mount 可以查看磁盘分区情况、卸载、挂载硬盘。查看硬盘分区123456$ mount/dev/disk1 on / (hfs, local, journaled)devfs on /dev (devfs, local, nobrowse)map -hosts on /net (autofs, nosuid, automounted, nobrowse)map auto_home on /home (autofs, automounted, nobrowse)卸载1$ sudo umount /home/ec2-user/data挂载1$ sudo mount /dev/xvdf /data