Disk and Network Filesystems
This page provides a detailed view of the filesystems listed in /etc/fstab and from this page you can edit mount points, create new mount points, umount and mount partitions, and add execute and suid restrictions to specific mount points for security. This module configures the /etc/fstab file.
To edit one of the listed filesystems, simply click on it. From there, you'll be able to mount and unmount the filesystem, as well adjust several filesystem options. The available options may vary depending on the operating system and the media.
Native Filesystem Mount Details
In the upper table on the Edit Mount page, Webmin offers access to several general options that are applicable for all filesystems.
Mounted As is the mount point on which the filesystem will be located in your system's directory hierarchy. A mount point is a directory, made like any other directory using the mkdir command. When mounting a filesystem, the OS checks this value to decide where the contents of the filesystem should be located in the hierarchy. Some mount points, such as /usr and /, have a specific meaning for the OS and must not be changed. While several other mount points are so named because of long standing Unix tradition, such as /home and /usr/local. Nonetheless, most mount points can be named in any way that suits your environment, just be careful when diverging from the historically accepted names.
Save mount? Provides options for whether to save the current mount point. Generally, when creating a new mount point, or modifying and old one, you will want to save and mount at boot. However, if the media is a removable media, like floppy disk or CD ROM, you will likely choose just to save the mount. Finally, if you are only creating a temporary filesystem, such as for mounting an ISO image as a filesystem, you'll have no need to save the mount point.
Mount now? Allows you to choose whether to mount or unmount the filesystem now.
Check filesystem at boot? Selects whether the filesystem will be checked using fsck on system boot, and if so, what priority the check should receive. Note that some filesystem types, such as journalled filesystems like ReiserFS and XFS, do not usually need to be checked. Also, read only filsystems, such as those of CD ROMs, should not be checked.
Linux Native Filesystem allows you to choose the device that will be associated with the mount point. Some modern Linux distributions use labeled devices for this, while others simply identify the device directly. The dropdown menu provides access to all of the known disk devices. You may also enter a device or ISO filename directly in the text entry field by clicking the Other devices radio button.
Advanced Mount Options
The lower table on this page displays the available mount options and indicates which are enabled.
Read-only? sets the read only flag for the filesystem. If Yes the filesystem will not allow writing, even by the root user. CD ROM drives and some other media will always have this flag enabled, regardless of the setting in fstab.
Buffer writes to filesystem? allows you to disable write buffering for this device.