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userformat(1) [centos man page]

USERMOUNT(1)						      General Commands Manual						      USERMOUNT(1)

usermount - A graphical tool to mount, unmount and format filesystems. SYNOPSIS
usermount [ options ] userformat [ options ] device DESCRIPTION
usermount is a graphical tool to allow users to easily manage removable media, such as floppy disks or zip disks. When the tool starts up, it scans /etc/fstab for all filesystems that have been configured to allow users to mount and unmount them. The filesystem can be mounted or unmounted by pressing the toggle button labeled Mount. Also, if the user has the appropriate permissions for the device, the Format button will be active. This allows the user to format disks using fdformat and create a new filesystem of the type listed (using mkfs with the appropriate option). Naturally, the user will be prompted for confirmation before actually destroying data on the device. Note that if a device is already mounted, the format button is inactive for all entries that share the same device. When run as root, usermount displays all of the entries in /etc/fstab rather than just the ones with the user option. Invoking userformat device allows formatting device, as if by selecting device in the userformat window, and by clicking the Format button. OPTIONS
This program has no command line options of it's own, but it does take the standard X program options like -display and such. See the X(1) man page for some of the common options. FILES
/etc/fstab The system file describing the mountable filesystems. SEE ALSO
mount(8), fdformat(8), mkfs(8), fstab(5) X(1) BUGS
Mount entries with a filesystem type of iso9660 are outright considered CD-ROMs and the format button is always disabled. Mount entries for swap files or partitions are also ignored. A nice feature might be to allow root to turn swap on and off for swap parti- tions. AUTHOR
Otto Hammersmith <otto@redhat.com> Red Hat March 13 2007 USERMOUNT(1)

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UMOUNT(8)						       System Administration							 UMOUNT(8)

umount - unmount file systems SYNOPSIS
umount [-hV] umount -a [-dflnrv] [-t vfstype] [-O options] umount [-dflnrv] {dir|device}... DESCRIPTION
The umount command detaches the file system(s) mentioned from the file hierarchy. A file system is specified by giving the directory where it has been mounted. Giving the special device on which the file system lives may also work, but is obsolete, mainly because it will fail in case this device was mounted on more than one directory. Note that a file system cannot be unmounted when it is `busy' - for example, when there are open files on it, or when some process has its working directory there, or when a swap file on it is in use. The offending process could even be umount itself - it opens libc, and libc in its turn may open for example locale files. A lazy unmount avoids this problem. Options for the umount command: -V Print version and exit. -h Print help message and exit. -v Verbose mode. -n Unmount without writing in /etc/mtab. -r In case unmounting fails, try to remount read-only. -d In case the unmounted device was a loop device, also free this loop device. -i Don't call the /sbin/umount.<filesystem> helper even if it exists. By default /sbin/umount.<filesystem> helper is called if one exists. -a All of the file systems described in /etc/mtab are unmounted. (With umount version 2.7 and later: the proc filesystem is not unmounted.) -t vfstype Indicate that the actions should only be taken on file systems of the specified type. More than one type may be specified in a comma separated list. The list of file system types can be prefixed with no to specify the file system types on which no action should be taken. -O options Indicate that the actions should only be taken on file systems with the specified options in /etc/fstab. More than one option type may be specified in a comma separated list. Each option can be prefixed with no to specify options for which no action should be taken. -f Force unmount (in case of an unreachable NFS system). (Requires kernel 2.1.116 or later.) -l Lazy unmount. Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. (Requires kernel 2.4.11 or later.) --no-canonicalize Don't canonicalize paths. For more details about this option see the mount(8) man page. --fake Causes everything to be done except for the actual system call; this ``fakes'' unmounting the filesystem. It can be used to remove entries from /etc/mtab that were unmounted earlier with the -n option. THE LOOP DEVICE
The umount command will free the loop device (if any) associated with the mount, in case it finds the option `loop=...' in /etc/mtab, or when the -d option was given. Any pending loop devices can be freed using `losetup -d', see losetup(8). NOTES
The syntax of external umount helpers is: /sbin/umount.<suffix> {dir|device} [-nlfvr] [-t type.subtype] where the <suffix> is filesystem type or a value from "uhelper=" or "helper=" mtab option. The -t option is used for filesystems with subtypes support (for example /sbin/mount.fuse -t fuse.sshfs). The uhelper= (unprivileged umount helper) is possible to use when non-root user wants to umount a mountpoint which is not defined in the /etc/fstab file (e.g devices mounted by udisk). The helper= mount option redirects all umount requests to the /sbin/umount.<helper> independently on UID. FILES
/etc/mtab table of mounted file systems SEE ALSO
umount(2), mount(8), losetup(8). HISTORY
A umount command appeared in Version 6 AT&T UNIX. AVAILABILITY
The umount command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux March 2010 UMOUNT(8)
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