ubuntu作为客户端，嵌入式设备作为服务端1、ubuntu配置1.1、clientserices1.2、防火墙配置NFS端口为2049，如果没有允许可以关闭防火墙或执行sudo ufw allow nfs或sudo ufw allow 20492、嵌入式设备配置2.1、kernel配置配置kernel支持NFS(服务端和客户端，版本V2和V3)，如果设备只作为客户端可以不用配置NFSserver support2.1.1、error: unknown field 'flush' specified in initializerfs/nfsd/export.c:259:2: error: unknown field 'flush' specified in initializer .flush = expkey_flush, ^ fs/nfsd/export.c:259:12: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types] .flush = expkey_flush, ^~~~~~~~~~~~ fs/nfsd/export.c:259:12: note: (near initialization for 'svc_expkey_cache_template.match') cc1: some warnings being treated as errors CC fs/nfsd/nfscache.o make[2]: *** [scripts/Makefile.build:333：fs/nfsd/export.o] 错误 12.1.2、error: implicit declaration of functionfs/nfsd/filecache.c:520:18: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types] .handle_event = nfsd_file_fsnotify_handle_event, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/nfsd/filecache.c