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Yocto Linux を Raspberry Pi3 で動かしてオレオレゲーム機を作りたい
Background
ここ最近 Windows や Linux をベースにした携帯ゲーム機が増えている。特に中国メーカーからは小さめのゲーム機も出ているので、それらに自分のビルドした Linux が動かせたりしないかと思ったりするので、まずは Raspberry Pi で練習してみたい。
- https://jp.anbernic.com/products/rg35xx
- https://www.steamdeck.com
- https://rog.asus.com/jp/gaming-handhelds/rog-ally/rog-ally-2023/
用意したもの
- Raspberry Pi 3B+
- 適当な microSD カードとリーダ
- Raspberry Pi に接続する UART ケーブル等
- https://www.switch-science.com/products/9336
- あるいは Raspberry Pi Debug Probe
- Ubuntu 24.04 (ホスト PC)
- ※ Ubuntu 24.04 では Ubuntu 24.04 で Yocto Linux がビルドコケる問題 (proc/self/uid_map に書き込めない) がある。
やること
基本は以下の記載の通り進めていく
Yocto Linux のビルド
パッケージなどをインストールする
(※libegl1-mesa は現在存在しないようだ)
$ sudo apt install gawk wget git diffstat unzip texinfo gcc build-essential chrpath socat cpio python3 python3-pip python3-pexpect xz-utils debianutils iputils-ping python3-git python3-jinja2 libsdl1.2-dev python3-subunit mesa-common-dev zstd liblz4-tool file locales libacl1
$ sudo locale-gen en_US.UTF-8
poky を clone
ここでは nanbield ブランチを利用
$ git clone git://git.yoctoproject.org/poky
$ cd poky
$ git checkout -t origin/nanbield -b my-nanbield
Raspberry Pi BSP および OpenEmbedded BSP をクローン
$ git clone -b nanbield git://git.yoctoproject.org/meta-raspberrypi
$ git clone -b nanbield git://git.openembedded.org/meta-openembedded
ビルド環境設定
$ source oe-init-build-env pi-build
bblayers.conf の BBLAYERS に先程クローンしたフォルダを追加
bblayers.conf
# POKY_BBLAYERS_CONF_VERSION is increased each time build/conf/bblayers.conf
# changes incompatibly
POKY_BBLAYERS_CONF_VERSION = "2"
BBPATH = "${TOPDIR}"
BBFILES ?= ""
BBLAYERS ?= " \
/home/tomoki/poky/meta \
/home/tomoki/poky/meta-poky \
/home/tomoki/poky/meta-yocto-bsp \
/home/tomoki/poky/meta-raspberrypi \
/home/tomoki/poky/meta-openembedded/meta-oe \
"
local.conf のターゲットマシンを変更し、 UART も有効化する。
local.conf
MACHINE ?= "raspberrypi3-64"
ENABLE_UART = "1"
bitbake core-image-minimal
エミュレータでの確認
TBD, runqemu できるはずだけど以下のエラーで失敗している。
$ runqemu
runqemu - INFO - Running bitbake -e ...
ls: cannot access '/home/tomoki/poky/pi-build/tmp/deploy/images/raspberrypi3-64/*.qemuboot.conf': No such file or directory
runqemu - ERROR - Command 'ls -t /home/tomoki/poky/pi-build/tmp/deploy/images/raspberrypi3-64/*.qemuboot.conf' returned non-zero exit status 2.
runqemu - INFO - Cleaning up
runqemu - INFO - Host uptime: 13343.51
MicroSD カードへの書き込み
書き込みに必要な bmap-tools をインストールし、
$ sudo apt install bmap-tools
gparted などで microSD カードがどの sdX かを確認し、 umount
$ sudo umount /dev/sdc1
$ sudo umount /dev/sdc2
$ sudo bmaptool copy tmp/deploy/images/raspberrypi3-64/core-image-minimal-raspberrypi3-64.rootfs.wic.bz2 /dev/sdX
UART 接続
手元の Ubuntu 24.04 では UART は /dev/ttyUSB0 として認識されている。
$ ls -al /dev
crw-rw---- 1 root dialout 188, 0 May 1 18:34 ttyUSB0
minicom をインストールする。
$ sudo apt install minicom
ユーザを dialout グループにいれる。 (参考: [小ネタ]Ubuntu でttyUSB0(USBシリアル変換)が権限関連で使えない場合の対処方法 #Ubuntu - Qiita)
$ sudo adduser $USER dialout
$ groups $USER
tomoki : tomoki adm tty dialout cdrom sudo dip plugdev users lpadmin
$ minicom -D /dev/ttyUSB0
Raspberry Pi の電源を抜き差しして以下のようなログが出たら成功。
[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[ 0.000000] Linux version 6.1.61-v8 (oe-user@oe-host) (aarch64-poky-linux-gcc (GCC) 13.2.0, GNU ld (GNU Binutils) 2.41.0.20231213) #1 SMP PREEMPT Thu Nov 9 14:54:02 UTC 2023
[ 0.000000] random: crng init done
[ 0.000000] Machine model: Raspberry Pi 3 Model B Plus Rev 1.3
[ 0.000000] efi: UEFI not found.
[ 0.000000] Reserved memory: created CMA memory pool at 0x000000001ec00000, size 256 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000000000-0x000000003b3fffff]
[ 0.000000] DMA32 empty
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x000000003b3fffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x000000003b3fffff]
[ 0.000000] On node 0, zone DMA: 19456 pages in unavailable ranges
[ 0.000000] percpu: Embedded 28 pages/cpu s75816 r8192 d30680 u114688
[ 0.000000] Detected VIPT I-cache on CPU0
[ 0.000000] CPU features: kernel page table isolation forced ON by KASLR
[ 0.000000] CPU features: detected: Kernel page table isolation (KPTI)
[ 0.000000] CPU features: detected: ARM erratum 843419
[ 0.000000] CPU features: detected: ARM erratum 845719
[ 0.000000] alternatives: applying boot alternatives
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 238896
[ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_headphones=0 snd_bcm2835.enable_headphones=1 snd_bcm2835.enable_hdmi=1 clk_ignore_unused video=Composite-1:720x480@60i vc_mem.mt
[ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
[ 0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off
[ 0.000000] Memory: 664752K/970752K available (12096K kernel code, 2046K rwdata, 3992K rodata, 4032K init, 1015K bss, 43856K reserved, 262144K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 39123 entries in 153 pages
[ 0.000000] ftrace: allocated 153 pages with 4 groups
[ 0.000000] trace event string verifier disabled
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU event tracing is enabled.
[ 0.000000] Trampoline variant of Tasks RCU enabled.
[ 0.000000] Rude variant of Tasks RCU enabled.
[ 0.000000] Tracing variant of Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies.
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] Root IRQ handler: bcm2836_arm_irqchip_handle_irq
[ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[ 0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
[ 0.000001] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
[ 0.000374] Console: colour dummy device 80x25
[ 0.000454] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=19200)
[ 0.000489] pid_max: default: 32768 minimum: 301
[ 0.000662] LSM: Security Framework initializing
[ 0.000966] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.001002] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.002705] cgroup: Disabling memory control group subsystem
[ 0.005498] cblist_init_generic: Setting adjustable number of callback queues.
[ 0.005517] cblist_init_generic: Setting shift to 2 and lim to 1.
[ 0.005743] cblist_init_generic: Setting adjustable number of callback queues.
[ 0.005760] cblist_init_generic: Setting shift to 2 and lim to 1.
[ 0.006003] cblist_init_generic: Setting adjustable number of callback queues.
[ 0.006019] cblist_init_generic: Setting shift to 2 and lim to 1.
[ 0.006570] rcu: Hierarchical SRCU implementation.
[ 0.006585] rcu: Max phase no-delay instances is 400.
[ 0.007801] EFI services will not be available.
[ 0.008476] smp: Bringing up secondary CPUs ...
[ 0.009835] Detected VIPT I-cache on CPU1
[ 0.010001] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[ 0.012259] Detected VIPT I-cache on CPU2
[ 0.012411] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[ 0.014472] Detected VIPT I-cache on CPU3
[ 0.014614] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[ 0.015422] smp: Brought up 1 node, 4 CPUs
[ 0.015442] SMP: Total of 4 processors activated.
[ 0.015459] CPU features: detected: 32-bit EL0 Support
[ 0.015474] CPU features: detected: CRC32 instructions
[ 0.015640] CPU: All CPU(s) started at EL2
[ 0.015655] alternatives: applying system-wide alternatives
[ 0.017930] devtmpfs: initialized
[ 0.036169] Enabled cp15_barrier support
[ 0.036210] Enabled setend support
[ 0.036663] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[ 0.036704] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[ 0.048503] pinctrl core: initialized pinctrl subsystem
[ 0.049668] DMI not present or invalid.
[ 0.050302] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[ 0.059578] DMA: preallocated 1024 KiB GFP_KERNEL pool for atomic allocations
[ 0.060300] DMA: preallocated 1024 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[ 0.061655] DMA: preallocated 1024 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[ 0.061788] audit: initializing netlink subsys (disabled)
[ 0.062177] audit: type=2000 audit(0.060:1): state=initialized audit_enabled=0 res=1
[ 0.062995] thermal_sys: Registered thermal governor 'step_wise'
[ 0.063115] cpuidle: using governor menu
[ 0.063446] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[ 0.063709] ASID allocator initialised with 32768 entries
[ 0.063943] Serial: AMBA PL011 UART driver
[ 0.076543] bcm2835-mbox 3f00b880.mailbox: mailbox enabled
[ 0.087055] raspberrypi-firmware soc:firmware: Attached to firmware from 2023-05-09T12:17:54, variant start
[ 0.088051] raspberrypi-firmware soc:firmware: Firmware hash is 30aa0d70ab280427ba04ebc718c81d4350b9d394
[ 0.095820] KASLR enabled
[ 0.132065] bcm2835-dma 3f007000.dma: DMA legacy API manager, dmachans=0x1
[ 0.137810] SCSI subsystem initialized
[ 0.138112] usbcore: registered new interface driver usbfs
[ 0.138187] usbcore: registered new interface driver hub
[ 0.138290] usbcore: registered new device driver usb
[ 0.138764] usb_phy_generic phy: supply vcc not found, using dummy regulator
[ 0.139456] pps_core: LinuxPPS API ver. 1 registered
[ 0.139472] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.139508] PTP clock support registered
[ 0.139872] Advanced Linux Sound Architecture Driver Initialized.
[ 0.141600] clocksource: Switched to clocksource arch_sys_counter
[ 0.142245] VFS: Disk quotas dquot_6.6.0
[ 0.142402] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.142669] FS-Cache: Loaded
[ 0.142956] CacheFiles: Loaded
[ 0.156845] NET: Registered PF_INET protocol family
[ 0.157253] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 0.159524] tcp_listen_portaddr_hash hash table entries: 512 (order: 1, 8192 bytes, linear)
[ 0.159590] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.159717] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 0.159848] TCP bind hash table entries: 8192 (order: 6, 262144 bytes, linear)
[ 0.160217] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.160644] MPTCP token hash table entries: 1024 (order: 2, 24576 bytes, linear)
[ 0.160738] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 0.160798] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 0.161067] NET: Registered PF_UNIX/PF_LOCAL protocol family
[ 0.161966] RPC: Registered named UNIX socket transport module.
[ 0.161984] RPC: Registered udp transport module.
[ 0.161998] RPC: Registered tcp transport module.
[ 0.162012] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.164206] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[ 1.837980] Initialise system trusted keyrings
[ 1.838623] workingset: timestamp_bits=46 max_order=18 bucket_order=0
[ 1.848199] zbud: loaded
[ 1.852019] NFS: Registering the id_resolver key type
[ 1.852068] Key type id_resolver registered
[ 1.852084] Key type id_legacy registered
[ 1.852226] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 1.852247] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[ 1.853997] Key type asymmetric registered
[ 1.854020] Asymmetric key parser 'x509' registered
[ 1.854122] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[ 1.854144] io scheduler mq-deadline registered
[ 1.854162] io scheduler kyber registered
[ 1.863193] simple-framebuffer 3eaa9000.framebuffer: framebuffer at 0x3eaa9000, 0x151800 bytes
[ 1.863227] simple-framebuffer 3eaa9000.framebuffer: format=a8r8g8b8, mode=720x480x32, linelength=2880
[ 1.866996] Console: switching to colour frame buffer device 90x30
[ 1.870110] simple-framebuffer 3eaa9000.framebuffer: fb0: simplefb registered!
[ 1.876003] Serial: 8250/16550 driver, 1 ports, IRQ sharing enabled
[ 1.879185] bcm2835-rng 3f104000.rng: hwrng registered
[ 1.880035] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[ 1.889746] Console: switching to colour dummy device 80x25
[ 1.891240] vc4-drm soc:gpu: bound 3f600000.firmwarekms (ops vc4_fkms_ops)
[ 1.891471] vc4-drm soc:gpu: bound 3fc00000.v3d (ops vc4_v3d_ops)
[ 1.893000] [drm] Initialized vc4 0.0.0 20140616 for soc:gpu on minor 0
[ 1.950414] Console: switching to colour frame buffer device 90x30
[ 1.967238] vc4-drm soc:gpu: [drm] fb0: vc4drmfb frame buffer device
[ 1.984747] brd: module loaded
[ 1.994933] loop: module loaded
[ 1.995884] Loading iSCSI transport class v2.0-870.
[ 1.997972] usbcore: registered new interface driver lan78xx
[ 1.998062] usbcore: registered new interface driver smsc95xx
[ 1.998099] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[ 2.726731] Core Release: 2.80a
[ 2.726765] Setting default values for core params
[ 2.726795] Finished setting default values for core params
[ 2.927250] Using Buffer DMA mode
[ 2.927264] Periodic Transfer Interrupt Enhancement - disabled
[ 2.927280] Multiprocessor Interrupt Enhancement - disabled
[ 2.927294] OTG VER PARAM: 0, OTG VER FLAG: 0
[ 2.927314] Dedicated Tx FIFOs mode
[ 2.927882]
[ 2.927896] WARN::dwc_otg_hcd_init:1072: FIQ DMA bounce buffers: virt = ffffffc008461000 dma = 0x00000000df0ac000 len=9024
[ 2.927937] FIQ FSM acceleration enabled for :
[ 2.927937] Non-periodic Split Transactions
[ 2.927937] Periodic Split Transactions
[ 2.927937] High-Speed Isochronous Endpoints
[ 2.927937] Interrupt/Control Split Transaction hack enabled
[ 2.928008]
[ 2.928021] WARN::hcd_init_fiq:496: MPHI regs_base at ffffffc00806d000
[ 2.928069] dwc_otg 3f980000.usb: DWC OTG Controller
[ 2.928121] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1
[ 2.928184] dwc_otg 3f980000.usb: irq 74, io mem 0x00000000
[ 2.928242] Init: Port Power? op_state=1
[ 2.928256] Init: Power Port (0)
[ 2.928768] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 6.01
[ 2.928794] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.928816] usb usb1: Product: DWC OTG Controller
[ 2.928834] usb usb1: Manufacturer: Linux 6.1.61-v8 dwc_otg_hcd
[ 2.928853] usb usb1: SerialNumber: 3f980000.usb
[ 2.929905] hub 1-0:1.0: USB hub found
[ 2.929991] hub 1-0:1.0: 1 port detected
[ 2.932314] usbcore: registered new interface driver usb-storage
[ 2.938691] sdhci: Secure Digital Host Controller Interface driver
[ 2.938712] sdhci: Copyright(c) Pierre Ossman
[ 2.939375] sdhci-pltfm: SDHCI platform and OF driver helper
[ 2.942364] ledtrig-cpu: registered to indicate activity on CPUs
[ 2.942665] hid: raw HID events driver (C) Jiri Kosina
[ 2.942781] usbcore: registered new interface driver usbhid
[ 2.942788] usbhid: USB HID core driver
[ 2.947923] Initializing XFRM netlink socket
[ 2.947972] NET: Registered PF_PACKET protocol family
[ 2.948056] Key type dns_resolver registered
[ 2.948833] registered taskstats version 1
[ 2.948884] Loading compiled-in X.509 certificates
[ 2.949475] Key type .fscrypt registered
[ 2.949483] Key type fscrypt-provisioning registered
[ 2.958841] uart-pl011 3f201000.serial: cts_event_workaround enabled
[ 2.958969] 3f201000.serial: ttyAMA1 at MMIO 0x3f201000 (irq = 99, base_baud = 0) is a PL011 rev2
[ 2.959138] serial serial0: tty port ttyAMA1 registered
[ 2.961506] bcm2835-aux-uart 3f215040.serial: there is not valid maps for state default
[ 2.961994] printk: console [ttyS0] disabled
[ 2.962071] 3f215040.serial: ttyS0 at MMIO 0x3f215040 (irq = 71, base_baud = 50000000) is a 16550
[ 3.033695] Indeed it is in host mode hprt0 = 00021501
[ 3.035892] printk: console [ttyS0] enabled
[ 3.215592] usb 1-1: new high-speed USB device number 2 using dwc_otg
[ 3.217647] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[ 3.235545] Indeed it is in host mode hprt0 = 00001101
[ 3.242790] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[ 3.471034] usb 1-1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3
[ 3.478517] mmc-bcm2835 3f300000.mmcnr: mmc_debug:0 mmc_debug2:0
[ 3.484255] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.492199] mmc-bcm2835 3f300000.mmcnr: DMA channel allocated
[ 3.518249] sdhost: log_buf @ 0000000004687b3c (c3125000)
[ 3.530839] hub 1-1:1.0: USB hub found
[ 3.602352] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
[ 3.626531] hub 1-1:1.0: 4 ports detected
[ 3.635136] of_cfs_init
[ 3.678522] mmc0: host does not support reading read-only switch, assuming write-enable
[ 3.686465] of_cfs_init: OK
[ 3.721626] mmc0: new high speed SDXC card at address 0001
[ 3.762670] clk: Not disabling unused clocks
[ 3.769478] mmcblk0: mmc0:0001 ED4QT 119 GiB
[ 3.771372] ALSA device list:
[ 3.780986] mmcblk0: p1 p2
[ 3.784808] No soundcards found.
[ 3.792021] mmcblk0: mmc0:0001 ED4QT 119 GiB
[ 4.161623] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[ 4.352513] EXT4-fs (mmcblk0p2): orphan cleanup on readonly fs
[ 4.358528] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Quota mode: none.
[ 4.367319] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[ 4.375056] devtmpfs: mounted
[ 4.384471] Freeing unused kernel memory: 4032K
[ 4.389242] Run /sbin/init as init process
[ 4.404790] mmc1: new high speed SDIO card at address 0001
[ 4.431201] usb 1-1.1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3
[ 4.439756] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.448249] hub 1-1.1:1.0: USB hub found
[ 4.452500] hub 1-1.1:1.0: 3 ports detected
INIT: version 3.04 booting
Starting udev
[ 4.810180] dwc_otg_handle_wakeup_detected_intr lxstate = 2
[ 4.966345] udevd[134]: starting version 3.2.12
[ 5.021180] udevd[136]: starting eudev-3.2.12
[ 5.191603] usb 1-1.1.1: new high-speed USB device number 4 using dwc_otg
[ 5.287143] usb 1-1.1.1: New USB device found, idVendor=0424, idProduct=7800, bcdDevice= 3.00
[ 5.295869] usb 1-1.1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 5.370044] EXT4-fs (mmcblk0p2): re-mounted. Quota mode: none.
Fri Mar 9 12:34:56 UTC 2018
[ 5.568791] lan78xx 1-1.1.1:1.0 (unnamed net_device) (uninitialized): No External EEPROM. Setting MAC Speed
[ 5.599332] lan78xx 1-1.1.1:1.0 (unnamed net_device) (uninitialized): int urb period 64
INIT: Entering runlevel: 5
Configuring network interfaces... [ 6.540409] lan78xx 1-1.1.1:1.0 eth0: Link is Down
udhcpc: started, v1.36.1
udhcpc: broadcasting discover
udhcpc: broadcasting discover
udhcpc: broadcasting discover
udhcpc: no lease, forking to background
done.
Starting syslogd/klogd: done
Poky (Yocto Project Reference Distro) 4.3.4 raspberrypi3-64 /dev/ttyS0
raspberrypi3-64 login:
ちなみに root でログインして色々できるっぽい。
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