EVMK2H Rev40 uboot tftp nfs

请问是否有按下面GSG的步骤操作？
processors.wiki.ti.com/.../MCSDK_HPC_3.x_Getting_Started_Guide

问题已解决，是内核文件拷贝错误。但是，遇到一个新问题，昨天tftp下载内核，nfs主机文件系统都能成功登录，今天上班开机，出现把示:Welcome to emergPress enter for maintenance.详细信息如下：
[ 5.084881] Sending DHCP requests ., OK
[ 5.164820] IP-Config: Got DHCP answer from 192.168.2.55, my address is 192.168.2.182
[ 5.172678] IP-Config: Complete:
[ 5.175943] device=eth0, hwaddr=b4:99:4c:9f:7f:93, ipaddr=192.168.2.182, mask=255.2555
[ 5.186286] host=192.168.2.182, domain=DHCP HOST, nis-domain=(none)
[ 5.193009] bootserver=0.0.0.0, rootserver=192.168.2.192, rootpath= nameserver0=14
[ 5.476604] VFS: Mounted root (nfs filesystem) on device 0:14.
[ 5.482903] devtmpfs: mounted
[ 5.486903] Freeing unused kernel memory: 2048K
[ 5.501444] random: fast init done
[ 5.777913] systemd[1]: System time before build time, advancing clock.
[ 5.830317] systemd[1]: systemd 230 running in system mode. (+PAM -AUDIT -SELINUX +IMA -AP)
[ 5.848716] systemd[1]: Detected architecture arm.

Welcome to Arago 2017.12!

[ 5.886614] systemd[1]: Set hostname to <k2hk-evm>.
[ 6.430896] systemd[1]: Reached target Swap.
[ OK ] Reached target Swap.
[ 6.466091] systemd[1]: Created slice System Slice.
[ OK ] Created slice System Slice.
[ 6.495047] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[ OK ] Started Dispatch Password Requests to Console Directory Watch.
[ 6.534899] systemd[1]: Reached target Remote File Systems.
[ OK ] Reached target Remote File Systems.
[ 6.575006] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ OK ] Started Forward Password Requests to Wall Directory Watch.
[ 6.615402] systemd[1]: Created slice system-getty.slice.
[ OK ] Created slice system-getty.slice.
[ 6.655394] systemd[1]: Created slice system-serial\x2dgetty.slice.
[ OK ] Created slice system-serial\x2dgetty.slice.
[ OK ] Listening on udev Kernel Socket.
[ OK ] Listening on /dev/initctl Compatibility Named Pipe.
[ OK ] Listening on Journal Socket.
Starting Setup Virtual Console...
Mounting Debug File System...
Starting alignment.service...
Starting Remount Root and Kernel File Systems...
[ OK ] Listening on Journal Socket (/dev/log).
[ OK ] Created slice User and Session Slice.
[ OK ] Listening on Syslog Socket.
[ OK ] Listening on Process Core Dump Socket.
[ OK ] Reached target Paths.
Mounting POSIX Message Queue File System...
Starting Create list of required st... nodes for the current kernel...
Starting Load Kernel Modules...
[ 7.219695] cmemk: loading out-of-tree module taints kernel.
[ 7.226044] CMEMK module: reference Linux version 4.9.69
[ 7.231763] allocated heap buffer 0xc100000 of size 0x480000
[ 7.237470] cmemk initialized
Starting Journal Service...
[ 7.254709] cryptodev: driver 1.8 loaded.
Mounting Temporary Directory...
[ OK ] Listening on Network Service Netlink Socket.
[ OK ] Listening on udev Control Socket.
[ OK ] Reached targe[ 7.336927] NET: Registered protocol family 43
t Slices.
[ 7.354573] uio_module_drv soc:mpax: registered misc device mpax
[ 7.360848] uio_module_drv soc:edma3: registered misc device edma3
[ 7.367267] uio_module_drv soc:secmgr: registered misc device secmgr
[ 7.373819] uio_module_drv soc:qmss: registered misc device qmss
[ OK ] Started Journ[ 7.385804] uio_module_drv soc:hyperlink0: registered misc device hy0
al Service.
[ 7.394543] uio_module_drv soc:hyperlink1: registered misc device hyperlink1
[ 7.402803] uio_module_drv soc:srio: registered misc device srio
[ OK ] Started Setup Virtual Console.
[FAILED] Failed to mount Debug File System.
See 'systemctl status sys-kernel-debug.mount' for details.
[ OK ] Started alignment.service.
[FAILED] Failed to start Remount Root and Kernel File Systems.
See 'systemctl status systemd-remount-fs.service' for details.
[FAILED] Failed to mount POSIX Message Queue File System.
See 'systemctl status dev-mqueue.mount' for details.
[ OK ] Started Create list of required sta...ce nodes for the current kernel.
[ OK ] Started Load Kernel Modules.
[FAILED] Failed to mount Temporary Directory.
See 'systemctl status tmp.mount' for details.
[DEPEND] Dependency failed for Network Time Synchronization.
[ OK ] Reached target System Time Synchronized.
Mounting Configuration File System...
Starting Apply Kernel Variables...
Starting Create Static Device Nodes in /dev...
Starting udev Coldplug all Devices...
Starting Flush Journal to Persistent Storage...
[FAILED] Failed to mount Configuration File System.
See 'systemctl status sys-kernel-config.mount' for details.
[ OK ] Started Apply Kernel Variables.
[ OK ] Started Create Static Device Nodes in /dev.
[ 8.166671] systemd-journald[131]: Received request to flush runtime journal from PID 1
[ OK ] Reached target Local File Systems (Pre).
Mounting /media/ram...
Mounting /var/volatile...
Starting udev Kernel Device Manager...
[ OK ] Started Flush Journal to Persistent Storage.
[FAILED] Failed to mount /media/ram.
[ 8.363988] random: crng init done
See 'systemctl status media-ram.mount' for details.
[DEPEND] Dependency failed for Local File Systems.
[FAILED] Failed to mount /var/volatile.
See 'systemctl status var-volatile.mount' for details.
[DEPEND] Dependency failed for Bind mount volatile /var/cache.
[DEPEND] Dependency failed for Bind mount volatile /srv.
[DEPEND] Dependency failed for Bind [ 8.559433] keystone-rproc 10800000.dsp: assigned rese0
mount volatile /[ 8.570135] remoteproc remoteproc0: 10800000.dsp is available
var/lib.
[ 8.596524] keystone-rproc 11800000.dsp: assigned reserved memory node dsp_common_cma_pool0
[ 8.607851] remoteproc remoteproc1: 11800000.dsp is available
[DEPEND] Dependency failed for Bind mount volatile /var/spool.
[ 8.624467] keystone-rproc 12800000.dsp: assigned reserved memory node dsp_common_cma_pool0
[ 8.634192] remoteproc remoteproc2: 12800000.dsp is available
[ 8.642804] keystone-rproc 13800000.dsp: assigned reserved memory node dsp_common_cma_pool0
[ 8.653349] remoteproc remoteproc3: 13800000.dsp is available
[ OK ] Started udev Coldplug all Dev[ 8.663182] keystone-rproc 14800000.dsp: assigned re0
ices.
[ 8.673900] remoteproc remoteproc4: 14800000.dsp is available
[ 8.685059] keystone-rproc 15800000.dsp: assigned reserved memory node dsp_common_cma_pool0
[ 8.694325] remoteproc remoteproc5: 15800000.dsp is available
[ 8.702085] keystone-rproc 16800000.dsp: assigned reserved memory node dsp_common_cma_pool0
[ 8.711356] remoteproc remoteproc6: 16800000.dsp is available
[ OK 8.719041] keystone-rproc 17800000.dsp: assigned reserved memory node dsp_common_cm0
m] Started udev [ 8.729015] remoteproc remoteproc7: 17800000.dsp is available
Kernel Device Ma[ 8.736980] davinci-wdt 22f0080.wdt: heartbeat 60 sec
nager.
[ 8.818047] keystone-dsp-mem a0000000.dspmem: registered misc device dspmem
[ 8.835070] 2620738.usb_phy supply vcc not found, using dummy regulator
[ OK ] Found device /dev/ttyS0.
[ 9.234689] keystone-crypto soc:subsys@20c0000:crypto@0: crypto accelerator enabled
[ 9.766611] platform xhci-hcd.0.auto: set dma_pfn_offset00780000
[ 9.818616] usbcore: registered new interface driver usbfs
[ 9.824621] usbcore: registered new interface driver hub
[ 9.830577] usbcore: registered new device driver usb
[ 9.856668] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[ 9.862240] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[ 9.871070] xhci-hcd xhci-hcd.0.auto: hcc params 0x0298f06d hci version 0x100 quirks 0x0200
[ 9.879943] xhci-hcd xhci-hcd.0.auto: irq 34, io mem 0x02690000
[ 9.886602] hub 1-0:1.0: USB hub found
[ 9.890453] hub 1-0:1.0: 1 port detected
[ 9.894746] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[ 9.900332] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[ 9.908138] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 9.916902] hub 2-0:1.0: USB hub found
[ 9.920743] hub 2-0:1.0: 1 port detected
[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.
[ OK ] Reached target Login Prompts.
Starting Synchronize System and HW clocks...
[ OK ] Closed Syslog Socket.
Starting Network Service...
[ OK ] Reached target Timers.
Starting Load/Save Random Seed...
[ OK ] Started Emergency Shell.
Mounting Configuration File System...
[ OK ] Reached target Emergency Mode.
[ OK ] Reached target Sockets.
Starting Create Volatile Files and Directories...
[ OK ] Started Network Service.
[FAILED] Failed to start Synchronize System and HW clocks.
See 'systemctl status sync-clocks.service' for details.
[ OK ] Started Load/Save Random Seed.
[FAILED] Failed to mount Configuration File System.
See 'systemctl status sys-kernel-config.mount' for details.
[ OK ] Started Create Volatile Files and Directories.
Starting Update UTMP about System Boot/Shutdown...
[ OK ] Reached target Network.
[ OK ] Started Update UTMP about System Boot/Shutdown.
Starting Update UTMP about System Runlevel Changes...
[ OK ] Started Update UTMP about System Runlevel Changes.
Welcome to emergPress Enter for maintenance
(or press Control-D to continue):
sh-3.2#