使用最新sdk 4.00.00.04。基于EVMK2H Rev4.0 demo板。Linux 启动异常，报如下错误
[FAILED] Failed to mount /media/ram.
See 'systemctl status media-ram.mount' for details.
[DEPEND] Dependency failed for Local File Systems.
[ OK ] Started udev Kernel Device Manager.
[ 8.955425] systemd-journald[146]: Received request to flush runtime journal from PID 1
[ OK ] Reached target Timers.
[ OK ] Reached target Login Prompts.
[ 9.006733] random: fast init done
Starting Network Service...
[ OK ] Closed Syslog Socket.
Starting Rebuild Dynamic Linker Cache...
[ OK ] Started Emergency Shell.
Starting Rebuild Journal Catalog...
Starting Commit a transient machine-id on disk...
[ OK ] Reached target Emergency Mode.
[ OK ] Reached target Sockets.
Starting Load/Save Random Seed...
[ OK ] Started Network Service.
[ OK ] Started Flush Journal to Persistent Storage.
[FAILED] Failed to start Rebuild Journal Catalog.
See 'systemctl status systemd-journal-catalog-update.service' for details.
[FAILED] Failed to start Commit a transient machine-id on disk.
See 'systemctl status systemd-machine-id-commit.service' for details.
[ OK ] Started Load/Save Random Seed.
Starting Create Volatile Files and Directories...
[ OK ] Reached target Network.
[FAILED] Failed to start Create Volatile Files and Directories.
See 'systemctl status systemd-tmpfiles-setup.service' for details.
Starting Network Time Synchronization...
Starting Update UTMP about System Boot/Shutdown...
[ OK ] Started Update UTMP about System Boot/Shutdown.
Starting Update UTMP about System Runlevel Changes...
[ OK ] Started Update UTMP about System Runlevel Changes.
[ OK ] Started Network Time Synchronization.
Starting Synchronize System and HW clocks...
[ OK ] Reached target System Time Synchronized.
[FAILED] Failed to start Synchronize System and HW clocks.
See 'systemctl status sync-clocks.service' for details.
[FAILED] Failed to start Rebuild Dynamic Linker Cache.
See 'systemctl status ldconfig.service' for details.
[FAILED] Failed to start Rebuild Hardware Database.
See 'systemctl status systemd-hwdb-update.service' for details.
Starting udev Coldplug all Devices...
Starting Update is Completed...
[FAILED] Failed to start Update is Completed.
直接使用sdk中原始Bin，tisdk-server-rootfs-image-k2hk-evm.ubi，uboot环境变量采用默认。最后linux进入emergency mode。
请问最新sdk有bug还是有什么特殊设置？