「カーネル入れ替え」の編集履歴（バックアップ）一覧はこちら
「カーネル入れ替え」(2015/03/27 (金) 13:57:17) の最新版変更点
追加された行は緑色になります。
削除された行は赤色になります。
[[未解決の問題]]にあげていますが、なぜかJFFS2で/dev/mtdblock2がmountできない問題があり、カーネルで大量のエラーが吐かれていることからカーネルの問題と仮定。
CONFIGの指定漏れがあるのかとも思いましたが、とりあえずwheezyで組み込まれていると思われる3.2.65のカーネルでそのままorion5x_defconfigを使って作成してみることにした。
**セルフコンパイル
まずはセルフコンパイルで試す
> # wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.2.65.tar.gz
> # tar xvf linux-3.2.65.tar.gz
> # cd linux-3.2.65
> # vi Makefile
> VERSION = 3
> PATCHLEVEL = 2
> SUBLEVEL = 65
> EXTRAVERSION = -orion5x
EXTRAVERSIONに-orion5xを追記。これは後ほど実行するupdate-initramfsのために必要。
このままだとmachine IDが0x0000020eになり玄箱PROと識別されないのでパッチを当てる
> # vi arch/arm/boot/Makefile
> $(obj)/zImage: $(obj)/compressed/vmlinux FORCE
> $(call if_changed,objcopy)
> + devio > foo 'wl 0xe3a01c05,4' 'wl 0xe38110e5,4'
> + cat foo $(obj)/zImage > zImage.new
> + mv zImage.new $(obj)/zImage
> + rm foo
> @echo ' Kernel: $@ is ready'
コンパイル。作成するのはuImageではなくzImageとしておく。
> # export ARCH=arm
> # make orion5x_defconfig
> # make menuconfig
変更箇所
> General setup --->
> Kernel compression mode (LZMA) --->
> [*] Initial RAM filesystem and RAM disk (initramfs/initrd) support
> () Initramfs source file(s)
> [*] Support initial ramdisks compressed using gzip
> [ ] Support initial ramdisks compressed using bzip2
> [ ] Support initial ramdisks compressed using LZMA
> [ ] Support initial ramdisks compressed using XZ
> [ ] Support initial ramdisks compressed using LZO
> Device Drivers --->
> Generic Driver Options --->
> [*] Maintain a devtmpfs filesystem to mount at /dev
> [*] Automount devtmpfs at /dev, after the kernel mounted the rootfs
> <*> Memory Technology Device (MTD) support --->
> Self-contained MTD device drivers --->
> <M> Test driver using RAM
> (4096) MTDRAM device size in KiB
> (128) MTDRAM erase block size in KiB
> <M> MTD using block device
> File systems
> <*> The Extended 4 (ext4) filesystem
> [*] Ext4 extended attributes
> [*] Network File Systems --->
> <M> CIFS support (advanced network filesystem, SMBFS successor)
> -*- Native language support --->
> (iso8859-1) Default NLS Option
> <M> Japanese charsets (Shift-JIS, EUC-JP)
> <*> NLS ISO 8859-1 (Latin 1; Western European Languages)
> <M> NLS UTF-8
コンパイル
> # nohup make zImage modules modules_install &
> # jobs
> # disown %1
セルフコンパイルで時間が掛かるので終わるまで気長に待つ。
完了。
> # cp arch/arm/boot/zImage /boot/vmlinuz-3.2.65-orion5x
> # mv /boot/uImage.buffalo /boot/uImage.buffalo.old
> # cp arch/arm/boot/uImage /boot/uImage.buffalo
> # update-initramfs -c -k 3.2.65-orion5x -t
> update-initramfs: Generating /boot/initrd.img-3.2.65-orion5x
> flash-kernel: installing version 3.2.65-orion5x
> Generating kernel u-boot image... done.
> Installing new uImage.buffalo.
> Generating initramfs u-boot image... done.
> Installing new initrd.buffalo.
> # reboot
起動完了
起動はできたが、
> # mount -t jffs2 /dev/mtdblock1 /mnt/mtd
同じ。
ダメ。マウントできない。大量のエラーが出る症状も同じ。
なにがいけないのか分からない。
**クロスコンパイル
何度も作り直すと玄箱PROでは時間がかかるのでクロスコンパイル環境を準備する。
VMware Player 7.1.0にdebian-7.8.0-i386-netinst.isoをセットしてDebian 7.xを導入。
Intel PC上のVMware Player環境でarmel向けのクロスコンパイル環境を作成する。
■bintuilsをコンパイルしてインストールする
> # cd ~
> # apt-get install dpkg-dev
> # mkdir binutils
> # cd binutils
> # apt-get source binutils
> # apt-get build-dep binutils
> # cd binutils*
> # TARGET=armel dpkg-buildpackage -b -uc -us
> # cd ..
> # dpkg -i *.deb
■gccをコンパイルしてインストールする
> # cd ~
> # mkdir gcc
> # cd gcc
> # apt-get install xapt
> # apt-get source gcc-4.7
> # apt-get build-dep gcc-4.7
> # xapt -a armel -m libc6-dev
> # apt-get install binutils-multiarch
> # cd gcc-*
> # GCC_TARGET=armel dpkg-buildpackage -b -uc -us
> # cd ..
> # dpkg -i *.deb
■クロスコンパイル・チェック
> # cd ~
> # vi main.c
>
> #include <stdio.h>
> int main(int argc, char** argv)
> {
> printf( "Hello World\n" );
> return 0;
> }
>
> # arm-linux-gnueabi-gcc-4.7 -static -o main main.c
> # apt-get install qemu qemu-system
> # qemu-arm ./main
> Hello World
■リンク作成
> # ln -s /usr/bin/arm-linux-gnueabi-cpp-4.7 /usr/local/bin/arm-linux-gnueabi-cpp
> # ln -s /usr/bin/arm-linux-gnueabi-gcc-ar-4.7 /usr/local/bin/arm-linux-gnueabi-gcc-ar
> # ln -s /usr/bin/arm-linux-gnueabi-gccgo-4.7 /usr/local/bin/arm-linux-gnueabi-gccgo
> # ln -s /usr/bin/arm-linux-gnueabi-g++-4.7 /usr/local/bin/arm-linux-gnueabi-g++
> # ln -s /usr/bin/arm-linux-gnueabi-gcc-nm-4.7 /usr/local/bin/arm-linux-gnueabi-gcc-nm
> # ln -s /usr/bin/arm-linux-gnueabi-gcov-4.7 /usr/local/bin/arm-linux-gnueabi-gcov
> # ln -s /usr/bin/arm-linux-gnueabi-gcc-4.7 /usr/local/bin/arm-linux-gnueabi-gcc
> # ln -s /usr/bin/arm-linux-gnueabi-gcc-ranlib-4.7 /usr/local/bin/arm-linux-gnueabi-gcc-ranlib
> # ln -s /usr/bin/arm-linux-gnueabi-gfortran-4.7 /usr/local/bin/arm-linux-gnueabi-gfortran
■環境設定、準備
> # cd /opt
> # export ARCH=arm
> # export CROSS_COMPILE=arm-linux-gnueabi-
> # export INSTALL_MOD_PATH=/opt/kurobox_pro
> # export INSTALL_PATH=$INSTALL_MOD_PATH/boot
> # mkdir -p /opt/kurobox_pro/boot
> # wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.2.65.tar.gz
> # tar xvf linux-3.2.65.tar.gz
> # cd linux-3.2.65
> # vi Makefile
> VERSION = 3
> PATCHLEVEL = 2
> SUBLEVEL = 65
> EXTRAVERSION = -orion5x
EXTRAVERSIONに-orion5xを追記
> # vi arch/arm/boot/Makefile
> $(obj)/zImage: $(obj)/compressed/vmlinux FORCE
> $(call if_changed,objcopy)
> devio > foo 'wl 0xe3a01c05,4' 'wl 0xe38110e5,4'
> cat foo $(obj)/zImage > zImage.new
> mv zImage.new $(obj)/zImage
> rm foo
> @echo ' Kernel: $@ is ready'
> # apt-get install devio
> # apt-get install libncurses5-dev
■コンパイル
> # make mrproper
> # make orion5x_defconfig
> # cp .config /opt/kurobox_pro/boot/config-3.2.65-orion5x-default
> # make menuconfig
> # make zImage modules modules_install
> # cp arch/arm/boot/zImage /opt/kurobox_pro/boot/vmlinuz-3.2.65-orion5x
> # cp .config /opt/kurobox_pro/boot/config-3.2.65-orion5x
> # cd /opt/kurobox_pro
> # tar cjvf kurobox-kernel.tar.bz2 *
※configの内容は上のセルフコンパイルと同様
■展開(玄箱PRO側)
> # tar -C / -xjvf kurobox-kernel.tar.bz2
> # cd /boot
> # mv uImage.buffalo uImage.buffalo.old
> # mv initrd.buffalo initrd.buffalo.old
> # update-initramfs -c -k 3.2.65-orion5x
> update-initramfs: Generating /boot/initrd.img-3.2.65-orion5x
> flash-kernel: installing version 3.2.65-orion5x
> Generating kernel u-boot image... done.
> Installing new uImage.buffalo.
> Generating initramfs u-boot image... done.
> Installing new initrd.buffalo.
> # shutdown -r now
■起動
> Orion1 CPU = Low
>
> === KURO U-Boot. ===
> ** LOADER **
> ** KUROBOX BOARD: KURO_BOX LE (CFG_ENV_ADDR=fffff000)
>
>
> U-Boot 1.1.1 (Apr 10 2007 - 18:10:08) Marvell version: 1.12.1 - TINY
>
> DRAM CS[0] base 0x00000000 size 128MB
> DRAM Total size 128MB
> [256kB@fffc0000] Flash: 256 kB
> Addresses 20M - 0M are saved for the U-Boot usage.
> Mem malloc Initialization (20M - 16M): Done
> NAND: 256 MB
>
> Soc: 88F5182 A2
> CPU: ARM926 (Rev 0) running @ 500Mhz
> Orion 1 streaming disabled
> SysClock = 250Mhz , TClock = 166Mhz
>
>
> USB 0: host mode
> USB 1: host mode
> PCI 0: PCI Express Root Complex Interface
> PCI 1: Conventional PCI, speed = 33000000
> Net: egiga0 [PRIME]
> Using 88E1118 phy
> Found boot image
> hit any key to switch tftp boot.
> Hit any key to stop autoboot: 2 1 0
> <<system_bootend>>
> Hit any key to stop autoboot: 3 2 1 0
>
> Reset IDE:
> Marvell Serial ATA Adapter
> Integrated Sata device found
> Device 0: OK
> Model: Hitachi HTS542525K9SA00 Firm: BBFOC31P Ser#: 080422BB6F00WDDDBT6G
> Type: Hard Disk
> Supports 48-bit addressing
> Capacity: 238475.1 MB = 232.8 GB (488397168 x 512)
>
> Using device ide0, partition 1
>
> Loading from block device ide device 0, partition 1: Name: hda1
> Type: U-Boot File:/uImage.buffalo
>
> 1684112 bytes read
> Using device ide0, partition 1
>
> Loading from block device ide device 0, partition 1: Name: hda1
> Type: U-Boot File:/initrd.buffalo
>
> 1828423 bytes read
> <<stop_sound>>
> ## Booting image at 00100000 ...
> Image Name: kernel 3.2.65-orion5x
> Created: 2015-03-27 1:03:13 UTC
> Image Type: ARM Linux Kernel Image (uncompressed)
> Data Size: 1684048 Bytes = 1.6 MB
> Load Address: 00008000
> Entry Point: 00008000
> Verifying Checksum ... OK
> OK
> ## Loading Ramdisk Image at 02000000 ...
> Image Name: ramdisk 3.2.65-orion5x
> Created: 2015-03-27 1:03:13 UTC
> Image Type: ARM Linux RAMDisk Image (gzip compressed)
> Data Size: 1828359 Bytes = 1.7 MB
> Load Address: 00000000
> Entry Point: 00000000
> Verifying Checksum ... OK
>
> Starting kernel ...
>
> arg:console=ttyS0,115200
> Uncompressing Linux... done, booting the kernel.
> Linux version 3.2.65-orion5x (root@debian) (gcc version 4.7.2 (Debian 4.7.2-5) ) #4 PREEMPT Fri Mar 27 09:53:47 JST 2015
> CPU: Feroceon [41069260] revision 0 (ARMv5TEJ), cr=a0053177
> CPU: VIVT data cache, VIVT instruction cache
> Machine: Buffalo/Revogear Kurobox Pro
> Clearing invalid memory bank 0KB@0xffffffff
> Clearing invalid memory bank 0KB@0xffffffff
> Clearing invalid memory bank 0KB@0xffffffff
> Ignoring unrecognised tag 0x00000000
> Ignoring unrecognised tag 0x00000000
> Ignoring unrecognised tag 0x00000000
> Ignoring unrecognised tag 0x41000403
> Memory policy: ECC disabled, Data cache writeback
> Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
> Kernel command line: console=ttyS0,115200
> PID hash table entries: 512 (order: -1, 2048 bytes)
> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Memory: 128MB = 128MB total
> Memory: 123548k/123548k available, 7524k reserved, 0K highmem
> Virtual kernel memory layout:
> vector : 0xffff0000 - 0xffff1000 ( 4 kB)
> fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
> vmalloc : 0xc8800000 - 0xfd800000 ( 848 MB)
> lowmem : 0xc0000000 - 0xc8000000 ( 128 MB)
> modules : 0xbf000000 - 0xc0000000 ( 16 MB)
> .text : 0xc0008000 - 0xc0415368 (4149 kB)
> .init : 0xc0416000 - 0xc0439000 ( 140 kB)
> .data : 0xc043a000 - 0xc045b200 ( 133 kB)
> .bss : 0xc045b224 - 0xc0477164 ( 112 kB)
> SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
> NR_IRQS:64
> sched_clock: 32 bits at 166MHz, resolution 5ns, wraps every 25769ms
> Calibrating delay loop... 265.42 BogoMIPS (lpj=1327104)
> pid_max: default: 32768 minimum: 301
> Mount-cache hash table entries: 512
> CPU: Testing write buffer coherency: ok
> devtmpfs: initialized
> NET: Registered protocol family 16
> Orion ID: MV88F5182-A2. TCLK=166666667.
> Applying Orion-1/Orion-NAS PCIe config read transaction workaround
> PCI: bus0: Fast back to back transfers disabled
> bio: create slab <bio-0> at 0
> SCSI subsystem initialized
> usbcore: registered new interface driver usbfs
> usbcore: registered new interface driver hub
> usbcore: registered new device driver usb
> Switching to clocksource orion_clocksource
> NET: Registered protocol family 2
> IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
> TCP established hash table entries: 4096 (order: 3, 32768 bytes)
> TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
> TCP: Hash tables configured (established 4096 bind 4096)
> TCP reno registered
> UDP hash table entries: 256 (order: 0, 4096 bytes)
> UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
> NET: Registered protocol family 1
> RPC: Registered named UNIX socket transport module.
> RPC: Registered udp transport module.
> RPC: Registered tcp transport module.
> RPC: Registered tcp NFSv4.1 backchannel transport module.
> Trying to unpack rootfs image as initramfs...
> Freeing initrd memory: 1784K
> NetWinder Floating Point Emulator V0.97 (double precision)
> JFFS2 version 2.2. (NAND) c 2001-2006 Red Hat, Inc.
> msgmni has been set to 244
> io scheduler noop registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> mv_xor_shared mv_xor_shared.0: Marvell shared XOR driver
> mv_xor mv_xor.0: Marvell XOR: ( xor cpy )
> mv_xor mv_xor.1: Marvell XOR: ( xor fill cpy )
> Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
> serial8250.0: ttyS0 at MMIO 0xf1012000 (irq = 3) is a 16550A
> console [ttyS0] enabled
> serial8250.1: ttyS1 at MMIO 0xf1012100 (irq = 4) is a 16550A
> brd: module loaded
> loop: module loaded
> sata_mv sata_mv.0: slots 32 ports 2
> scsi0 : sata_mv
> scsi1 : sata_mv
> ata1: SATA max UDMA/133 irq 29
> ata2: SATA max UDMA/133 irq 29
> physmap platform flash device: 00040000 at f4000000
> Found: SST 39LF020
> physmap-flash.0: Found 1 x8 devices at 0x0 in 8-bit bank
> number of JEDEC chips: 1
> Generic platform RAM MTD, (c) 2004 Simtec Electronics
> NAND device: Manufacturer ID: 0x20, Chip ID: 0xda (ST Micro NAND 256MiB 3,3V 8-bit)
> Scanning device for bad blocks
> Bad eraseblock 854 at 0x000006ac0000
> Creating 3 MTD partitions on "orion_nand":
> 0x000000000000-0x000000400000 : "uImage"
> 0x000000400000-0x000004400000 : "rootfs"
> 0x000004400000-0x000010000000 : "extra"
> mv643xx_eth: MV-643xx 10/100/1000 ethernet driver version 1.4
> mv643xx_eth smi: probed
> mv643xx_eth_port mv643xx_eth_port.0: eth0: port 0 with MAC address 00:16:01:a4:c9:b9
> ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> orion-ehci orion-ehci.0: Marvell Orion EHCI
> orion-ehci orion-ehci.0: new USB bus registered, assigned bus number 1
> orion-ehci orion-ehci.0: irq 17, io mem 0xf1050000
> orion-ehci orion-ehci.0: USB 2.0 started, EHCI 1.00
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 1 port detected
> orion-ehci orion-ehci.1: Marvell Orion EHCI
> orion-ehci orion-ehci.1: new USB bus registered, assigned bus number 2
> orion-ehci orion-ehci.1: irq 12, io mem 0xf10a0000
> orion-ehci orion-ehci.1: USB 2.0 started, EHCI 1.00
> hub 2-0:1.0: USB hub found
> hub 2-0:1.0: 1 port detected
> usbcore: registered new interface driver usblp
> Initializing USB Mass Storage driver...
> usbcore: registered new interface driver usb-storage
> USB Mass Storage support registered.
> usbcore: registered new interface driver ums-datafab
> usbcore: registered new interface driver ums-freecom
> usbcore: registered new interface driver ums-jumpshot
> usbcore: registered new interface driver ums-sddr09
> usbcore: registered new interface driver ums-sddr55
> i2c /dev entries driver
> rtc-rs5c372 0-0032: rs5c372a found, 24hr, driver version 0.6
> rtc-rs5c372 0-0032: rtc core: registered rtc-rs5c372 as rtc0
> usbcore: registered new interface driver usbhid
> usbhid: USB HID core driver
> oprofile: hardware counters not available
> oprofile: using timer interrupt.
> TCP cubic registered
> NET: Registered protocol family 17
> VFP support v0.3: not present
> rtc-rs5c372 0-0032: setting system clock to 2015-03-27 01:03:50 UTC (1427418230)
> ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> ata1.00: ATA-8: Hitachi HTS542525K9SA00, BBFOC31P, max UDMA/133
> ata1.00: 488397168 sectors, multi 0: LBA48 NCQ (depth 31/32)
> ata1.00: configured for UDMA/133
> scsi 0:0:0:0: Direct-Access ATA Hitachi HTS54252 BBFO PQ: 0 ANSI: 5
> sd 0:0:0:0: [sda] 488397168 512-byte logical blocks: (250 GB/232 GiB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> ata2: SATA link down (SStatus 0 SControl 300)
> sda: sda1 sda2 sda3 < sda5 > sda4
> sd 0:0:0:0: [sda] Attached SCSI disk
> Freeing init memory: 140K
> Loading, please wait...
> udevd[457]: starting version 175
> Begin: Loading essential drivers ... modprobe: module platform:sata_mv not found in modules.dep
> done.
> Begin: Running /scripts/init-premount ... done.
> Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
> Begin: Running /scripts/local-premount ... done.
> EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null)
> Begin: Running /scripts/local-bottom ... done.
> done.
> Begin: Running /scripts/init-bottom ... done.
> INIT: version 2.88 booting
> [info] Using makefile-style concurrent boot in runlevel S.
> [....] Starting the hotplug events dispatcher: udevdudevd[658]: starting version 175
> [ ok .
> [....] Synthesizing the initial hotplug events...[ ok done.
> [....] Waiting for /dev to be fully populated...[ ok done.
> [....] Activating swap...Adding 365564k swap on /dev/sda5. Priority:-1 extents:1 across:365564k
> [ ok done.
> EXT4-fs (sda2): re-mounted. Opts: (null)
> [....] Checking root file system...fsck from util-linux 2.20.1
> /dev/sda2: clean, 33480/1310720 files, 355119/5242880 blocks
> [ ok done.
> EXT4-fs (sda2): re-mounted. Opts: errors=remount-ro
> [....] Cleaning up temporary files... /tmp[ ok .
> [....] Activating lvm and md swap...[ ok done.
> [....] Checking file systems...fsck from util-linux 2.20.1
> /dev/sda4: clean, 142666/13918208 files, 34355865/55652608 blocks
> /dev/sda1: clean, 29/124496 files, 38315/248832 blocks
> [ ok done.
> [....] Mounting local filesystems...EXT4-fs (sda4): mounted filesystem with ordered data mode. Opts: (null)
> [ ok done.
> [....] Activating swapfile swap...[ ok done.
> [....] Cleaning up temporary files...[ ok .
> [....] Setting kernel variables ...[ ok done.
> [....] Configuring network interfaces...[ ok done.
> [....] Starting rpcbind daemon...rpcbind: cannot create socket for udp6
> rpcbind: cannot create socket for tcp6
> [ ok .
> [....] Starting NFS common utilities: statd idmapd[ ok .
> [....] Cleaning up temporary files...mv643xx_eth_port mv643xx_eth_port.0: eth0: link up, 100 Mb/s, full duplex, flow control disabled
> [ ok .
> [....] Setting up X socket directories... /tmp/.X11-unix /tmp/.ICE-unix[ ok .
> INIT: Entering runlevel: 2
> [info] Using makefile-style concurrent boot in runlevel 2.
> [....] Starting rpcbind daemon...[....] Already running.[ ok .
> [....] Starting NFS common utilities: statd idmapd[ ok .
> [....] Starting enhanced syslogd: rsyslogd[ ok .
> [....] Starting deferred execution scheduler: atd[ ok .
> [....] Starting periodic command scheduler: cron[ ok .
> [....] Starting system message bus: dbus[ ok .
> [....] Starting MTA: exim4[ ok .
> ALERT: exim paniclog /var/log/exim4/paniclog has non-zero size, mail system possibly broken
> [....] Starting Daemon for Linkstation/Kuro micro controller: micro-evtd[ ok .
> [....] Starting Samba daemons: nmbd smbd[ ok .
> [....] Starting OpenBSD Secure Shell server: sshd[ ok .
>
> Debian GNU/Linux 7 KUROBOX-PRO ttyS0
>
> KUROBOX-PRO login: root
> Password:
> Last login: Fri Mar 27 11:05:45 JST 2015 on ttyS0
> Linux KUROBOX-PRO 3.2.65-orion5x #4 PREEMPT Fri Mar 27 09:53:47 JST 2015 armv5tel
>
> The programs included with the Debian GNU/Linux system are free software;
> the exact distribution terms for each program are described in the
> individual files in /usr/share/doc/*/copyright.
>
> Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
> permitted by applicable law.
> KUROBOX-PRO:~# mount /dev/mtdblock2 /mnt/mtd
だめ
> KUROBOX-PRO:~# mount -t jffs2 /dev/mtdblock2 /mnt/mtd
これもだめ
カーネル変えても変わらない
[[未解決の問題]]にあげていますが、なぜかJFFS2で/dev/mtdblock2がmountできない問題があり、カーネルで大量のエラーが吐かれていることからカーネルの問題と仮定。
CONFIGの指定漏れがあるのかとも思いましたが、とりあえずwheezyで組み込まれていると思われる3.2.65のカーネルでそのままorion5x_defconfigを使って作成してみることにした。
**セルフコンパイル
まずはセルフコンパイルで試す
> # wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.2.65.tar.gz
> # tar xvf linux-3.2.65.tar.gz
> # cd linux-3.2.65
> # vi Makefile
> VERSION = 3
> PATCHLEVEL = 2
> SUBLEVEL = 65
> EXTRAVERSION = -orion5x
EXTRAVERSIONに-orion5xを追記。これは後ほど実行するupdate-initramfsのために必要。
このままだとmachine IDが0x0000020eになり玄箱PROと識別されないのでパッチを当てる
> # vi arch/arm/boot/Makefile
> $(obj)/zImage: $(obj)/compressed/vmlinux FORCE
> $(call if_changed,objcopy)
> + devio > foo 'wl 0xe3a01c05,4' 'wl 0xe38110e5,4'
> + cat foo $(obj)/zImage > zImage.new
> + mv zImage.new $(obj)/zImage
> + rm foo
> @echo ' Kernel: $@ is ready'
コンパイル。作成するのはuImageではなくzImageとしておく。
> # export ARCH=arm
> # make orion5x_defconfig
> # make menuconfig
変更箇所
・カーネルは圧縮率の高いLZMAに変更
・gzip圧縮のinitrdを使うので追加
・起動時にdevtmpfsがあった方がよさそうなメッセージがあったので追加
・mtdblockのマウントができないので代替ツールとしてmtdram、mtdblockを追加([[未解決の問題]])
・sda2がext4なのでMから*に変更
・他のサーバーの共有フォルダをマウントしたいのでCIFSを追加
・言語はiso8859-1を基本に日本語とUTF-8を使えるように設定
> General setup --->
> Kernel compression mode (LZMA) --->
> [*] Initial RAM filesystem and RAM disk (initramfs/initrd) support
> () Initramfs source file(s)
> [*] Support initial ramdisks compressed using gzip
> [ ] Support initial ramdisks compressed using bzip2
> [ ] Support initial ramdisks compressed using LZMA
> [ ] Support initial ramdisks compressed using XZ
> [ ] Support initial ramdisks compressed using LZO
> Device Drivers --->
> Generic Driver Options --->
> [*] Maintain a devtmpfs filesystem to mount at /dev
> [*] Automount devtmpfs at /dev, after the kernel mounted the rootfs
> <*> Memory Technology Device (MTD) support --->
> Self-contained MTD device drivers --->
> <M> Test driver using RAM
> (4096) MTDRAM device size in KiB
> (128) MTDRAM erase block size in KiB
> <M> MTD using block device
> File systems
> <*> The Extended 4 (ext4) filesystem
> [*] Ext4 extended attributes
> [*] Network File Systems --->
> <M> CIFS support (advanced network filesystem, SMBFS successor)
> -*- Native language support --->
> (iso8859-1) Default NLS Option
> <M> Japanese charsets (Shift-JIS, EUC-JP)
> <*> NLS ISO 8859-1 (Latin 1; Western European Languages)
> <M> NLS UTF-8
コンパイル
> # nohup make zImage modules modules_install &
> # jobs
> # disown %1
セルフコンパイルで時間が掛かるので終わるまで気長に待つ。
完了。
> # cp arch/arm/boot/zImage /boot/vmlinuz-3.2.65-orion5x
> # mv /boot/uImage.buffalo /boot/uImage.buffalo.old
> # cp arch/arm/boot/uImage /boot/uImage.buffalo
> # update-initramfs -c -k 3.2.65-orion5x -t
> update-initramfs: Generating /boot/initrd.img-3.2.65-orion5x
> flash-kernel: installing version 3.2.65-orion5x
> Generating kernel u-boot image... done.
> Installing new uImage.buffalo.
> Generating initramfs u-boot image... done.
> Installing new initrd.buffalo.
> # reboot
起動完了
起動はできたが、
> # mount -t jffs2 /dev/mtdblock1 /mnt/mtd
同じ。
ダメ。マウントできない。大量のエラーが出る症状も同じ。
なにがいけないのか分からない。
**クロスコンパイル
何度も作り直すと玄箱PROでは時間がかかるのでクロスコンパイル環境を準備する。
VMware Player 7.1.0にdebian-7.8.0-i386-netinst.isoをセットしてDebian 7.xを導入。
Intel PC上のVMware Player環境でarmel向けのクロスコンパイル環境を作成する。
■bintuilsをコンパイルしてインストールする
> # cd ~
> # apt-get install dpkg-dev
> # mkdir binutils
> # cd binutils
> # apt-get source binutils
> # apt-get build-dep binutils
> # cd binutils*
> # TARGET=armel dpkg-buildpackage -b -uc -us
> # cd ..
> # dpkg -i *.deb
■gccをコンパイルしてインストールする
> # cd ~
> # mkdir gcc
> # cd gcc
> # apt-get install xapt
> # apt-get source gcc-4.7
> # apt-get build-dep gcc-4.7
> # xapt -a armel -m libc6-dev
> # apt-get install binutils-multiarch
> # cd gcc-*
> # GCC_TARGET=armel dpkg-buildpackage -b -uc -us
> # cd ..
> # dpkg -i *.deb
■クロスコンパイル・チェック
> # cd ~
> # vi main.c
>
> #include <stdio.h>
> int main(int argc, char** argv)
> {
> printf( "Hello World\n" );
> return 0;
> }
>
> # arm-linux-gnueabi-gcc-4.7 -static -o main main.c
> # apt-get install qemu qemu-system
> # qemu-arm ./main
> Hello World
■リンク作成
> # ln -s /usr/bin/arm-linux-gnueabi-cpp-4.7 /usr/local/bin/arm-linux-gnueabi-cpp
> # ln -s /usr/bin/arm-linux-gnueabi-gcc-ar-4.7 /usr/local/bin/arm-linux-gnueabi-gcc-ar
> # ln -s /usr/bin/arm-linux-gnueabi-gccgo-4.7 /usr/local/bin/arm-linux-gnueabi-gccgo
> # ln -s /usr/bin/arm-linux-gnueabi-g++-4.7 /usr/local/bin/arm-linux-gnueabi-g++
> # ln -s /usr/bin/arm-linux-gnueabi-gcc-nm-4.7 /usr/local/bin/arm-linux-gnueabi-gcc-nm
> # ln -s /usr/bin/arm-linux-gnueabi-gcov-4.7 /usr/local/bin/arm-linux-gnueabi-gcov
> # ln -s /usr/bin/arm-linux-gnueabi-gcc-4.7 /usr/local/bin/arm-linux-gnueabi-gcc
> # ln -s /usr/bin/arm-linux-gnueabi-gcc-ranlib-4.7 /usr/local/bin/arm-linux-gnueabi-gcc-ranlib
> # ln -s /usr/bin/arm-linux-gnueabi-gfortran-4.7 /usr/local/bin/arm-linux-gnueabi-gfortran
■環境設定、準備
> # cd /opt
> # export ARCH=arm
> # export CROSS_COMPILE=arm-linux-gnueabi-
> # export INSTALL_MOD_PATH=/opt/kurobox_pro
> # export INSTALL_PATH=$INSTALL_MOD_PATH/boot
> # mkdir -p /opt/kurobox_pro/boot
> # wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.2.65.tar.gz
> # tar xvf linux-3.2.65.tar.gz
> # cd linux-3.2.65
> # vi Makefile
> VERSION = 3
> PATCHLEVEL = 2
> SUBLEVEL = 65
> EXTRAVERSION = -orion5x
EXTRAVERSIONに-orion5xを追記
> # vi arch/arm/boot/Makefile
> $(obj)/zImage: $(obj)/compressed/vmlinux FORCE
> $(call if_changed,objcopy)
> devio > foo 'wl 0xe3a01c05,4' 'wl 0xe38110e5,4'
> cat foo $(obj)/zImage > zImage.new
> mv zImage.new $(obj)/zImage
> rm foo
> @echo ' Kernel: $@ is ready'
> # apt-get install devio
> # apt-get install libncurses5-dev
■コンパイル
> # make mrproper
> # make orion5x_defconfig
> # cp .config /opt/kurobox_pro/boot/config-3.2.65-orion5x-default
> # make menuconfig
> # make zImage modules modules_install
> # cp arch/arm/boot/zImage /opt/kurobox_pro/boot/vmlinuz-3.2.65-orion5x
> # cp .config /opt/kurobox_pro/boot/config-3.2.65-orion5x
> # cd /opt/kurobox_pro
> # tar cjvf kurobox-kernel.tar.bz2 *
※configの内容は上のセルフコンパイルと同様
■展開(玄箱PRO側)
> # tar -C / -xjvf kurobox-kernel.tar.bz2
> # cd /boot
> # mv uImage.buffalo uImage.buffalo.old
> # mv initrd.buffalo initrd.buffalo.old
> # update-initramfs -c -k 3.2.65-orion5x
> update-initramfs: Generating /boot/initrd.img-3.2.65-orion5x
> flash-kernel: installing version 3.2.65-orion5x
> Generating kernel u-boot image... done.
> Installing new uImage.buffalo.
> Generating initramfs u-boot image... done.
> Installing new initrd.buffalo.
> # shutdown -r now
■起動
> Orion1 CPU = Low
>
> === KURO U-Boot. ===
> ** LOADER **
> ** KUROBOX BOARD: KURO_BOX LE (CFG_ENV_ADDR=fffff000)
>
>
> U-Boot 1.1.1 (Apr 10 2007 - 18:10:08) Marvell version: 1.12.1 - TINY
>
> DRAM CS[0] base 0x00000000 size 128MB
> DRAM Total size 128MB
> [256kB@fffc0000] Flash: 256 kB
> Addresses 20M - 0M are saved for the U-Boot usage.
> Mem malloc Initialization (20M - 16M): Done
> NAND: 256 MB
>
> Soc: 88F5182 A2
> CPU: ARM926 (Rev 0) running @ 500Mhz
> Orion 1 streaming disabled
> SysClock = 250Mhz , TClock = 166Mhz
>
>
> USB 0: host mode
> USB 1: host mode
> PCI 0: PCI Express Root Complex Interface
> PCI 1: Conventional PCI, speed = 33000000
> Net: egiga0 [PRIME]
> Using 88E1118 phy
> Found boot image
> hit any key to switch tftp boot.
> Hit any key to stop autoboot: 2 1 0
> <<system_bootend>>
> Hit any key to stop autoboot: 3 2 1 0
>
> Reset IDE:
> Marvell Serial ATA Adapter
> Integrated Sata device found
> Device 0: OK
> Model: Hitachi HTS542525K9SA00 Firm: BBFOC31P Ser#: 080422BB6F00WDDDBT6G
> Type: Hard Disk
> Supports 48-bit addressing
> Capacity: 238475.1 MB = 232.8 GB (488397168 x 512)
>
> Using device ide0, partition 1
>
> Loading from block device ide device 0, partition 1: Name: hda1
> Type: U-Boot File:/uImage.buffalo
>
> 1684112 bytes read
> Using device ide0, partition 1
>
> Loading from block device ide device 0, partition 1: Name: hda1
> Type: U-Boot File:/initrd.buffalo
>
> 1828423 bytes read
> <<stop_sound>>
> ## Booting image at 00100000 ...
> Image Name: kernel 3.2.65-orion5x
> Created: 2015-03-27 1:03:13 UTC
> Image Type: ARM Linux Kernel Image (uncompressed)
> Data Size: 1684048 Bytes = 1.6 MB
> Load Address: 00008000
> Entry Point: 00008000
> Verifying Checksum ... OK
> OK
> ## Loading Ramdisk Image at 02000000 ...
> Image Name: ramdisk 3.2.65-orion5x
> Created: 2015-03-27 1:03:13 UTC
> Image Type: ARM Linux RAMDisk Image (gzip compressed)
> Data Size: 1828359 Bytes = 1.7 MB
> Load Address: 00000000
> Entry Point: 00000000
> Verifying Checksum ... OK
>
> Starting kernel ...
>
> arg:console=ttyS0,115200
> Uncompressing Linux... done, booting the kernel.
> Linux version 3.2.65-orion5x (root@debian) (gcc version 4.7.2 (Debian 4.7.2-5) ) #4 PREEMPT Fri Mar 27 09:53:47 JST 2015
> CPU: Feroceon [41069260] revision 0 (ARMv5TEJ), cr=a0053177
> CPU: VIVT data cache, VIVT instruction cache
> Machine: Buffalo/Revogear Kurobox Pro
> Clearing invalid memory bank 0KB@0xffffffff
> Clearing invalid memory bank 0KB@0xffffffff
> Clearing invalid memory bank 0KB@0xffffffff
> Ignoring unrecognised tag 0x00000000
> Ignoring unrecognised tag 0x00000000
> Ignoring unrecognised tag 0x00000000
> Ignoring unrecognised tag 0x41000403
> Memory policy: ECC disabled, Data cache writeback
> Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
> Kernel command line: console=ttyS0,115200
> PID hash table entries: 512 (order: -1, 2048 bytes)
> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Memory: 128MB = 128MB total
> Memory: 123548k/123548k available, 7524k reserved, 0K highmem
> Virtual kernel memory layout:
> vector : 0xffff0000 - 0xffff1000 ( 4 kB)
> fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
> vmalloc : 0xc8800000 - 0xfd800000 ( 848 MB)
> lowmem : 0xc0000000 - 0xc8000000 ( 128 MB)
> modules : 0xbf000000 - 0xc0000000 ( 16 MB)
> .text : 0xc0008000 - 0xc0415368 (4149 kB)
> .init : 0xc0416000 - 0xc0439000 ( 140 kB)
> .data : 0xc043a000 - 0xc045b200 ( 133 kB)
> .bss : 0xc045b224 - 0xc0477164 ( 112 kB)
> SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
> NR_IRQS:64
> sched_clock: 32 bits at 166MHz, resolution 5ns, wraps every 25769ms
> Calibrating delay loop... 265.42 BogoMIPS (lpj=1327104)
> pid_max: default: 32768 minimum: 301
> Mount-cache hash table entries: 512
> CPU: Testing write buffer coherency: ok
> devtmpfs: initialized
> NET: Registered protocol family 16
> Orion ID: MV88F5182-A2. TCLK=166666667.
> Applying Orion-1/Orion-NAS PCIe config read transaction workaround
> PCI: bus0: Fast back to back transfers disabled
> bio: create slab <bio-0> at 0
> SCSI subsystem initialized
> usbcore: registered new interface driver usbfs
> usbcore: registered new interface driver hub
> usbcore: registered new device driver usb
> Switching to clocksource orion_clocksource
> NET: Registered protocol family 2
> IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
> TCP established hash table entries: 4096 (order: 3, 32768 bytes)
> TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
> TCP: Hash tables configured (established 4096 bind 4096)
> TCP reno registered
> UDP hash table entries: 256 (order: 0, 4096 bytes)
> UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
> NET: Registered protocol family 1
> RPC: Registered named UNIX socket transport module.
> RPC: Registered udp transport module.
> RPC: Registered tcp transport module.
> RPC: Registered tcp NFSv4.1 backchannel transport module.
> Trying to unpack rootfs image as initramfs...
> Freeing initrd memory: 1784K
> NetWinder Floating Point Emulator V0.97 (double precision)
> JFFS2 version 2.2. (NAND) c 2001-2006 Red Hat, Inc.
> msgmni has been set to 244
> io scheduler noop registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> mv_xor_shared mv_xor_shared.0: Marvell shared XOR driver
> mv_xor mv_xor.0: Marvell XOR: ( xor cpy )
> mv_xor mv_xor.1: Marvell XOR: ( xor fill cpy )
> Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
> serial8250.0: ttyS0 at MMIO 0xf1012000 (irq = 3) is a 16550A
> console [ttyS0] enabled
> serial8250.1: ttyS1 at MMIO 0xf1012100 (irq = 4) is a 16550A
> brd: module loaded
> loop: module loaded
> sata_mv sata_mv.0: slots 32 ports 2
> scsi0 : sata_mv
> scsi1 : sata_mv
> ata1: SATA max UDMA/133 irq 29
> ata2: SATA max UDMA/133 irq 29
> physmap platform flash device: 00040000 at f4000000
> Found: SST 39LF020
> physmap-flash.0: Found 1 x8 devices at 0x0 in 8-bit bank
> number of JEDEC chips: 1
> Generic platform RAM MTD, (c) 2004 Simtec Electronics
> NAND device: Manufacturer ID: 0x20, Chip ID: 0xda (ST Micro NAND 256MiB 3,3V 8-bit)
> Scanning device for bad blocks
> Bad eraseblock 854 at 0x000006ac0000
> Creating 3 MTD partitions on "orion_nand":
> 0x000000000000-0x000000400000 : "uImage"
> 0x000000400000-0x000004400000 : "rootfs"
> 0x000004400000-0x000010000000 : "extra"
> mv643xx_eth: MV-643xx 10/100/1000 ethernet driver version 1.4
> mv643xx_eth smi: probed
> mv643xx_eth_port mv643xx_eth_port.0: eth0: port 0 with MAC address 00:16:01:a4:c9:b9
> ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> orion-ehci orion-ehci.0: Marvell Orion EHCI
> orion-ehci orion-ehci.0: new USB bus registered, assigned bus number 1
> orion-ehci orion-ehci.0: irq 17, io mem 0xf1050000
> orion-ehci orion-ehci.0: USB 2.0 started, EHCI 1.00
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 1 port detected
> orion-ehci orion-ehci.1: Marvell Orion EHCI
> orion-ehci orion-ehci.1: new USB bus registered, assigned bus number 2
> orion-ehci orion-ehci.1: irq 12, io mem 0xf10a0000
> orion-ehci orion-ehci.1: USB 2.0 started, EHCI 1.00
> hub 2-0:1.0: USB hub found
> hub 2-0:1.0: 1 port detected
> usbcore: registered new interface driver usblp
> Initializing USB Mass Storage driver...
> usbcore: registered new interface driver usb-storage
> USB Mass Storage support registered.
> usbcore: registered new interface driver ums-datafab
> usbcore: registered new interface driver ums-freecom
> usbcore: registered new interface driver ums-jumpshot
> usbcore: registered new interface driver ums-sddr09
> usbcore: registered new interface driver ums-sddr55
> i2c /dev entries driver
> rtc-rs5c372 0-0032: rs5c372a found, 24hr, driver version 0.6
> rtc-rs5c372 0-0032: rtc core: registered rtc-rs5c372 as rtc0
> usbcore: registered new interface driver usbhid
> usbhid: USB HID core driver
> oprofile: hardware counters not available
> oprofile: using timer interrupt.
> TCP cubic registered
> NET: Registered protocol family 17
> VFP support v0.3: not present
> rtc-rs5c372 0-0032: setting system clock to 2015-03-27 01:03:50 UTC (1427418230)
> ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> ata1.00: ATA-8: Hitachi HTS542525K9SA00, BBFOC31P, max UDMA/133
> ata1.00: 488397168 sectors, multi 0: LBA48 NCQ (depth 31/32)
> ata1.00: configured for UDMA/133
> scsi 0:0:0:0: Direct-Access ATA Hitachi HTS54252 BBFO PQ: 0 ANSI: 5
> sd 0:0:0:0: [sda] 488397168 512-byte logical blocks: (250 GB/232 GiB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> ata2: SATA link down (SStatus 0 SControl 300)
> sda: sda1 sda2 sda3 < sda5 > sda4
> sd 0:0:0:0: [sda] Attached SCSI disk
> Freeing init memory: 140K
> Loading, please wait...
> udevd[457]: starting version 175
> Begin: Loading essential drivers ... modprobe: module platform:sata_mv not found in modules.dep
> done.
> Begin: Running /scripts/init-premount ... done.
> Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
> Begin: Running /scripts/local-premount ... done.
> EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null)
> Begin: Running /scripts/local-bottom ... done.
> done.
> Begin: Running /scripts/init-bottom ... done.
> INIT: version 2.88 booting
> [info] Using makefile-style concurrent boot in runlevel S.
> [....] Starting the hotplug events dispatcher: udevdudevd[658]: starting version 175
> [ ok .
> [....] Synthesizing the initial hotplug events...[ ok done.
> [....] Waiting for /dev to be fully populated...[ ok done.
> [....] Activating swap...Adding 365564k swap on /dev/sda5. Priority:-1 extents:1 across:365564k
> [ ok done.
> EXT4-fs (sda2): re-mounted. Opts: (null)
> [....] Checking root file system...fsck from util-linux 2.20.1
> /dev/sda2: clean, 33480/1310720 files, 355119/5242880 blocks
> [ ok done.
> EXT4-fs (sda2): re-mounted. Opts: errors=remount-ro
> [....] Cleaning up temporary files... /tmp[ ok .
> [....] Activating lvm and md swap...[ ok done.
> [....] Checking file systems...fsck from util-linux 2.20.1
> /dev/sda4: clean, 142666/13918208 files, 34355865/55652608 blocks
> /dev/sda1: clean, 29/124496 files, 38315/248832 blocks
> [ ok done.
> [....] Mounting local filesystems...EXT4-fs (sda4): mounted filesystem with ordered data mode. Opts: (null)
> [ ok done.
> [....] Activating swapfile swap...[ ok done.
> [....] Cleaning up temporary files...[ ok .
> [....] Setting kernel variables ...[ ok done.
> [....] Configuring network interfaces...[ ok done.
> [....] Starting rpcbind daemon...rpcbind: cannot create socket for udp6
> rpcbind: cannot create socket for tcp6
> [ ok .
> [....] Starting NFS common utilities: statd idmapd[ ok .
> [....] Cleaning up temporary files...mv643xx_eth_port mv643xx_eth_port.0: eth0: link up, 100 Mb/s, full duplex, flow control disabled
> [ ok .
> [....] Setting up X socket directories... /tmp/.X11-unix /tmp/.ICE-unix[ ok .
> INIT: Entering runlevel: 2
> [info] Using makefile-style concurrent boot in runlevel 2.
> [....] Starting rpcbind daemon...[....] Already running.[ ok .
> [....] Starting NFS common utilities: statd idmapd[ ok .
> [....] Starting enhanced syslogd: rsyslogd[ ok .
> [....] Starting deferred execution scheduler: atd[ ok .
> [....] Starting periodic command scheduler: cron[ ok .
> [....] Starting system message bus: dbus[ ok .
> [....] Starting MTA: exim4[ ok .
> ALERT: exim paniclog /var/log/exim4/paniclog has non-zero size, mail system possibly broken
> [....] Starting Daemon for Linkstation/Kuro micro controller: micro-evtd[ ok .
> [....] Starting Samba daemons: nmbd smbd[ ok .
> [....] Starting OpenBSD Secure Shell server: sshd[ ok .
>
> Debian GNU/Linux 7 KUROBOX-PRO ttyS0
>
> KUROBOX-PRO login: root
> Password:
> Last login: Fri Mar 27 11:05:45 JST 2015 on ttyS0
> Linux KUROBOX-PRO 3.2.65-orion5x #4 PREEMPT Fri Mar 27 09:53:47 JST 2015 armv5tel
>
> The programs included with the Debian GNU/Linux system are free software;
> the exact distribution terms for each program are described in the
> individual files in /usr/share/doc/*/copyright.
>
> Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
> permitted by applicable law.
> KUROBOX-PRO:~# mount /dev/mtdblock2 /mnt/mtd
だめ
> KUROBOX-PRO:~# mount -t jffs2 /dev/mtdblock2 /mnt/mtd
これもだめ
カーネル変えても変わらない
