@Frank kermit连接进去，发现没有可用的命令。
提示符上看，似乎不是超级用户。这是怎么回事？
下面是终端上收到的启动板子时的部分信息：
[ 19.249558@3] [sdio_reinit] finish
[ 19.315461@0] ionvid: info: ionvideo_stop_generating!!!
[ 19.315528@0] ionvid: info: ionvideo release
[ 19.346764@0] codec:vdec_create instance ffffff800a75b000, total 1
[ 19.347359@0] codec:vdec_release instance ffffff800a75b000, total 0
[ 19.354852@1] codec:vdec_create instance ffffff800a76e000, total 1
[ 19.361950@1] codec:vdec_release instance ffffff800a76e000, total 0
[ 19.371326@1] ionvid: info: ionvideo open
[ 19.455470@2] aml_wifi wifi.33: [wifi_power_ioctl] ioctl Set sdio wifi power up!
[ 19.457295@2] aml_wifi wifi.33: [wifi_power_ioctl] wifi interface dev type: sdio, length = 4
[ 19.566461@1] ionvid: info: ionvideo_stop_generating!!!
[ 19.566541@1] ionvid: info: ionvideo release
[ 19.576172@1] cfg80211: Calling CRDA to update world regulatory domain
[ 19.597267@1] dhd_module_init: in Dongle Host Driver, version 1.363.59.144.9 ®
[ 19.599076@1] ======== dhd_wlan_init_plat_data ========
[ 19.604290@1] dhd_wlan_init_gpio: GPIO(WL_REG_ON) = -1
[ 19.609359@1] dhd_wlan_init_gpio: GPIO(WL_HOST_WAKE) = -1
[ 19.614640@1] dhd_wlan_init_gpio: host_oob_irq: 100
[ 19.619735@1] dhd_wlan_init_gpio: host_oob_irq_flags=0x414
[ 19.624945@1] dhd_wifi_platform_load: Enter
[ 19.629145@1] Power-up adapter ‘DHD generic adapter’
[ 19.634005@1] wifi_platform_set_power = 1
[ 19.638282@1] ======== PULL WL_REG_ON(-1) HIGH! ========
[ 19.643480@3] codec:vdec_create instance ffffff8000942000, total 1
[ 19.644822@2] aml_wifi wifi.33: [extern_wifi_set_enable] WIFI Disable! 240
[ 19.656498@3] codec:vdec_release instance ffffff8000942000, total 0
[ 19.663641@1] codec:vdec_create instance ffffff8000955000, total 1
[ 19.672095@1] codec:vdec_release instance ffffff8000955000, total 0
[ 19.675786@1] ionvid: info: ionvideo open
[ 19.850337@2] aml_wifi wifi.33: [extern_wifi_set_enable] WIFI Enable! 240
[ 19.875467@1] ionvid: info: ionvideo_stop_generating!!!
[ 19.875525@1] ionvid: info: ionvideo release
[ 19.891306@0] codec:vdec_create instance ffffff8000968000, total 1
[ 19.891896@0] codec:vdec_release instance ffffff8000968000, total 0
[ 19.898940@2] codec:vdec_create instance ffffff8000b6d000, total 1
[ 19.905994@1] codec:vdec_release instance ffffff8000b6d000, total 0
[ 19.910812@1] ionvid: info: ionvideo open
[ 20.105451@1] ionvid: info: ionvideo_stop_generating!!!
[ 20.105512@1] ionvid: info: ionvideo release
[ 20.122679@1] codec:vdec_create instance ffffff80015c2000, total 1
[ 20.123263@1] codec:vdec_release instance ffffff80015c2000, total 0
[ 20.129992@1] codec:vdec_create instance ffffff80015d5000, total 1
[ 20.136683@1] codec:vdec_release instance ffffff80015d5000, total 0
[ 20.142122@1] ionvid: info: ionvideo open
[ 20.345457@1] ionvid: info: ionvideo_stop_generating!!!
[ 20.345520@1] ionvid: info: ionvideo release
[ 20.366815@3] codec:vdec_create instance ffffff80015e8000, total 1
[ 20.367396@3] codec:vdec_release instance ffffff80015e8000, total 0
[ 20.373989@3] codec:vdec_create instance ffffff8001641000, total 1
[ 20.379975@3] codec:vdec_release instance ffffff8001641000, total 0
[ 20.386278@3] ionvid: info: ionvideo open
[ 20.395461@2] wifi_platform_bus_enumerate device present 1
[ 20.395503@2] ======== Card detection to detect SDIO card! ========
[ 20.401520@2] sdio_reset_comm():
[ 20.431739@2] sdio: queuing unknown CIS tuple 0x80 (2 bytes)
[ 20.434576@2] sdio: queuing unknown CIS tuple 0x80 (3 bytes)
[ 20.440951@2] sdio: queuing unknown CIS tuple 0x80 (3 bytes)
[ 20.447872@2] sdio: queuing unknown CIS tuple 0x80 (7 bytes)
[ 20.454546@2] sdio: queuing unknown CIS tuple 0x81 (9 bytes)
[ 20.585430@3] ionvid: info: ionvideo_stop_generating!!!
[ 20.585590@3] ionvid: info: ionvideo release
[ 20.600990@1] codec:vdec_create instance ffffff8001654000, total 1
[ 20.601556@1] codec:vdec_release instance ffffff8001654000, total 0
[ 20.608228@1] codec:vdec_create instance ffffff8001667000, total 1
[ 20.609337@2] [sdio_reinit] finish
[ 20.617862@1] codec:vdec_release instance ffffff8001667000, total 0
[ 20.624070@1] ionvid: info: ionvideo open
[ 20.628350@2] bcmsdh_register: register client driver
[ 20.633671@2] bcmsdh_sdmmc: bcmsdh_sdmmc_probe Enter
[ 20.637694@2] bcmsdh_sdmmc: bcmsdh_sdmmc_probe Enter
[ 20.642835@2] bus num (host idx)=0, slot num (rca)=1
[ 20.647457@2] found adapter info ‘DHD generic adapter’
[ 20.652254@2] Wifi: bcmdhd_mem_prealloc: 7 bcmdhd_mem_prealloc: wlan_mem_array[section].mem_ptr=ffffffc002171ec8, size=139264
[ 20.663959@2] success alloc section 3, size 139264
[ 20.669061@2] alloc static buf at ffffffc056d40000!
[ 20.674176@2] Wifi: bcmdhd_mem_prealloc: 1 bcmdhd_mem_prealloc: section=4, wlan_static_skb=ffffffc00251d098
[ 20.682769@2] success alloc section 4, size 0
[ 20.687224@2] sdioh_attach: set sd_f2_blocksize 256
[ 20.692156@2] dhdsdio_probe : no mutex held. set lock
[ 20.697794@2] F1 signature read @0x18000000=0x1541a9a6
[ 20.705667@2] F1 signature OK, socitype:0x1 chip:0xa9a6 rev:0x1 pkg:0x4
[ 20.709422@2] DHD: dongle ram size is set to 524288(orig 524288) at 0x0
[ 20.715617@2] Wifi: bcmdhd_mem_prealloc: 4 bcmdhd_mem_prealloc: section=7, wlan_mem_array[4]=ffffffc057710000
[ 20.725852@3] success alloc section 7, size 31312
[ 20.729574@3] dhd_conf_set_chiprev: chip=0xa9a6, chiprev=1
[ 20.735109@3] Wifi: bcmdhd_mem_prealloc: 7 bcmdhd_mem_prealloc: wlan_mem_array[section].mem_ptr=ffffffc002171e98, size=10544
[ 20.746644@3] success alloc section 0, size 10544
[ 20.752903@2] Wifi: bcmdhd_mem_prealloc: 2 bcmdhd_mem_prealloc: section=5, wlan_static_scan_buf0=ffffffc0574f0000
[ 20.760971@2] success alloc section 5, size 65536
[ 20.767968@2] wl_create_event_handler(): thread:wl_event_handler:12b4 started
[ 20.769703@1] tsk Enter, tsk = 0xffffff800039bad8
[ 20.778653@2] wl_escan_attach: Enter
[ 20.780950@2] wl_escan_init: Enter
[ 20.784461@2] wl_create_event_handler(): thread:wl_escan_handler:12b6 started
[ 20.784465@1] tsk Enter, tsk = 0xffffffc04d9f01a0
[ 20.796511@2] dhd_attach(): thread:dhd_watchdog_thread:12b7 started
[ 20.802596@2] dhd_attach(): thread:dhd_dpc:12b8 started
[ 20.807812@2] dhd_attach(): thread:dhd_rxf:12b9 started
[ 20.812605@2] dhd_deferred_work_init: work queue initialized
[ 20.818308@2] Wifi: bcmdhd_mem_prealloc: 7 bcmdhd_mem_prealloc: wlan_mem_array[section].mem_ptr=ffffffc002171ea8, size=10524
[ 20.825510@1] ionvid: info: ionvideo_stop_generating!!!
[ 20.825542@1] ionvid: info: ionvideo release
[ 20.837774@3] codec:vdec_create instance ffffff8001781000, total 1
[ 20.837818@3] codec:vdec_release instance ffffff8001781000, total 0
[ 20.837925@3] codec:vdec_create instance ffffff8001794000, total 1
[ 20.837941@3] codec:vdec_release instance ffffff8001794000, total 0
[ 20.838032@3] ionvid: info: ionvideo open
[ 20.868234@2] success alloc section 1, size 10524
[ 20.877637@2] Wifi: bcmdhd_mem_prealloc: 7 bcmdhd_mem_prealloc: wlan_mem_array[section].mem_ptr=ffffffc002171eb8, size=65536
[ 20.884223@2] success alloc section 2, size 65536
[ 20.902106@2] Dongle Host Driver, version 1.363.59.144.9 ®
[ 20.913349@3] Register interface [wlan0] MAC: 8c:f7:10:c5:52:c9
[ 20.913349@3]
[ 20.915552@1] wl_event_handler: was terminated
[ 20.920211@3] wl_destroy_event_handler(): thread:wl_event_handler:12b4 terminated OK
[ 20.927709@3] dhd_wl_ioctl: returning as busstate=0
[ 20.932371@2] bcmsdh_oob_intr_unregister: Enter
[ 20.936828@2] bcmsdh_oob_intr_unregister: irq is not registered
[ 20.942819@2] dhd_txglom_enable: enable 0
[ 20.946625@2] dhd_conf_set_txglom_params: swtxglom=0, txglom_ext=0, txglom_bucket_size=0
[ 20.954620@2] dhd_conf_set_txglom_params: txglomsize=0, deferred_tx_len=0, bus_txglom=-1
[ 20.962668@2] dhd_conf_set_txglom_params: tx_in_rx=1, txinrx_thres=-1, dhd_txminmax=1
[ 20.970426@2] dhd_conf_set_txglom_params: tx_max_offset=0, txctl_tmo_fix=1
[ 20.977288@2] sdioh_set_mode: set txglom_mode to multi-desc
[ 20.982732@2] dhd_bus_devreset: WLAN OFF DONE
[ 20.987227@2] wifi_platform_set_power = 0
[ 20.991114@2] ======== PULL WL_REG_ON(-1) LOW! ========
[ 20.996295@2] dhdsdio_probe : the lock is released.
[ 21.001894@2] dhd_module_init: Exit err=0
[ 21.035431@3] ionvid: info: ionvideo_stop_generating!!!
[ 21.035489@3] ionvid: info: ionvideo release
[ 21.087525@0] dhd_open: Enter ffffffc051916800
[ 21.087567@0]
[ 21.087567@0] Dongle Host Driver, version 1.363.59.144.9 ®
[ 21.093590@0] wl_android_wifi_on in 1
[ 21.097227@0] wl_android_wifi_on in 2: g_wifi_on=0
[ 21.102268@0] wifi_platform_set_power = 1
[ 21.106332@0] ======== PULL WL_REG_ON(-1) HIGH! ========
[ 21.111200@0] aml_wifi wifi.33: [extern_wifi_set_enable] WIFI Disable! 240
[ 21.319688@0] aml_wifi wifi.33: [extern_wifi_set_enable] WIFI Enable! 240
[ 21.825462@0] sdio_reset_comm():
[ 22.013998@0] sdioh_start: set sd_f2_blocksize 256
[ 22.014332@0]
[ 22.014332@0]
[ 22.014332@0] dhd_bus_devreset: == WLAN ON ==
[ 22.021155@0] F1 signature read @0x18000000=0x1541a9a6
[ 22.028271@0] F1 signature OK, socitype:0x1 chip:0xa9a6 rev:0x1 pkg:0x4
[ 22.033952@0] DHD: dongle ram size is set to 524288(orig 524288) at 0x0
[ 22.039943@1] dhd_os_open_image: /etc/wifi/6212/config.txt (47 bytes) open success
[ 22.046596@1] dhd_conf_read_others: bcn_timeout = 20
[ 22.051727@1] dhd_conf_read_sdio_params: dhd_slpauto = 1
[ 22.056934@1] dhd_conf_read_others: ccode = CN
[ 22.061076@1] dhd_conf_read_others: regrev = 38
[ 22.065552@1] Final fw_path=/etc/wifi/6212/fw_bcm43438a1.bin
[ 22.071168@1] Final nv_path=/etc/wifi/6212/nvram.txt
[ 22.076135@1] Final clm_path=/etc/wifi/6212/clm_bcmdhd.blob
[ 22.081721@1] Final conf_path=/etc/wifi/6212/config.txt
[ 22.086762@1] dhd_set_bus_params: set use_rxchain 0
[ 22.091593@1] dhd_set_bus_params: set txglomsize 36
[ 22.097220@1] dhd_os_open_image: /etc/wifi/6212/fw_bcm43438a1.bin (374608 bytes) open success
[ 22.153754@2] dhd_os_open_image: /etc/wifi/6212/nvram.txt (956 bytes) open success
[ 22.155759@2] NVRAM version: AP6212_NVRAM_V1.0_20140603
[ 22.161495@2] dhdsdio_write_vars: Download, Upload and compare of NVRAM succeeded.
[ 22.224840@2] dhd_bus_init: enable 0x06, ready 0x06 (waited 0us)
[ 22.225319@2] bcmsdh_oob_intr_register: Enter
[ 22.229582@2] bcmsdh_oob_intr_register: HW_OOB enabled
[ 22.234624@2] bcmsdh_oob_intr_register OOB irq=100 flags=0x4
[ 22.240370@2] bcmsdh_oob_intr_register change flags to 0x4
[ 22.245710@2] bcmsdh_oob_intr_register: enable_irq_wake
[ 22.250837@2] bcmsdh_oob_intr_register: enable_irq_wake failed with -6
[ 22.258626@2] Disable tdls_auto_op failed. -1
[ 22.261619@2] dhd_conf_set_intiovar: set WLC_SET_BAND 142 0
[ 22.267793@1] dhd_preinit_ioctls: Set tcpack_sup_mode 0
[ 22.273274@1] dhd_apply_default_clm: Ignore clm file /etc/wifi/6212/clm_bcmdhd.blob
[ 22.283005@1] Firmware up: op_mode=0x0005, MAC=8c:f7:10:c5:52:c9
[ 22.286197@1] dhd_conf_set_country: set country CN, revision 38
[ 22.292892@1] CONFIG-ERROR) dhd_conf_set_bufiovar: country setting failed -2
[ 22.300798@3] Country code: US (US/0)
[ 22.304651@3] dhd_conf_set_intiovar: set roam_off 1
[ 22.318494@2] Firmware version = wl0: Oct 8 2016 15:31:47 version 7.46.57.4.ap.r4 (A1 Station/P2P) FWID 01-3621395e es6.c5.n4.a3
[ 22.324482@2] Driver: 1.363.59.144.9 ®
[ 22.324482@2] Firmware: wl0: Oct 8 2016 15:31:47 version 7.46.57.4.ap.r4 (A1 Station/P2P) FWID 01-3621395e es6.c5.n4.a3
[ 22.340321@3] clm = 7.11.15
[ 22.342895@3] dhd_txglom_enable: enable 1
[ 22.346619@3] dhd_conf_set_txglom_params: swtxglom=0, txglom_ext=0, txglom_bucket_size=0
[ 22.354634@3] dhd_conf_set_txglom_params: txglomsize=36, deferred_tx_len=0, bus_txglom=-1
[ 22.362691@3] dhd_conf_set_txglom_params: tx_in_rx=1, txinrx_thres=-1, dhd_txminmax=1
[ 22.370465@3] dhd_conf_set_txglom_params: tx_max_offset=0, txctl_tmo_fix=1
[ 22.377863@3] sdioh_set_mode: set txglom_mode to multi-desc
[ 22.383932@3] dhd_conf_get_disable_proptx: fw_proptx=1, disable_proptx=-1
[ 22.390822@3] dhd_wlfc_hostreorder_init(): successful bdcv2 tlv signaling, 64
[ 22.396838@3] dhd_conf_set_intiovar: set ampdu_hostreorder 1
[ 22.403546@3] dhd_pno_init: Support Android Location Service
[ 22.407767@3] wl_android_wifi_on: Success
[ 22.412712@3] wl_create_event_handler(): thread:wl_event_handler:12f5 started
[ 22.412716@0] tsk Enter, tsk = 0xffffff800039bad8
[ 22.450374@0] CFG80211-ERROR) wl_update_wiphybands : error reading vhtmode (-23)
[ 22.461877@3] dhd_open: Exit ret=0
[ 22.587276@3] P2P interface registered
[ 22.587311@3] wl_cfgp2p_add_p2p_disc_if: wdev: ffffffc054cace00, wdev->net: (null)
[ 22.600088@3] WLC_E_IF: NO_IF set, event Ignored
[ 22.602027@3] P2P interface started
[ 22.642363@2] net_os_enable_packet_filter: val = 0
[ 22.643647@2] net_os_rxfilter_add_remove: add_remove = 0, num = 2
[ 22.650008@2] net_os_enable_packet_filter: val = 1
[ 22.659452@2] net_os_enable_packet_filter: val = 0
[ 22.661216@2] net_os_rxfilter_add_remove: add_remove = 0, num = 3
[ 22.667526@2] net_os_enable_packet_filter: val = 1
[ 22.680830@2] dhd_set_suspend: Remove extra suspend setting
[ 22.681201@2] dhd_enable_packet_filter: enter, value = 0
[ 26.272825@1] BT_RADIO going: off
[ 26.272868@1] BCM_BT: going OFF
[ 26.298164@1] BT_RADIO going: on
[ 26.298198@1] BCM_BT: going ON
[ 26.540712@1] ion_dev ion_dev.21: Fail to allocate buffer
[ 26.717145@2] meson_uart c11084c0.serial: ttyS1 use xtal(8M) 24000000 change 0 to 9600
[ 26.719544@2] meson_uart c11084c0.serial: ttyS1 use xtal(8M) 24000000 change 9600 to 9600
[ 26.727798@2] meson_uart c11084c0.serial: ttyS1 use xtal(8M) 24000000 change 9600 to 115200
[ 26.741187@2] meson_uart c11084c0.serial: ttyS1 use xtal(8M) 24000000 change 115200 to 2000000
[ 26.998604@3] meson_uart c11084c0.serial: ttyS1 use xtal(8M) 24000000 change 2000000 to 115200
[ 27.207333@3] meson_uart c11084c0.serial: ttyS1 use xtal(8M) 24000000 change 115200 to 2000000
[ 31.085583@0] type=1400 audit(1293883228.700:47): avc: denied { getattr } for pid=5026 comm=“bootstat” path="/vendor" dev=“rootfs” ino=6760 scontext=u:r:bootstat:s0 tcontext=u:object_r:rootfs:s0 tclass=lnk_file permissive=1
[ 31.190948@0] type=1400 audit(1293883228.810:48): avc: denied { getattr } for pid=5042 comm=“preinstall.sh” path="/data/local/symbol_thirdpart_apks_installed" dev=“mmcblk0p13” ino=257539 scontext=u:r:preinstall:s0 tcontext=u:object_r:system_data_file:s0 tclass=file permissive=1
[ 31.729432@3] dig: isBootCompleted:1!
[ 31.730323@3] dig: setDataRoCount count:0!
[ 31.918651@1] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[ 31.918705@1] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[ 31.927919@1] xhci-hcd xhci-hcd.0.auto: irq 62, io mem 0xc9000000
[ 31.937558@1] hub 1-0:1.0: USB hub found
[ 31.937670@1] hub 1-0:1.0: 2 ports detected
[ 31.940806@1] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[ 31.946178@1] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[ 31.957517@1] hub 2-0:1.0: USB hub found
[ 31.957813@1] hub 2-0:1.0: config failed, hub doesn’t have any ports! (err -19)
[ 31.987056@0] dwc_otg: usb0: type: 2 speed: 0, config: 0, dma: 0, id: 0, phy: d0078000, ctrl: 0
[ 32.092419@0] dwc_otg: Core Release: 3.10a
[ 32.092473@0] dwc_otg: Setting default values for core params
[ 32.096692@0] dwc_otg: curmode: 0, host_only: 0
[ 32.120677@0] dwc_otg: Using Buffer DMA mode
[ 32.120718@0] dwc_otg: OTG VER PARAM: 1, OTG VER FLAG: 1
[ 32.124595@0] dwc_otg: Working on port type = SLAVE
[ 32.129453@0] dwc_otg: Dedicated Tx FIFOs mode
[ 32.140437@0] Number of LUNs=8
[ 32.140481@0] Mass Storage Function, version: 2009/09/11
[ 32.143190@0] LUN: removable file: (no medium)
[ 32.149014@0] android_usb gadget: android_usb ready
[ 32.154269@0] file system registered
[ 32.157918@0] init: property ‘ro.usb.vendor.string’ doesn’t exist while expanding ‘${ro.usb.vendor.string}’
[ 32.165651@0] init: write: cannot expand ‘${ro.usb.vendor.string}’
[ 32.171764@0] init: property ‘ro.usb.product.string’ doesn’t exist while expanding ‘${ro.usb.product.string}’
[ 32.181674@0] init: write: cannot expand ‘${ro.usb.product.string}’
[ 32.189890@0] init: finit_module for “/system/lib/dwc3.ko” failed: File exists[ 32.194707@1] read descriptors
[ 32.194720@1] read descriptors
[ 32.194730@1] read strings
[ 32.209569@0] init: finit_module for “/system/lib/dwc_otg.ko” failed: File exists[ 32.213136@0] ffs_data_put(): freeing
[ 32.215369@0] init: property ‘ro.usb.vendor.string’ doesn’t exist while expanding ‘${ro.usb.vendor.string}’
[ 32.224848@0] init: write: cannot expand ‘${ro.usb.vendor.string}’
[ 32.230913@0] init: property ‘ro.usb.product.string’ doesn’t exist while expanding ‘${ro.usb.product.string}’
[ 32.240793@0] init: write: cannot expand ‘${ro.usb.product.string}’
[ 32.247974@0] init: finit_module for “/system/lib/dwc3.ko” failed: File exists
[ 32.255791@1] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[ 32.260757@1] init: finit_module for “/system/lib/dwc_otg.ko” failed: File exists
[ 32.270480@0] ffs_data_put(): freeing
[ 32.272164@0] init: property ‘ro.usb.vendor.string’ doesn’t exist while expanding ‘${ro.usb.vendor.string}’
[ 32.281636@0] init: write: cannot expand ‘${ro.usb.vendor.string}’
[ 32.287639@0] init: property ‘ro.usb.product.string’ doesn’t exist while expanding ‘${ro.usb.product.string}’
[ 32.297495@0] init: write: cannot expand ‘${ro.usb.product.string}’
[ 32.310756@3] android_usb: already disabled
[ 32.317773@2] read descriptors
[ 32.317814@2] read descriptors
[ 32.318243@2] read strings
[ 32.441753@0] hub 1-1:1.0: USB hub found
[ 32.441977@0] hub 1-1:1.0: 4 ports detected
[ 33.062019@0] type=1400 audit(1293883230.680:49): avc: denied { write } for pid=4977 comm=“ndroid.settings” name=“trigger” dev=“sysfs” ino=14283 scontext=u:r:system_app:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
[ 33.130768@0] audio_dsp: drc high cut scale set to 100%
[ 33.131294@2] audio_dsp: drc low boost scale set to 100%
[ 33.136266@0] audio_dsp: drc mode set to LINE
