harmony 鸿蒙umount
umount
Command Function
This command is used to unmount a file system.
Syntax
umount [-a [-t TYPE]] [dir]
Parameters
Table 1 Parameter description
| Parameter | Description | Value Range |
|---|---|---|
| –help | Displays the parameters supported by the umount command. | N/A |
| -a | Unmounts all file systems mounted. | N/A |
| -t | Used together with the -a option to restrict the file systems specified by -a, allowing only the file system specified by -t to be unmounted. | N/A |
| dir | Specifies the directory from which the file system is to be unmounted. | Directory mounted with the file system |
Usage Guidelines
By specifying the dir parameter in the unmount command, you can unmount the specified file system.
Note
The shell does not support this command. mksh supports it. To switch to mksh, run cd bin and ./mksh.
Example
Run the following commands:
umount ./nfs
umount -a -t nfs
Output
Example 1: Unmount the file system from ./nfs.
OHOS:/$ umount ./nfs/
umount ok
Example 2: Unmount all NFS directories.
OHOS:/$ umount -a -t nfs
umount ok
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