Linux

U-Bootで使える初代玄箱（無印）の2.6.25.20Linuxカーネルを作成する。
まずは、コンパイルに必要なプログラムをインストール。

KURO-BOX:/usr/src# aptitude install patch
KURO-BOX:/usr/src# aptitude install libncurses-dev
KURO-BOX:/usr/src# aptitude install bzip2
KURO-BOX:/usr/src# aptitude install module-init-tools

次に、ソースのダウンロードして、解凍する。

KURO-BOX:/usr/src# wget http://www.genbako.com/kurobox-sources-2.6.25.patch
KURO-BOX:/usr/src# wget http://www.genbako.com/kurobox-section-mismatch2625.patch
KURO-BOX:/usr/src# wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.25.20.tar.bz2
KURO-BOX:/usr/src# tar -jxpvf linux-2.6.25.20.tar.bz2

次に、パッチを当てる。

KURO-BOX:/usr/src# cd linux-2.6.25.20
KURO-BOX:/usr/src/linux-2.6.25.20# patch -Np1 < ../kurobox-section-mismatch2625.patch
KURO-BOX:/usr/src/linux-2.6.25.20# patch -Np1 < ../kurobox-sources-2.6.25.patch

次に、前準備を行う。

KURO-BOX:/usr/src/linux-2.6.25.20# export ARCH=ppc
KURO-BOX:/usr/src/linux-2.6.25.20# cp config_kurobox .config
KURO-BOX:/usr/src/linux-2.6.25.20# make oldconfig

ここで大事なカーネル設定を行う。

KURO-BOX:/usr/src/linux-2.6.25.20# make menuconfig

Networking > Networking options
  <*> Packet socket
  [*]   Packet socket: mmapped IO
  <*> Unix domain sockets
  < > Transformation user configuration interface
  [ ] Transformation sub policy support (EXPERIMENTAL)
  [ ] Transformation migrate database (EXPERIMENTAL)
  [ ] Transformation statistics (EXPERIMENTAL)
  <M> PF_KEY sockets
  [ ]   PF_KEY MIGRATE (EXPERIMENTAL) (NEW)
  [*] TCP/IP networking
  [*]   IP: multicasting
  [*]   IP: advanced router
          Choose IP: FIB lookup algorithm (choose FIB_HASH if unsurx x
  [*]   IP: policy routing
  [ ]   IP: equal cost multipath (NEW)
  [ ]   IP: verbose route monitoring (NEW)
  [ ]   IP: kernel level autoconfiguration
  <M>   IP: tunneling
  <M>   IP: GRE tunnels over IP
  [*]     IP: broadcast GRE over IP
  [*]   IP: multicast routing
  [*]     IP: PIM-SM version 1 support
  [*]     IP: PIM-SM version 2 support
  [ ]   IP: ARP daemon support (EXPERIMENTAL)
  [ ]   IP: TCP syncookie support (disabled per default)
  <M>   IP: AH transformation
  <M>   IP: ESP transformation
  <M>   IP: IPComp transformation
  <*>   IP: IPsec transport mode
  <*>   IP: IPsec tunnel mode
  <*>   IP: IPsec BEET mode
  < >   Large Receive Offload (ipv4/tcp)
  <*>   INET: socket monitoring interface
  [ ]   TCP: advanced congestion control  --->
  [*]   TCP: MD5 Signature Option support (RFC2385) (EXPERIMENTAL)
  < >   IP virtual server support (EXPERIMENTAL) (NEW)  --->
  < >   The IPv6 protocol
  [ ] Security Marking
  [*] Network packet filtering framework (Netfilter)  --->
      [*] Network packet filtering debugging
      [*] Advanced netfilter configuration (NEW)
      [*]   Bridged IP/ARP packets filtering (NEW)
          Core Netfilter Configuration  --->
          <M> Netfilter NFQUEUE over NFNETLINK interface
          <M> Netfilter LOG over NFNETLINK interface
          <M> Netfilter connection tracking support
          -*-   Connection tracking flow accounting
          -*-   Connection mark tracking support
          [*]   Connection tracking events
          <M>   SCTP protocol connection tracking support (EXPERIMENTAL)
          <M>   UDP-Lite protocol connection tracking support
          <M>   Amanda backup protocol support
          <M>   FTP protocol support
          <M>   H.323 protocol support
          <M>   IRC protocol support
          <M>   NetBIOS name service protocol support
          <M>   PPtP protocol support
          <M>   SANE protocol support (EXPERIMENTAL)
          <M>   SIP protocol support
          <M>   TFTP protocol support
          <M>   Connection tracking netlink interface
          {M} Netfilter Xtables support (required for ip_tables)
          <M>   "CLASSIFY" target support
          <M>   "CONNMARK" target support
          <M>   "DSCP" and "TOS" target support
          <M>   "MARK" target support
          <M>   "NFQUEUE" target Support
          <M>   "NFLOG" target support
          <M>   "NOTRACK" target support
          -M-   "RATEEST" target support
          <M>   "TRACE" target support
          <M>   "TCPMSS" target support
          <M>   "TCPOPTSTRIP" target support (EXPERIMENTAL)
          <M>   "comment" match support
          <M>   "connbytes" per-connection counter match support
          <M>   "connlimit" match support"
          <M>   "connmark" connection mark match support
          <M>   "conntrack" connection tracking match support
          <M>   "dccp" protocol match support
          <M>   "dscp" and "tos" match support
          <M>   "esp" match support
          <M>   "helper" match support
          <M>   "iprange" address range match support
          <M>   "length" match support
          <M>   "limit" match support
          <M>   "mac" address match support
          <M>   "mark" match support
          <M>   "owner" match support
          <M>   IPsec "policy" match support
          <M>   "multiport" Multiple port match support
          <M>   "physdev" match support
          <M>   "pkttype" packet type match support
          <M>   "quota" match support
          <M>   "rateest" match support
          <M>   "realm" match support
          <M>   "sctp" protocol match support (EXPERIMENTAL)
          <M>   "state" match support
          <M>   "statistic" match support
          <M>   "string" match support
          <M>   "tcpmss" match support
          <M>   "time" match support
          <M>   "u32" match support
          <M>   "hashlimit" match support
       IP: Netfilter Configuration  --->
          <M> IPv4 connection tracking support (required for NAT)
          [*]   proc/sysctl compatibility with old connection tracking (NEW)
          <M> IP Userspace queueing via NETLINK (OBSOLETE)
          <M> IP tables support (required for filtering/masq/NAT)
          <M>   "recent" match support
          <M>   "ecn" match support
          <M>   "ah" match support
          <M>   "ttl" match support
          <M>   "addrtype" address type match support
          <M>   Packet filtering
          <M>     REJECT target support
          <M>   LOG target support
          <M>   ULOG target support
          <M>   Full NAT
          <M>     MASQUERADE target support
          <M>     REDIRECT target support
          <M>     NETMAP target support
          <M>     Basic SNMP-ALG support
          <M>   Packet mangling
          <M>     ECN target support
          <M>     TTL target support
          <M>     CLUSTERIP target support (EXPERIMENTAL)
          <M>   raw table support (required for NOTRACK/TRACE)
          <M> ARP tables support
          <M>   ARP packet filtering
          <M>   ARP payload mangling
       Bridge: Netfilter Configuration  --->
          <M> Ethernet Bridge tables (ebtables) support
          <M>   ebt: broute table support
          <M>   ebt: filter table support
          <M>   ebt: nat table support
          <M>   ebt: 802.3 filter support
          <M>   ebt: among filter support
          <M>   ebt: ARP filter support
          <M>   ebt: IP filter support
          <M>   ebt: limit match support
          <M>   ebt: mark filter support
          <M>   ebt: packet type filter support
          <M>   ebt: STP filter support
          <M>   ebt: 802.1Q VLAN filter support
          <M>   ebt: arp reply target support
          <M>   ebt: dnat target support
          <M>   ebt: mark target support
          <M>   ebt: redirect target support
          <M>   ebt: snat target support
          <M>   ebt: log support
          <M>   ebt: ulog support (OBSOLETE)
  < > The DCCP Protocol (EXPERIMENTAL)  --->
  < > The SCTP Protocol (EXPERIMENTAL)  --->
  < > The TIPC Protocol (EXPERIMENTAL)  --->
  < > Asynchronous Transfer Mode (ATM)
  <M> 802.1d Ethernet Bridging
  <M> 802.1Q VLAN Support
  < > DECnet Support
  < > ANSI/IEEE 802.2 LLC type 2 Support
  < > The IPX protocol
  < > Appletalk protocol support
  < > CCITT X.25 Packet Layer (EXPERIMENTAL)
  < > LAPB Data Link Driver (EXPERIMENTAL)
  < > Acorn Econet/AUN protocols (EXPERIMENTAL)
  < > WAN router
  [ ] QoS and/or fair queueing  --->
      Network testing  --->

Networking > Wireless
  {*} Improved wireless configuration API
  [*]   nl80211 new netlink interface support (NEW)
  -*- Wireless extensions
  <M> Generic IEEE 802.11 Networking Stack (mac80211)
        Rate control algorithm selection  --->
  [ ]   Enable packet alignment debugging (NEW)
  [ ]   Enable debugging output (NEW)
  {M} Generic IEEE 802.11 Networking Stack (DEPRECATED)
  [ ]   Enable full debugging output (NEW)
  -M-   IEEE 802.11 WEP encryption (802.1x)
  < >   IEEE 802.11i CCMP support (NEW)
  < >   IEEE 802.11i TKIP encryption (NEW)
  < >   Software MAC add-on to the IEEE 802.11 networking stack (NEW)

Device Drivers > Networking device support
  [ ]   Netdevice multiple hardware queue support
  <M>   Dummy net driver support
  < >   Bonding driver support
  < >   MAC-VLAN support (EXPERIMENTAL)
  < >   EQL (serial line load balancing) support
  <M>   Universal TUN/TAP device driver support
  < >   Virtual ethernet pair device
  < >   ARCnet support  --->
  < >   PHY Device support and infrastructure  --->
  [*]   Ethernet (10 or 100Mbit)  --->
  [*]   Ethernet (1000 Mbit)  --->
  [ ]   Ethernet (10000 Mbit)  --->
  [ ]   Token Ring driver support  --->
        Wireless LAN  --->
        [ ] Wireless LAN (pre-802.11)
        [*] Wireless LAN (IEEE 802.11)
        < >   Intel PRO/Wireless 2100 Network Connection (NEW)
        < >   Intel PRO/Wireless 2200BG and 2915ABG Network Connection (NEW)
        < >   Marvell 8xxx Libertas WLAN driver support (NEW)
        < >   Cisco/Aironet 34X/35X/4500/4800 ISA and PCI cards (NEW)
  <M>   Hermes chipset 802.11b support (Orinoco/Prism2/Symbol)
  < >     Hermes in PLX9052 based PCI adaptor support (Netgear MA30
  < >     Hermes in TMD7160 based PCI adaptor support (NEW)
  < >     Nortel emobility PCI adaptor support (NEW)
  < >     Prism 2.5 PCI 802.11b adaptor support (NEW)
        < >   Atmel at76c50x chipset  802.11b support (NEW)
        < >   Intersil Prism GT/Duette/Indigo PCI/Cardbus (NEW)
        <M>   USB ZD1201 based Wireless device support
        < >   Wireless RNDIS USB support (NEW)
        < >   Realtek 8180/8185 PCI support (NEW)
        <M>   Realtek 8187 USB support
        < >   ADMtek ADM8211 support (NEW)
        < >   Softmac Prism54 support (NEW)
        < >   Atheros 5xxx wireless cards support (NEW)
        < >   Intel Wireless WiFi 4965AGN (NEW)
        < >   Intel PRO/Wireless 3945ABG/BG Network Connection (NEW)
        <M>   IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)
        [*]     Support downloading firmware images with Host AP driver
        [*]       Support for non-volatile firmware download
        < >     Host AP driver for Prism2/2.5/3 in PLX9052 PCI adaptors
        < >     Host AP driver for Prism2.5 PCI adaptors (NEW)
        < >   Broadcom 43xx wireless support (mac80211 stack) (NEW)
        < >   Broadcom 43xx-legacy wireless support (mac80211 stack) (NEW)
        <M>   ZyDAS ZD1211/ZD1211B USB-wireless support
        [*]     ZyDAS ZD1211 debugging
        < >   Ralink driver support (NEW)
        USB Network Adapters  --->
        < > USB CATC NetMate-based Ethernet device support (EXPERIMENTAL)
        < > USB KLSI KL5USB101-based ethernet device support
        < > USB Pegasus/Pegasus-II based ethernet device support
        <M> USB RTL8150 based ethernet device support (EXPERIMENTAL)
        < > Multi-purpose USB Networking Framework
  [ ]   Wan interfaces support  --->
  [ ]   FDDI driver support
  [ ]   HIPPI driver support (EXPERIMENTAL)
  < >   PPP (point-to-point protocol) support
  < >   SLIP (serial line) support
  [ ]   Fibre Channel driver support
  < >   Network console logging support (EXPERIMENTAL)

とりあえず、iptable、IPsec、マルチキャスト、IPIP/GRE トンネル、Dummy インタフェース、ブリッジング、802.1Q VLANとUSB無線LANのいくつかを有効にして設定を保存。
そしてついにコンパイル。ここでuImageを作成します。

KURO-BOX:/usr/src/linux-2.6.25.20# make uImage
scripts/kconfig/conf -s arch/ppc/Kconfig
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  CHK     include/linux/utsrelease.h
  UPD     include/linux/utsrelease.h
  SYMLINK include/asm -> include/asm-ppc
  CC      arch/ppc/kernel/asm-offsets.s
～省略～
  LD      .tmp_vmlinux2
  KSYM    .tmp_kallsyms2.S
  AS      .tmp_kallsyms2.o
  LD      vmlinux
  SYSMAP  System.map
  SYSMAP  .tmp_System.map
  OBJCOPY arch/ppc/boot/images/vmlinux.bin
  GZIP    arch/ppc/boot/images/vmlinux.gz
  UIMAGE  arch/ppc/boot/images/uImage
Image Name:   Linux-2.6.25.20-kurobox
Created:      Sat Jul  2 21:40:24 2011
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    1460604 Bytes = 1426.37 kB = 1.39 MB
Load Address: 0x00000000
Entry Point:  0x00000000
  Image: arch/ppc/boot/images/uImage is ready

無事にuImageが作成できたので続けて、モジュールの作成とインストール

KURO-BOX:/usr/src/linux-2.6.25.20# make modules
KURO-BOX:/usr/src/linux-2.6.25.20# make modules_install

作成しuImageを格納するために既存のものをバックアップする

KURO-BOX:/usr/src/linux-2.6.25.20# cd /boot
KURO-BOX:/boot# ls -la
drwxr-xr-x  3 root    root       4096 2011-06-26 22:35 .
drwxr-xr-x 21 root    root       4096 2011-04-10 05:23 ..
-rw-r--r--  1 tmp-kun tmp-kun   31064 2008-05-04 22:18 .config
-rw-r--r--  1 root    root     718574 2011-06-26 18:20 System.map
-rw-r--r--  1 root    root    1465831 2011-06-26 22:01 uImage
lrwxrwxrwx  1 tmp-kun tmp-kun       6 2011-04-10 05:25 vmlinux.UBoot -> uImage
-rwxr-xr-x  1 tmp-kun tmp-kun 3063942 2008-05-04 22:18 vmlinux.bin
KURO-BOX:/boot# mv System.map System.map.org
KURO-BOX:/boot# mv uImage uImage.org

作成したuImageとコピーする。

KURO-BOX:/boot# cp -p /usr/src/linux-2.6.25.20/arch/ppc/boot/images/uImage /boot
KURO-BOX:/boot# cp -p /usr/src/linux-2.6.25.20/System.map /boot

最終的にはこんな感じ

KURO-BOX:/boot# ls -la
drwxr-xr-x  3 root    root       4096 2011-06-26 22:35 .
drwxr-xr-x 21 root    root       4096 2011-04-10 05:23 ..
-rw-r--r--  1 tmp-kun tmp-kun   31064 2008-05-04 22:18 .config
-rw-r--r--  1 root    root     718574 2011-06-26 18:20 System.map
-rw-r--r--  1 tmp-kun tmp-kun  694437 2008-05-04 22:18 System.map.org
-rw-r--r--  1 root    root    1465831 2011-06-26 22:01 uImage
-rw-r--r--  1 tmp-kun tmp-kun 1432414 2008-05-04 22:18 uImage.org
lrwxrwxrwx  1 tmp-kun tmp-kun       6 2011-04-10 05:25 vmlinux.UBoot -> uImage
-rwxr-xr-x  1 tmp-kun tmp-kun 3063942 2008-05-04 22:18 vmlinux.bin

これで、再起動後、起動確認。

KURO-BOX:~# uname -a
Linux KURO-BOX 2.6.25.20-kurobox #3 Sun Jun 26 21:59:59 JST 2011 ppc GNU/Linux

カーネルのバージョンが更新されていることを確認する

U-Bootで使える形でカーネル再構築をするためにmkimageをコンパイルする

現在玄箱にはU-Boot1.1.4が入っているから1.1.4のソースから作成する。
まずは、ソースのダウンロードして、解凍

KURO-BOX:~# cd /usr/src/
KURO-BOX:/usr/src# wget http://prdownloads.sourceforge.net/u-boot/u-boot-1.1.4.tar.bz2
KURO-BOX:/usr/src# tar -xjvf u-boot-1.1.4.tar.bz2
KURO-BOX:/usr/src# cd u-boot-1.1.4

次にmake時に$TOPDIRを参照しているみたいだからカレントパスを格納する。

KURO-BOX:/usr/src/u-boot-1.1.4# export TOPDIR=`pwd`
KURO-BOX:/usr/src/u-boot-1.1.4# echo $TOPDIR
/usr/src/u-boot-1.1.4

今回必要なのはmkimageだからtoolsディレクトリのみmakeする。

KURO-BOX:/usr/src/u-boot-1.1.4# cd tools
KURO-BOX:/usr/src/u-boot-1.1.4/tools# make mkimage
ln -s ../common/environment.c environment.c
ln -s ../lib_generic/crc32.c crc32.c
gcc -M -Wall -pedantic -idirafter ../include -DTEXT_BASE= -DUSE_HOSTCC environment.c img2srec.c mkimage.c crc32.c envcrc.c gen_eth_addr.c bmp_logo.c > .depend
environment.c:28:20: error: config.h: No such file or directory
envcrc.c:32:20: error: config.h: No such file or directory
gcc -g -Wall -pedantic -idirafter ../include -DTEXT_BASE= -DUSE_HOSTCC -O -c mkimage.c
gcc -g -Wall -pedantic -idirafter ../include -DTEXT_BASE= -DUSE_HOSTCC -O -c crc32.c
gcc -Wall -pedantic -idirafter ../include -DTEXT_BASE= -DUSE_HOSTCC -O  -o mkimage mkimage.o crc32.o
strip mkimage

エラーは出ているがこのmkimageでU-Boot対応カーネルは問題なく作成、起動できた。

KURO-BOX:/usr/src/u-boot-1.1.4/tools# cp -p mkimage /usr/local/bin
KURO-BOX:/usr/src/u-boot-1.1.4/tools# which mkimage
/usr/local/bin/mkimage

作成されたmkimageは、/usr/local/binなどパスの通った場所にコピーして完了。

GCCをインストールするが、3.4系とデフォルト（4.3系）の2バージョンをインストール

KURO-BOX:~# aptitude install gcc gcc-3.4

インストールが終わったら切り替えれるようにupdate-alternativesで設定
・・・とはいえ、下記のコマンドで確認してみる

KURO-BOX:~# update-alternatives --display gcc
No alternatives for gcc.

ないみたい。別の名前で存在してるかもと下記のコマンドで設定できるものすべてを設定してみる

KURO-BOX:~# update-alternatives --all

やっぱりないみたい。
なので、手動で追加（グループ名は”gcc”とした。）

KURO-BOX:~# update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-3.4 34 --slave /usr/bin/cpp cpp /usr/bin/cpp-3.4 --slave /usr/bin/gcov gcov /usr/bin/gcov-3.4
KURO-BOX:~# update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.3 43 --slave /usr/bin/cpp cpp /usr/bin/cpp-4.3 --slave /usr/bin/gcov gcov /usr/bin/gcov-4.3

デフォルトでgcc-3.4を使うように設定

KURO-BOX:~# update-alternatives --config gcc

There are 2 alternatives which provide `gcc'.

  Selection    Alternative
-----------------------------------------------
*         1    /usr/bin/gcc-3.4
 +        2    /usr/bin/gcc-4.3

Press enter to keep the default[*], or type selection number: 1
Using '/usr/bin/gcc-3.4' to provide 'gcc'.