Tribblix: manual page: mount

MOUNT_PCFS(8) Maintenance Commands and Procedures MOUNT_PCFS(8)

NAME

mount_pcfs - mount pcfs file systems

SYNOPSIS

mount -F pcfs [generic_options]
[-o FSType-specific_options] special | mount_point

mount -F pcfs [generic_options]
[-o FSType-specific_options] special mount_point

DESCRIPTION

mount attaches an MS-DOS file system (pcfs) to the file system
hierarchy at the mount_point, which is the pathname of a directory.
If mount_point has any contents prior to the mount operation, these
are hidden until the file system is unmounted.

The pcfs file system supports direct mounting of files containing the
file system as well as block devices. See mount(8) and lofiadm(8).

If mount is invoked with special or mount_point as the only
arguments, mount will search /etc/vfstab to fill in the missing
arguments, including the FSType-specific_options; see mount(8) for
more details.

The special argument can be one of two special device file types:

o A floppy disk, such as /dev/diskette0 or /dev/diskette1.

o A DOS logical drive on a hard disk expressed as device-
name:logical-drive, where device-name specifies the
special block device-file for the whole disk and logical-
drive is either a drive letter (c through z) or a drive
number (1 through 24). Examples are /dev/dsk/c0t0d0p0:c
and /dev/dsk/c0t0d0p0:1.

The special device file type must have a formatted MS-DOS file system
with either a 12-bit, 16-bit, or 32-bit File Allocation Table.

OPTIONS

generic_options

See mount(8) for the list of supported options.

-o

Specify pcfs file system-specific options. The following options
are supported:

clamptime | noclamptime

File timestamps in pcfs cover a range between January 1st
1980 and December 31st 2127. This is not equal to the range
of time_t on Unix for either 32-bit or 64-bit applications.
In particular, 32-bit applications fail with EOVERFLOW errors
on the stat(2) system call when timestamps beyond the range
of 32-bit time_t are encountered. In order to prevent such
spurious failures, pcfs by default clamps timestamps to the
common subset of possible pcfs timestamps and the range
available to 32-bit applications in Unix. The clamptime mount
option therefore is active by default. If you want access to
the full range of possible timestamps on pcfs, mount the file
system with the noclamptime mount option. Note that if
noclamptime is used, only 64-bit applications will have
access to timestamps beyond January 19th 2038, 03:14:06 UTC;
32-bit applications will encounter EOVERFLOW errors.

foldcase | nofoldcase

Force uppercase characters in filenames to lowercase when
reading them from the filesystem. This is for compatibility
with the previous behavior of pcfs. The default is
nofoldcase.

hidden | nohidden

Allow or disallow listing of files with hidden or system bits
set. Option hidden is the default. When nohidden is effect,
hidden and system files are neither visible nor accessible.
Note that PCFS in previous releases of the Solaris operating
system used the nohidden option as the default.

atime | noatime

Enable or disable write access timestamps on DOS-formatted
media. Default for fixed disks is atime, while for removable
media noatime is used. The latter default is so that writes
to flash-based media ("memory sticks") can be minimized, to
prolong lifetime.

timezone=timezone

Timestamps on DOS-formatted media are recorded in the local
time of the recording system. This can cause confusion when
accessing removable media in which the recording and
receiving system use different time zones. Use this option to
force media timestamps to be interpreted for a specific time
zone. The mount_pcfs command converts the given time zone
name into a numerical offset that is passed to the pcfs
kernel module, using the same rules as described in
environ(7) for the TZ environment variable. By default, the
timezone value is taken from the TZ environment variable.

FILES

/etc/mnttab

table of mounted file systems

/etc/vfstab

list of default parameters for each file system

NOTES