In App Mount, click list item, dialog right-top switch mount/umount.

在应用挂载器中点击列表项，在出现的对话框右上角进行挂载/弹出操作。

Unmount any file systems in the volume group using the umount command.

使用umount命令来卸载卷组中所有文件系统。

Then, in every script that makes reference to umount, make sure that it is being called with the -r option.

然后，在每个引用umount的脚本里，请确保调用时带有选项- r。

The standard Linux version of the umount command includes a lazy unmount option, -l, to help unmount file systems that are in use.

umount命令的标准Linux版本包含一个延迟卸载选项- l，它有助于卸载正在使用的文件系统。