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h1. Raspbian GNU/Linux on Raspberry Pi

h2. serial consoleのpin配置

よく忘れるのでserial console接続のためのpin配置の以下にメモ。他の詳細は"こちら":http://elinux.org/RPi_Low-level_peripherals を見ること。

* pin6: GND

* pin8: TXD

* pin10: RXS

h2. boot時のconsole出力

モデルはB。B+じゃありません。

<pre>

Uncompressing Linux... done, booting the kernel.

[    0.000000] Booting Linux on physical CPU 0x0

[    0.000000] Initializing cgroup subsys cpu

[    0.000000] Initializing cgroup subsys cpuacct

[    0.000000] Linux version 3.10.25+ (dc4@dc4-arm-01) (gcc version 4.7.2 20120731 (prerelease) (crosstool-NG linaro-1.13.1+bzr2458 - Linaro GCC 2012.08) ) #622 PREEMPT Fri Jan 3 18:41:00 GMT 2014

[    0.000000] CPU: ARMv6-compatible processor [410fb767] revision 7 (ARMv7), cr=00c5387d

[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache

[    0.000000] Machine: BCM2708

[    0.000000] cma: CMA: reserved 16 MiB at 1b000000

[    0.000000] Memory policy: ECC disabled, Data cache writeback

[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 113792

[    0.000000] Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708.boardrev=0xe bcm2708.serial=0x636080e2 smsc95xx.macaddr=B8:27:EB:60:80:E2 sdhci-bcm2708.emmc_clock_freq=250000000 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000  dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait

[    0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)

[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)

[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)

[    0.000000] Memory: 448MB = 448MB total

[    0.000000] Memory: 431652k/431652k available, 27100k reserved, 0K highmem

[    0.000000] Virtual kernel memory layout:

[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)

[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)

[    0.000000]     vmalloc : 0xdc800000 - 0xff000000   ( 552 MB)

[    0.000000]     lowmem  : 0xc0000000 - 0xdc000000   ( 448 MB)

[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)

[    0.000000]       .text : 0xc0008000 - 0xc05727b4   (5546 kB)

[    0.000000]       .init : 0xc0573000 - 0xc0597424   ( 146 kB)

[    0.000000]       .data : 0xc0598000 - 0xc05d0870   ( 227 kB)

[    0.000000]        .bss : 0xc05d0870 - 0xc067c3e0   ( 687 kB)

[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1

[    0.000000] Preemptible hierarchical RCU implementation.

[    0.000000] NR_IRQS:330

[    0.000000] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 4294967ms

[    0.000000] Switching to timer-based delay loop

[    0.000000] Console: colour dummy device 80x30

[    0.000000] console [tty1] enabled

[    0.001180] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=10000)

[    0.001248] pid_max: default: 32768 minimum: 301

[    0.001719] Mount-cache hash table entries: 512

[    0.002524] Initializing cgroup subsys memory

[    0.002636] Initializing cgroup subsys devices

[    0.002677] Initializing cgroup subsys freezer

[    0.002712] Initializing cgroup subsys blkio

[    0.002872] CPU: Testing write buffer coherency: ok

[    0.003349] Setting up static identity map for 0xc0406048 - 0xc04060a4

[    0.005184] devtmpfs: initialized

[    0.019574] NET: Registered protocol family 16

[    0.025519] DMA: preallocated 4096 KiB pool for atomic coherent allocations

[    0.026638] bcm2708.uart_clock = 0

[    0.028368] hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.

[    0.028423] hw-breakpoint: maximum watchpoint size is 4 bytes.

[    0.028463] mailbox: Broadcom VideoCore Mailbox driver

[    0.028563] bcm2708_vcio: mailbox at f200b880

[    0.028672] bcm_power: Broadcom power driver

[    0.028713] bcm_power_open() -> 0

[    0.028741] bcm_power_request(0, 8)

[    0.529460] bcm_mailbox_read -> 00000080, 0

[    0.529504] bcm_power_request -> 0

[    0.529731] Serial: AMBA PL011 UART driver

[    0.529893] dev:f1: ttyAMA0 at MMIO 0x20201000 (irq = 83) is a PL011 rev3

[    0.872025] console [ttyAMA0] enabled

[    0.897974] bio: create slab <bio-0> at 0

[    0.903298] SCSI subsystem initialized

[    0.907272] usbcore: registered new interface driver usbfs

[    0.912991] usbcore: registered new interface driver hub

[    0.918567] usbcore: registered new device driver usb

[    0.925161] Switching to clocksource stc

[    0.929503] FS-Cache: Loaded

[    0.932678] CacheFiles: Loaded

[    0.948452] NET: Registered protocol family 2

[    0.953873] TCP established hash table entries: 4096 (order: 3, 32768 bytes)

[    0.961140] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)

[    0.967665] TCP: Hash tables configured (established 4096 bind 4096)

[    0.974140] TCP: reno registered

[    0.977399] UDP hash table entries: 256 (order: 0, 4096 bytes)

[    0.983309] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

[    0.990053] NET: Registered protocol family 1

[    0.994979] RPC: Registered named UNIX socket transport module.

[    1.001042] RPC: Registered udp transport module.

[    1.005769] RPC: Registered tcp transport module.

[    1.010520] RPC: Registered tcp NFSv4.1 backchannel transport module.

[    1.017866] bcm2708_dma: DMA manager at f2007000

[    1.022684] bcm2708_gpio: bcm2708_gpio_probe c05a5e50

[    1.028138] vc-mem: phys_addr:0x00000000 mem_base=0x1ec00000 mem_size:0x20000000(512 MiB)

[    1.037528] audit: initializing netlink socket (disabled)

[    1.043205] type=2000 audit(0.890:1): initialized

[    1.205009] VFS: Disk quotas dquot_6.5.2

[    1.209410] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)

[    1.218261] FS-Cache: Netfs 'nfs' registered for caching

[    1.224995] NFS: Registering the id_resolver key type

[    1.230286] Key type id_resolver registered

[    1.234499] Key type id_legacy registered

[    1.239320] msgmni has been set to 875

[    1.245190] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)

[    1.253041] io scheduler noop registered

[    1.257003] io scheduler deadline registered (default)

[    1.262592] io scheduler cfq registered

[    1.266735] bcm2708_fb_debugfs_init: could not create debugfs entry

[    1.274316] BCM2708FB: allocated DMA memory 5b400000

[    1.279473] BCM2708FB: allocated DMA channel 0 @ f2007000

[    1.305843] Console: switching to colour frame buffer device 82x26

[    1.316007] uart-pl011 dev:f1: no DMA platform data

[    1.322416] kgdb: Registered I/O driver kgdboc.

[    1.328968] vc-cma: Videocore CMA driver

[    1.334317] vc-cma: vc_cma_base      = 0x00000000

[    1.340420] vc-cma: vc_cma_size      = 0x00000000 (0 MiB)

[    1.347108] vc-cma: vc_cma_initial   = 0x00000000 (0 MiB)

[    1.363130] brd: module loaded

[    1.372749] loop: module loaded

[    1.377436] vchiq: vchiq_init_state: slot_zero = 0xdb000000, is_master = 0

[    1.386569] Loading iSCSI transport class v2.0-870.

[    1.394003] usbcore: registered new interface driver smsc95xx

[    1.401562] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)

[    1.608802] Core Release: 2.80a

[    1.613299] Setting default values for core params

[    1.619389] Finished setting default values for core params

[    1.826255] Using Buffer DMA mode

[    1.830883] Periodic Transfer Interrupt Enhancement - disabled

[    1.837979] Multiprocessor Interrupt Enhancement - disabled

[    1.844818] OTG VER PARAM: 0, OTG VER FLAG: 0

[    1.850481] Dedicated Tx FIFOs mode

[    1.856022] dwc_otg bcm2708_usb: DWC OTG Controller

[    1.862308] dwc_otg bcm2708_usb: new USB bus registered, assigned bus number 1

[    1.870922] dwc_otg bcm2708_usb: irq 32, io mem 0x00000000

[    1.877706] Init: Port Power? op_state=1

[    1.882993] Init: Power Port (0)

[    1.887627] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002

[    1.895839] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[    1.904473] usb usb1: Product: DWC OTG Controller

[    1.910585] usb usb1: Manufacturer: Linux 3.10.25+ dwc_otg_hcd

[    1.917787] usb usb1: SerialNumber: bcm2708_usb

[    1.924466] hub 1-0:1.0: USB hub found

[    1.929678] hub 1-0:1.0: 1 port detected

[    1.935744] usbcore: registered new interface driver usb-storage

[    1.943558] mousedev: PS/2 mouse device common for all mice

[    1.951200] bcm2835-cpufreq: min=700000 max=700000 cur=700000

[    1.958407] bcm2835-cpufreq: switching to governor powersave

[    1.965463] bcm2835-cpufreq: switching to governor powersave

[    1.972430] cpuidle: using governor ladder

[    1.977750] cpuidle: using governor menu

[    1.982941] sdhci: Secure Digital Host Controller Interface driver

[    1.990408] sdhci: Copyright(c) Pierre Ossman

[    1.996054] sdhci: Enable low-latency mode

[    2.039195] mmc0: SDHCI controller on BCM2708_Arasan [platform] using platform's DMA

[    2.049680] mmc0: BCM2708 SDHC host at 0x20300000 DMA 2 IRQ 77

[    2.056926] sdhci-pltfm: SDHCI platform and OF driver helper

[    2.064080] ledtrig-cpu: registered to indicate activity on CPUs

[    2.073670] hidraw: raw HID events driver (C) Jiri Kosina

[    2.088019] usbcore: registered new interface driver usbhid

[    2.095061] usbhid: USB HID core driver

[    2.104908] TCP: cubic registered

[    2.111661] Initializing XFRM netlink socket

[    2.119382] NET: Registered protocol family 17

[    2.125361] Key type dns_resolver registered

[    2.134321] Indeed it is in host mode hprt0 = 00021501

[    2.141310] VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5

[    2.169971] registered taskstats version 1

[    2.179574] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)

[    2.199552] Waiting for root device /dev/mmcblk0p2...

[    2.211339] mmc0: read SD Status register (SSR) after 2 attempts

[    2.239232] mmc0: new high speed SDHC card at address 59b4

[    2.258880] mmcblk0: mmc0:59b4 SDU1  29.9 GiB 

[    2.266527]  mmcblk0: p1 p2

[    2.329467] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)

[    2.340627] VFS: Mounted root (ext4 filesystem) on device 179:2.

[    2.351521] devtmpfs: mounted

[    2.356431] Freeing unused kernel memory: 144K (c0573000 - c0597000)

[    2.369249] usb 1-1: new high-speed USB device number 2 using dwc_otg

[    2.377422] Indeed it is in host mode hprt0 = 00001101

[    2.580056] usb 1-1: New USB device found, idVendor=0424, idProduct=9514

[    2.588466] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0

[    2.601922] hub 1-1:1.0: USB hub found

[    2.607674] hub 1-1:1.0: 5 ports detected

[    2.889475] usb 1-1.1: new high-speed USB device number 3 using dwc_otg

[    3.000089] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00

[    3.008642] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0

[    3.036072] smsc95xx v1.0.4

[    3.105040] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:60:80:e2

[    3.923739] udevd[156]: starting version 175

[    5.900469] bcm2708-i2s bcm2708-i2s.0: Failed to create debugfs directory

[    9.284667] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)

[    9.754429] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)

[   15.404045] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.

??

Raspbian GNU/Linux 7 raspberrypi ttyAMA0

raspberrypi login: 

</pre>

h2. build-in login account

* login: pi

" password: raspberry