DMADEVICES=y CONFIG_FIRMWARE_MEMMAP=y CONFIG_EFI_VARS=y CONFIG_DMIID=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT2_FS_SECURITY=y CONFIG_EXT3_FS=y CONFIG_EXT3_FS_XATTR=y CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y CONFIG_JBD=y CONFIG_FS_MBCACHE=y CONFIG_FS_POSIX_ACL=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y CONFIG_QUOTA=y CONFIG_QUOTA_NETLINK_INTERFACE=y CONFIG_QFMT_V2=y CONFIG_QUOTACTL=y CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=y CONFIG_GENERIC_ACL=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_ZISOFS=y CONFIG_FAT_FS=y CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y CONFIG_FAT_DEFAULT_CODEPAGE=437 CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" CONFIG_NTFS_FS=y CONFIG_NTFS_DEBUG=y
CONFIG_NTFS_RW=y CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_PROC_VMCORE=y CONFIG_PROC_SYSCTL=y CONFIG_SYSFS=y CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y CONFIG_HUGETLBFS=y CONFIG_HUGETLB_PAGE=y CONFIG_NETWORK_FILESYSTEMS=y CONFIG_NFS_FS=y CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y CONFIG_NFS_V4=y CONFIG_ROOT_NFS=y CONFIG_LOCKD=y CONFIG_LOCKD_V4=y CONFIG_NFS_ACL_SUPPORT=y CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y CONFIG_SUNRPC_GSS=y CONFIG_RPCSEC_GSS_KRB5=y CONFIG_PARTITION_ADVANCED=y CONFIG_OSF_PARTITION=y CONFIG_AMIGA_PARTITION=y
CONFIG_MAC_PARTITION=y CONFIG_MSDOS_PARTITION=y CONFIG_BSD_DISKLABEL=y CONFIG_MINIX_SUBPARTITION=y CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y CONFIG_SGI_PARTITION=y CONFIG_SUN_PARTITION=y CONFIG_KARMA_PARTITION=y CONFIG_EFI_PARTITION=y CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8" CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_ASCII=y CONFIG_NLS_ISO8859_1=y CONFIG_NLS_UTF8=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_PRINTK_TIME=y CONFIG_ENABLE_WARN_DEPRECATED=y CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048 CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_FS=y CONFIG_DEBUG_KERNEL=y CONFIG_SCHEDSTATS=y CONFIG_TIMER_STATS=y
CONFIG_DEBUG_BUGVERBOSE=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_FRAME_POINTER=y CONFIG_SYSCTL_SYSCALL_CHECK=y CONFIG_HAVE_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_PROVIDE_OHCI1394_DMA_INIT=y CONFIG_HAVE_ARCH_KGDB=y CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y CONFIG_DEBUG_STACKOVERFLOW=y CONFIG_DEBUG_STACK_USAGE=y CONFIG_DEBUG_RODATA=y CONFIG_DEBUG_NX_TEST=m
CONFIG_DOUBLEFAULT=y CONFIG_IO_DELAY_TYPE_0X80=0 CONFIG_IO_DELAY_TYPE_0XED=1 CONFIG_IO_DELAY_TYPE_UDELAY=2 CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y CONFIG_DEFAULT_IO_DELAY_TYPE=0 CONFIG_DEBUG_BOOT_PARAMS=y CONFIG_KEYS=y CONFIG_KEYS_DEBUG_PROC_KEYS=y
CONFIG_SECURITY=y CONFIG_SECURITY_NETWORK=y CONFIG_SECURITY_FILE_CAPABILITIES=y CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=65536
CONFIG_SECURITY_SELINUX=y CONFIG_SECURITY_SELINUX_BOOTPARAM=y CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1 CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y CONFIG_SECURITY_SELINUX_AVC_STATS=y CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1 CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_AEAD=y CONFIG_CRYPTO_BLKCIPHER=y CONFIG_CRYPTO_HASH=y CONFIG_CRYPTO_MANAGER=y CONFIG_CRYPTO_AUTHENC=y
CONFIG_CRYPTO_CBC=y CONFIG_CRYPTO_ECB=y CONFIG_CRYPTO_HMAC=y CONFIG_CRYPTO_MD5=y CONFIG_CRYPTO_SHA1=y CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_586=y CONFIG_CRYPTO_ARC4=y CONFIG_CRYPTO_DES=y CONFIG_HAVE_KVM=y CONFIG_VIRTUALIZATION=y CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_FIRST_BIT=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_CRC_T10DIF=y CONFIG_CRC32=y CONFIG_AUDIT_GENERIC=y
CONFIG_ZLIB_INFLATE=y CONFIG_PLIST=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y

This is an example xorg.conf which was automatically created by following the instructions for installing X: 

 Section "ServerLayout" 
 Identifier "X.org Configured" 
 Screen 0 "Screen0" 0 0 
 InputDevice "Mouse0" "CorePointer" 
 InputDevice "Keyboard0" "CoreKeyboard" 
 EndSection

 Section "Files"
 FontPath "/usr/share/fonts/misc/"
 FontPath "/usr/share/fonts/TTF/"
 FontPath "/usr/share/fonts/OTF" 
 FontPath "/usr/share/fonts/Type1/" 
 FontPath "/usr/share/fonts/100dpi/" 
 FontPath "/usr/share/fonts/75dpi/" 
 EndSection

 Section "Module" 
 Load "xtrap"
 Load "dri"
 Load "glx"
 Load "dbe"
 Load "extmod"
 Load "GLcore"
 Load "record"
 Load "freetype" 
 EndSection

 Section "InputDevice" 
 Identifier "Keyboard0"
 Option "XkbModel" "thinkpad60"
 Option "XkbLayout" "dvorak"
 Driver "kbd" 
 EndSection

 Section "InputDevice" 
 Identifier "Mouse0"
 Driver "mouse"
 Option "Protocol" "auto"
 Option "Device" "/dev/input/mice"
 Option "ZaxisMapping" "4 5 6 7"
 EndSection 

 Section "Monitor"
 Identifier "Monitor0"
 VendorName "Monitor Vendor"
 ModelName "Monitor Model"
 EndSection 

 Section "Device"
 #Intel Identifier "Card0" 
 Driver "vesa" 
 VendorName "Intel Corporation" 
 BoardName "Unknown Board" 
 BusID "PCI:0:2:0"
 #AMD ATI Radeon
 Driver "radeonhd"  
 BusID "PCI:1:0:0"
 VendorName "ATI Technologies Inc"
 BoardName "Unknown Board"
 EndSection 

 Section "Screen"
 Identifier "Screen0"
 Device "Card0"
 Monitor "Monitor0"

 SubSection "Display"
 Viewport 0 0
 Depth 1
 EndSubSection 

 SubSection "Display" 
 ViewPort 0 0
 Depth 24 
 EndSubSection
EndSection 

 Section "dri"
 Mode 0666
 EndSection

The information above combined with the Gentoo handbook should be enough to get the T400 running Gentoo.T400

Retrieved from "https://www.thinkwiki.org/w/index.php?title=Install_Gentoo_on_a_Thinkpad_T400&oldid=49131"