中国版BeagleBone-Black，全部用的最新版：

u-Boot: 2013.07版，内核3.8.13，busybox: 1.21.0

根目录采用RAMDISK实现；

U-Boot SPL 2013.07 (Jul 29 2013 - 14:43:53)
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
OMAP SD/MMC: 0
reading args
spl: error reading image args, err - -1
reading u-boot.img
reading u-boot.img


U-Boot 2013.07 (Jul 29 2013 - 14:43:53)

I2C:   ready
DRAM:  512 MiB
WARNING: Caches not enabled
NAND:  0 MiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - readenv() failed, using default environment

musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
Net:   <ethaddr> not set. Validating first E-fuse MAC
cpsw, usb_ether
Hit any key to stop autoboot:  0
mmc0 is current device
SD/MMC found on device 0
reading uEnv.txt
** Unable to read file uEnv.txt **
reading /uImage
4381936 bytes read in 494 ms (8.5 MiB/s)
reading /am335x-boneblack.dtb
24117 bytes read in 9 ms (2.6 MiB/s)
reading ramdisk.gz
2021115 bytes read in 232 ms (8.3 MiB/s)
Booting from ramdisk ...
## Booting kernel from Legacy Image at 80200000 ...
   Image Name:   Linux-3.8.13
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4381872 Bytes = 4.2 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 81000000 ...
   Image Name:   uboot ext3 ramdisk rootfs
   Image Type:   ARM Linux RAMDisk Image (gzip compressed)
   Data Size:    2021051 Bytes = 1.9 MiB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 80f80000
   Booting using the fdt blob at 0x80f80000
   Loading Kernel Image ... OK
   Loading Ramdisk to 9f849000, end 9fa366bb ... OK
   Using Device Tree in place at 80f80000, end 80f88e34

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.8.13 (walt@zynq7k) (gcc version 4.7.3 (Sourcery CodeBench Lite 2013.05-24) ) #4 SMP Mon Jul 29 13:50:25 CST 2013
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=50c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine: Generic AM33XX (Flattened Device Tree), model: TI AM335x BeagleBone
[    0.000000] Memory policy: ECC disabled, Data cache writeback
[    0.000000] AM335X ES1.0 (neon )
[    0.000000] PERCPU: Embedded 8 pages/cpu @c0b1b000 s9408 r8192 d15168 u32768
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 129792
[    0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/ram0 rw ramdisk_size=65536 initrd=${rdaddr},64M rootfstype=ext3
[    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] __ex_table already sorted, skipping sort
[    0.000000] allocated 1048576 bytes of page_cgroup
[    0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[    0.000000] Memory: 511MB = 511MB total
[    0.000000] Memory: 508432k/508432k available, 15856k 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 : 0xe0800000 - 0xff000000   ( 488 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xe0000000   ( 512 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf800000 - 0xbfe00000   (   6 MB)
[    0.000000]       .text : 0xc0008000 - 0xc0608f14   (6148 kB)
[    0.000000]       .init : 0xc0609000 - 0xc063e4c0   ( 214 kB)
[    0.000000]       .data : 0xc0640000 - 0xc06b2120   ( 457 kB)
[    0.000000]        .bss : 0xc06b2120 - 0xc070bbbc   ( 359 kB)
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[    0.000000] Total of 128 interrupts on 1 active controller
[    0.000000] OMAP clockevent source: GPTIMER1 at 24000000 Hz
[    0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
[    0.000000] OMAP clocksource: GPTIMER2 at 24000000 Hz
[    0.000000] Console: colour dummy device 80x30
[    0.000359] Calibrating delay loop... 545.07 BogoMIPS (lpj=531968)
[    0.015433] pid_max: default: 32768 minimum: 301
[    0.015672] Security Framework initialized
[    0.015764] Mount-cache hash table entries: 512
[    0.025731] Initializing cgroup subsys cpuacct
[    0.025765] Initializing cgroup subsys memory
[    0.025827] Initializing cgroup subsys blkio
[    0.025963] CPU: Testing write buffer coherency: ok
[    0.026498] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[    0.026573] Setting up static identity map for 0x8037b7b0 - 0x8037b7fc
[    0.027991] Brought up 1 CPUs
[    0.028015] SMP: Total of 1 processors activated (545.07 BogoMIPS).
[    0.029282] devtmpfs: initialized
[    0.093931] pinctrl core: initialized pinctrl subsystem
[    0.094144] rstctl core: initialized rstctl subsystem
[    0.094633] regulator-dummy: no parameters
[    0.095141] NET: Registered protocol family 16
[    0.096047] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.105961] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[    0.106736] platform 49000000.edma: alias fck already exists
[    0.106769] platform 49000000.edma: alias fck already exists
[    0.106796] platform 49000000.edma: alias fck already exists
[    0.108176] OMAP GPIO hardware version 0.1
[    0.112686] gpio-rctrl rstctl.3: loaded OK
[    0.118192] hw-breakpoint: debug architecture 0x4 unsupported.
[    0.120332] cpsw.0: No hwaddr in dt. Using c8:a0:30:aa:4b:d2 from efuse
[    0.120362] cpsw.1: No hwaddr in dt. Using c8:a0:30:aa:4b:d4 from efuse
[    0.134815] bio: create slab <bio-0> at 0
[    0.146660] edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver
[    0.147110] vmmcsd_fixed: 3300 mV
[    0.149772] SCSI subsystem initialized
[    0.150240] usbcore: registered new interface driver usbfs
[    0.150369] usbcore: registered new interface driver hub
[    0.150652] usbcore: registered new device driver usb
[    0.152676] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[    0.154172] input: tps65217_pwr_but as /devices/ocp.2/44e0b000.i2c/i2c-0/0-0024/input/input0
[    0.155854] DCDC1: at 1500 mV
[    0.157072] vdd_mpu: 925 <--> 1325 mV at 1325 mV
[    0.158244] vdd_core: 925 <--> 1150 mV at 1100 mV
[    0.159358] LDO1: at 1800 mV
[    0.160527] LDO2: at 3300 mV
[    0.162483] LDO3: 1800 mV
[    0.163598] LDO4: at 3300 mV
[    0.164632] tps65217 0-0024: TPS65217 ID 0xe version 1.2
[    0.165318] omap_i2c 44e0b000.i2c: unable to select pin group
[    0.166087] omap_i2c 4819c000.i2c: bus 1 rev0.11 at 100 kHz
[    0.168452] omap_i2c 4819c000.i2c: unable to select pin group
[    0.168660] media: Linux media interface: v0.10
[    0.168764] Linux video capture interface: v2.00
[    0.168907] pps_core: LinuxPPS API ver. 1 registered
[    0.168924] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.169649] Advanced Linux Sound Architecture Driver Initialized.
[    0.171067] Switching to clocksource gp_timer
[    0.189171] NET: Registered protocol family 2
[    0.190164] TCP established hash table entries: 4096 (order: 3, 32768 bytes)
[    0.190305] TCP bind hash table entries: 4096 (order: 4, 81920 bytes)
[    0.190468] TCP: Hash tables configured (established 4096 bind 4096)
[    0.190560] TCP: reno registered
[    0.190589] UDP hash table entries: 256 (order: 1, 12288 bytes)
[    0.190635] UDP-Lite hash table entries: 256 (order: 1, 12288 bytes)
[    0.191118] NET: Registered protocol family 1
[    0.191698] RPC: Registered named UNIX socket transport module.
[    0.191719] RPC: Registered udp transport module.
[    0.191732] RPC: Registered tcp transport module.
[    0.191746] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.192118] Trying to unpack rootfs image as initramfs...
[    0.193792] rootfs image is not initramfs (no cpio magic); looks like an initrd
[    0.208500] Freeing initrd memory: 1972K
[    0.209291] CPU PMU: probing PMU on CPU 0
[    0.209323] hw perfevents: enabled with ARMv7 Cortex-A8 PMU driver, 5 counters available
[    0.209875] omap2_mbox_probe: platform not supported
[    0.213764] VFS: Disk quotas dquot_6.5.2
[    0.213994] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.215297] NFS: Registering the id_resolver key type
[    0.215391] Key type id_resolver registered
[    0.215409] Key type id_legacy registered
[    0.215474] jffs2: version 2.2. (NAND) (SUMMARY)  婕?2001-2006 Red Hat, Inc.
[    0.215918] msgmni has been set to 996
[    0.218791] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    0.218817] io scheduler noop registered
[    0.218833] io scheduler deadline registered
[    0.218874] io scheduler cfq registered (default)
[    0.220611] tps65217-bl tps65217-bl: no platform data provided
[    0.220651] tps65217-bl: probe of tps65217-bl failed with error -22
[    0.221494] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.224190] omap_uart 44e09000.serial: did not get pins for uart0 error: -19
[    0.224473] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 88) is a OMAP UART0
[    0.948561] console [ttyO0] enabled
[    0.953429] [drm] Initialized drm 1.1.0 20060810
[    0.971847] brd: module loaded
[    0.982080] loop: module loaded
[    0.985521] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    0.992808] at24 1-0054: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    1.000083] at24 1-0055: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    1.007623] at24 1-0056: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    1.014951] at24 1-0057: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    1.029225] bone-capemgr bone_capemgr.8: Baseboard: 'A335BNLT,t
[    1.029225] ue,EMD503266

[    1.038465] bone-capemgr bone_capemgr.8: compatible-baseboard=ti,beaglebone-black
[    1.077442] bone-capemgr bone_capemgr.8: slot #0: No cape found
[    1.114548] bone-capemgr bone_capemgr.8: slot #1: No cape found
[    1.151657] bone-capemgr bone_capemgr.8: slot #2: No cape found
[    1.188765] bone-capemgr bone_capemgr.8: slot #3: No cape found
[    1.195017] bone-capemgr bone_capemgr.8: slot #4: specific override
[    1.201618] bone-capemgr bone_capemgr.8: bone: Using override eeprom data at slot 4
[    1.209652] bone-capemgr bone_capemgr.8: slot #4: 'Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G'
[    1.219805] bone-capemgr bone_capemgr.8: slot #5: specific override
[    1.226401] bone-capemgr bone_capemgr.8: bone: Using override eeprom data at slot 5
[    1.234433] bone-capemgr bone_capemgr.8: slot #5: 'Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI'
[    1.244479] bone-capemgr bone_capemgr.8: slot #6: specific override
[    1.251073] bone-capemgr bone_capemgr.8: bone: Using override eeprom data at slot 6
[    1.259107] bone-capemgr bone_capemgr.8: slot #6: 'Bone-Black-HDMIN,00A0,Texas Instrument,BB-BONELT-HDMIN'
[    1.269682] bone-capemgr bone_capemgr.8: loader: before slot-4 BB-BONE-EMMC-2G:00A0 (prio 1)
[    1.278545] bone-capemgr bone_capemgr.8: loader: check slot-4 BB-BONE-EMMC-2G:00A0 (prio 1)
[    1.287419] bone-capemgr bone_capemgr.8: loader: before slot-5 BB-BONELT-HDMI:00A0 (prio 1)
[    1.296182] bone-capemgr bone_capemgr.8: loader: check slot-5 BB-BONELT-HDMI:00A0 (prio 1)
[    1.304881] bone-capemgr bone_capemgr.8: initialized OK.
[    1.310479] bone-capemgr bone_capemgr.8: loader: before slot-6 BB-BONELT-HDMIN:00A0 (prio 2)
[    1.319324] bone-capemgr bone_capemgr.8: loader: check slot-6 BB-BONELT-HDMIN:00A0 (prio 2)
[    1.330031] OneNAND driver initializing
[    1.335645] usbcore: registered new interface driver asix
[    1.341358] bone-capemgr bone_capemgr.8: loader: after slot-4 BB-BONE-EMMC-2G:00A0 (prio 1)
[    1.350226] usbcore: registered new interface driver cdc_ether
[    1.356380] bone-capemgr bone_capemgr.8: loader: after slot-5 BB-BONELT-HDMI:00A0 (prio 1)
[    1.365062] bone-capemgr bone_capemgr.8: loader: check slot-6 BB-BONELT-HDMIN:00A0 (prio 2)
[    1.373928] usbcore: registered new interface driver smsc95xx
[    1.379998] bone-capemgr bone_capemgr.8: slot #4: Requesting firmware 'cape-bone-2g-emmc1.dtbo' for board-name 'Bone-LT-eMMC-2G', version '00A0'
[    1.393659] usbcore: registered new interface driver net1080
[    1.399720] usbcore: registered new interface driver cdc_subset
[    1.405956] bone-capemgr bone_capemgr.8: slot #4: dtbo 'cape-bone-2g-emmc1.dtbo' loaded; converting to live tree
[    1.416669] bone-capemgr bone_capemgr.8: slot #5: Requesting firmware 'cape-boneblack-hdmi-00A0.dtbo' for board-name 'Bone-Black-HDMI', version '00A0'
[    1.430852] usbcore: registered new interface driver zaurus
[    1.436890] usbcore: registered new interface driver cdc_ncm
[    1.443117] bone-capemgr bone_capemgr.8: slot #4: #2 overlays
[    1.449191] bone-capemgr bone_capemgr.8: slot #5: dtbo 'cape-boneblack-hdmi-00A0.dtbo' loaded; converting to live tree
[    1.461259] usbcore: registered new interface driver cdc_acm
[    1.467229] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[    1.475610] Initializing USB Mass Storage driver...
[    1.481584] bone-capemgr bone_capemgr.8: slot #4: Applied #2 overlays.
[    1.488474] bone-capemgr bone_capemgr.8: loader: done slot-4 BB-BONE-EMMC-2G:00A0 (prio 1)
[    1.497175] bone-capemgr bone_capemgr.8: loader: check slot-6 BB-BONELT-HDMIN:00A0 (prio 2)
[    1.506951] bone-capemgr bone_capemgr.8: slot #5: #4 overlays
[    1.515197] platform 4830e000.fb: alias fck already exists
[    1.521246] usbcore: registered new interface driver usb-storage
[    1.527593] USB Mass Storage support registered.
[    1.534062] bone-capemgr bone_capemgr.8: slot #5: Applied #4 overlays.
[    1.540976] bone-capemgr bone_capemgr.8: loader: done slot-5 BB-BONELT-HDMI:00A0 (prio 1)
[    1.549574] bone-capemgr bone_capemgr.8: loader: check slot-6 BB-BONELT-HDMIN:00A0 (prio 2)
[    1.558521] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
[    1.565241] musb-hdrc musb-hdrc.0.auto: pdev->id = 0
[    1.570522] musb-hdrc musb-hdrc.0.auto: drivers/usb/musb/musb_dsps.c:468 dsps_musb_init: OK
[    1.579476] bone-capemgr bone_capemgr.8: loader: after slot-6 BB-BONELT-HDMIN:00A0 (prio 2)
[    1.588537] musb-hdrc musb-hdrc.0.auto: *** mode=3
[    1.593604] musb-hdrc musb-hdrc.0.auto: *** power=250
[    1.598964] bone-capemgr bone_capemgr.8: slot #6: Requesting firmware 'cape-boneblack-hdmin-00A0.dtbo' for board-name 'Bone-Black-HDMIN', version '00A0'
[    1.614002] musb-hdrc musb-hdrc.1.auto: pdev->id = 1
[    1.619272] musb-hdrc musb-hdrc.1.auto: drivers/usb/musb/musb_dsps.c:468 dsps_musb_init: OK
[    1.628305] musb-hdrc musb-hdrc.1.auto: *** mode=1
[    1.633351] musb-hdrc musb-hdrc.1.auto: *** power=250
[    1.638661] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[    1.644726] bone-capemgr bone_capemgr.8: slot #6: dtbo 'cape-boneblack-hdmin-00A0.dtbo' loaded; converting to live tree
[    1.656612] bone-capemgr bone_capemgr.8: slot #6: BB-BONELT-HDMIN conflict P8.45 (#5:BB-BONELT-HDMI)
[    1.666219] bone-capemgr bone_capemgr.8: slot #6: Failed verification
[    1.672988] bone-capemgr bone_capemgr.8: loader: failed to load slot-6 BB-BONELT-HDMIN:00A0 (prio 2)
[    1.682718] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
[    1.691142] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    1.698273] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.705848] usb usb1: Product: MUSB HDRC host driver
[    1.711066] usb usb1: Manufacturer: Linux 3.8.13 musb-hcd
[    1.716735] usb usb1: SerialNumber: musb-hdrc.1.auto
[    1.723264] hub 1-0:1.0: USB hub found
[    1.727312] hub 1-0:1.0: 1 port detected
[    1.732838] mousedev: PS/2 mouse device common for all mice
[    1.741142] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0
[    1.748656] 44e3e000.rtc: already running
[    1.753153] i2c /dev entries driver
[    1.758531] pps_ldisc: PPS line discipline registered
[    1.764016] Driver for 1-wire Dallas network protocol.
[    1.770907] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[    1.778478] cpuidle: using governor ladder
[    1.782804] cpuidle: using governor menu
[    1.787397] omap_hsmmc mmc.4: of_parse_phandle_with_args of 'reset' failed
[    1.794622] omap_hsmmc mmc.4: Failed to get rstctl; not using any
[    1.801049] omap_hsmmc mmc.4: unable to select pin group
[    1.806895] edma-dma-engine edma-dma-engine.0: allocated channel for 0:25
[    1.814095] edma-dma-engine edma-dma-engine.0: allocated channel for 0:24
[    1.821423] mmc.4 supply vmmc_aux not found, using dummy regulator
[    1.828050] omap_hsmmc mmc.4: pins are not configured from the driver
[    1.862919] gpio-rctrl rstctl.3: gpio_rctrl_request eMMC_RSTn
[    1.869136] omap_hsmmc mmc.10: Got rstctl (gpio:#0 name eMMC_RSTn) label:eMMC_RSTn
[    1.877128] gpio-rctrl rstctl.3: gpio_rctrl_deassert eMMC_RSTn
[    1.883574] edma-dma-engine edma-dma-engine.0: allocated channel for 0:3
[    1.890723] edma-dma-engine edma-dma-engine.0: allocated channel for 0:2
[    1.898245] mmc.10 supply vmmc_aux not found, using dummy regulator
[    1.904987] omap_hsmmc mmc.10: pins are not configured from the driver
[    1.939246] pinctrl-single 44e10800.pinmux: pin 44e10854 already requested by 44e10800.pinmux; cannot claim for gpio-leds.7
[    1.950944] pinctrl-single 44e10800.pinmux: pin-21 (gpio-leds.7) status -22
[    1.958270] pinctrl-single 44e10800.pinmux: could not request pin 21 on device pinctrl-single
[    1.967240] leds-gpio gpio-leds.7: pins are not configured from the driver
[    1.975810] ledtrig-cpu: registered to indicate activity on CPUs
[    1.982623] edma-dma-engine edma-dma-engine.0: allocated channel for 0:36
[    1.989869] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[    1.998319] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[    2.004761] edma-dma-engine edma-dma-engine.0: allocated channel for 0:5
[    2.011947] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.020544] edma-dma-engine edma-dma-engine.0: allocated channel for 0:6
[    2.028780] usbcore: registered new interface driver usbhid
[    2.034688] usbhid: USB HID core driver
[    2.038805] mmc0: new high speed SDHC card at address 0002
[    2.048280] mmcblk0: mmc0:0002 00000 3.70 GiB
[    2.054585] davinci_evm sound.13:  nxp-hdmi-hifi <-> 48038000.mcasp mapping ok
[    2.064548]  mmcblk0: p1
[    2.070632] TCP: cubic registered
[    2.074177] Initializing XFRM netlink socket
[    2.078740] NET: Registered protocol family 17
[    2.083563] NET: Registered protocol family 15
[    2.088394] Key type dns_resolver registered
[    2.093209] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[    2.101323] ThumbEE CPU extension supported.
[    2.105875] Registering SWP/SWPB emulation handler
[    2.112013] registered taskstats version 1
[    2.118052] slave hdmi.12: modes-blacklisted #0 -> 1920x1080@25
[    2.124388] slave hdmi.12: modes-blacklisted #1 -> 832x624@75
[    2.132407] tilcdc 4830e000.fb: No power control GPIO
[    2.172768] mmc1: BKOPS_EN bit is not set
[    2.179639] mmc1: new high speed MMC card at address 0001
[    2.186163] mmcblk1: mmc1:0001 MMC02G 1.78 GiB
[    2.191578] mmcblk1boot0: mmc1:0001 MMC02G partition 1 1.00 MiB
[    2.198147] mmcblk1boot1: mmc1:0001 MMC02G partition 2 1.00 MiB
[    2.206595]  mmcblk1: p1 p2
[    2.212399]  mmcblk1boot1: unknown partition table
[    2.219504]  mmcblk1boot0: unknown partition table
[    2.246512] tilcdc 4830e000.fb: found TDA19988
[    2.251974] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[    2.258920] [drm] No driver support for vblank timestamp query.
[    2.265513] tilcdc 4830e000.fb: No connectors reported connected with modes
[    2.272829] [drm] Cannot find any crtc or sizes - going 1024x768
[    2.296525] Console: switching to colour frame buffer device 128x48
[    2.315297] tilcdc 4830e000.fb: fb0:  frame buffer device
[    2.320968] tilcdc 4830e000.fb: registered panic notifier
[    2.326747] [drm] Initialized tilcdc 1.0.0 20121205 on minor 0
[    2.382148] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[    2.388566] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
[    2.396140] libphy: 4a101000.mdio: probed
[    2.400405] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
[    2.410240] Detected MACID = c8:a0:30:aa:4b:d2
[    2.414891] cpsw 4a100000.ethernet: NAPI disabled
[    2.421578] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 06:28:08 UTC (946708088)
[    2.437956] ALSA device list:
[    2.441112]   #0: TI BeagleBone Black
[    2.445482] RAMDISK: gzip image found at block 0
[    2.657209] kjournald starting.  Commit interval 5 seconds
[    2.663135] EXT3-fs (ram0): using internal journal
[    2.668157] EXT3-fs (ram0): mounted filesystem with ordered data mode
[    2.674964] VFS: Mounted root (ext3 filesystem) on device 1:0.
[    2.681320] devtmpfs: mounted
[    2.684729] Freeing init memory: 212K
Starting logging: OK
Starting mdev...
Initializing random number generator... done.
Starting network...

Welcome to Buildroot
beaglebone login: root
# cat -v
cat: invalid option -- 'v'
BusyBox v1.21.0 (2013-07-29 13:03:31 CST) multi-call binary.

Usage: cat [FILE]...

Concatenate FILEs and print them to stdout

# pwd
/root
# ls /
bin         home        lost+found  opt         run         tmp
dev         lib         media       proc        sbin        usr
etc         linuxrc     mnt         root        sys         var