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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 <> Red Hat March 13 2007 USERMOUNT(1)

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FSTAB(5)						     Linux Programmer's Manual							  FSTAB(5)

fstab - static information about the filesystems SYNOPSIS
#include <fstab.h> DESCRIPTION
The file fstab contains descriptive information about the various file systems. fstab is only read by programs, and not written; it is the duty of the system administrator to properly create and maintain this file. Each filesystem is described on a separate line; fields on each line are separated by tabs or spaces. Lines starting with '#' are comments. The order of records in fstab is important because fsck(8), mount(8), and umount(8) sequentially iterate through fstab doing their thing. The first field, (fs_spec), describes the block special device or remote filesystem to be mounted. For ordinary mounts it will hold (a link to) a block special device node (as created by mknod(8)) for the device to be mounted, like `/dev/cdrom' or `/dev/sdb7'. For NFS mounts one will have <host>:<dir>, e.g., `'. For procfs, use `proc'. Instead of giving the device explicitly, one may indicate the (ext2 or xfs) filesystem that is to be mounted by its UUID or volume label (cf. e2label(8) or xfs_admin(8)), writing LABEL=<label> or UUID=<uuid>, e.g., `LABEL=Boot' or `UUID=3e6be9de-8139-11d1-9106-a43f08d823a6'. This will make the system more robust: adding or removing a SCSI disk changes the disk device name but not the filesystem volume label. The second field, (fs_file), describes the mount point for the filesystem. For swap partitions, this field should be specified as `none'. If the name of the mount point contains spaces these can be escaped as `40'. The third field, (fs_vfstype), describes the type of the filesystem. Linux supports lots of filesystem types, such as adfs, affs, autofs, coda, coherent, cramfs, devpts, efs, ext2, ext3, hfs, hpfs, iso9660, jfs, minix, msdos, ncpfs, nfs, ntfs, proc, qnx4, reiserfs, romfs, smbfs, sysv, tmpfs, udf, ufs, umsdos, vfat, xenix, xfs, and possibly others. For more details, see mount(8). For the filesystems currently supported by the running kernel, see /proc/filesystems. An entry swap denotes a file or partition to be used for swapping, cf. swapon(8). An entry ignore causes the line to be ignored. This is useful to show disk partitions which are currently unused. The fourth field, (fs_mntops), describes the mount options associated with the filesystem. It is formatted as a comma separated list of options. It contains at least the type of mount plus any additional options appropriate to the filesystem type. For documentation on the available options for non-nfs file systems, see mount(8). For documentation on all nfs-spe- cific options have a look at nfs(5). Common for all types of file system are the options ``noauto'' (do not mount when "mount -a" is given, e.g., at boot time), ``user'' (allow a user to mount), and ``owner'' (allow device owner to mount), and ``_netdev'' (device requires network to be available). The ``owner'' and ``_netdev'' options are Linux-specific. For more details, see mount(8). The fifth field, (fs_freq), is used for these filesystems by the dump(8) command to determine which filesystems need to be dumped. If the fifth field is not present, a value of zero is returned and dump will assume that the filesystem does not need to be dumped. The sixth field, (fs_passno), is used by the fsck(8) program to determine the order in which filesystem checks are done at reboot time. The root filesystem should be specified with a fs_passno of 1, and other filesystems should have a fs_passno of 2. Filesystems within a drive will be checked sequentially, but filesystems on different drives will be checked at the same time to utilize parallelism available in the hardware. If the sixth field is not present or zero, a value of zero is returned and fsck will assume that the filesystem does not need to be checked. The proper way to read records from fstab is to use the routines getmntent(3). FILES
/etc/fstab SEE ALSO
getmntent(3), mount(8), swapon(8), fs(5) nfs(5) HISTORY
The ancestor of this fstab file format appeared in 4.0BSD. Linux 2.2 15 June 1999 FSTAB(5)
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