[unix-history] / usr / man / man8 / mount.8

.TH MOUNT 8  "4 February 1983"
.UC 4
.SH NAME
mount, umount \- mount and dismount file system
.SH SYNOPSIS
.B /etc/mount
[ special name [
.B \-r
] ]
.PP
.B /etc/mount
.B \-a
.PP
.B /etc/umount
special
.PP
.B /etc/umount
.B \-a
.SH DESCRIPTION
.I Mount
announces to the system that a removable file system
is present on the device
.I special.
The file
.I name
must exist already; it
must be a directory (unless the root of the
mounted file system is not a directory).
It becomes the name of the newly mounted root.
The optional argument
.B \-r
indicates that the file system
is to be mounted read-only.
.PP
.I Umount
announces to the system that the removable file system previously
mounted on device
.I special
is to be removed.
.PP
If the
.B \-a
option is present for either
.I mount
or
.I umount,
all of the file systems described in
.I /etc/fstab
are attempted to be mounted or unmounted.
In this case,
.I special
and
.I name
are taken from
.I /etc/fstab.
The
.I special
file name from
.I /etc/fstab
is the block special name.
.PP
These commands
maintain a table of mounted devices in
.I /etc/mtab.
If invoked without an argument,
.I mount
prints the table.
.PP
Physically write-protected and magnetic tape file
systems must be mounted read-only
or errors will occur when access times are updated,
whether or not any explicit write is attempted.
.SH FILES
/etc/mtab	mount table
.br
/etc/fstab	file system table
.SH "SEE ALSO"
mount(2),
mtab(5), fstab(5)
.SH BUGS
Mounting file systems full of garbage will crash the system.
.br
Mounting a root directory on a non-directory
makes some apparently good pathnames invalid.
Commit	Line	Data
bea22c67 C	1	.TH MOUNT 8 "4 February 1983"
	2	.UC 4
	3	.SH NAME
	4	mount, umount \- mount and dismount file system
	5	.SH SYNOPSIS
	6	.B /etc/mount
	7	[ special name [
	8	.B \-r
	9	] ]
	10	.PP
	11	.B /etc/mount
	12	.B \-a
	13	.PP
	14	.B /etc/umount
	15	special
	16	.PP
	17	.B /etc/umount
	18	.B \-a
	19	.SH DESCRIPTION
	20	.I Mount
	21	announces to the system that a removable file system
	22	is present on the device
	23	.I special.
	24	The file
	25	.I name
	26	must exist already; it
	27	must be a directory (unless the root of the
	28	mounted file system is not a directory).
	29	It becomes the name of the newly mounted root.
	30	The optional argument
	31	.B \-r
	32	indicates that the file system
	33	is to be mounted read-only.
	34	.PP
	35	.I Umount
	36	announces to the system that the removable file system previously
	37	mounted on device
	38	.I special
	39	is to be removed.
	40	.PP
	41	If the
	42	.B \-a
	43	option is present for either
	44	.I mount
	45	or
	46	.I umount,
	47	all of the file systems described in
	48	.I /etc/fstab
	49	are attempted to be mounted or unmounted.
	50	In this case,
	51	.I special
	52	and
	53	.I name
	54	are taken from
	55	.I /etc/fstab.
	56	The
	57	.I special
	58	file name from
	59	.I /etc/fstab
	60	is the block special name.
	61	.PP
	62	These commands
	63	maintain a table of mounted devices in
	64	.I /etc/mtab.
65	If invoked without an argument,
66	.I mount
67	prints the table.
68	.PP
69	Physically write-protected and magnetic tape file
70	systems must be mounted read-only
71	or errors will occur when access times are updated,
72	whether or not any explicit write is attempted.
73	.SH FILES
74	/etc/mtab mount table
75	.br
76	/etc/fstab file system table
77	.SH "SEE ALSO"
78	mount(2),
79	mtab(5), fstab(5)
80	.SH BUGS
81	Mounting file systems full of garbage will crash the system.
82	.br
83	Mounting a root directory on a non-directory
84	makes some apparently good pathnames invalid.