$ sudo umount /mnt/ /mnt was not found in /proc/mounts /mnt was not found in /proc/mounts 解决: umount 时使用 -l 命令. $ sudo umount -l /mnt/ NFS的安装配置:centos 5 :yum install nfs-utils portmapcentos 6 :yum install nfs-utils rpcbind本节是使用centos 6的配置过程:设备:两台 cen…