A/UX® Programmer's Reference Sections

fstab(4) fstab(4)
NAME
f stab - static information about file systems
SYNOPSIS
iinclude
DESCRIPTION
The file /etc/fstab describes the file systems and swapping
partitions used by the local machine. It can be modified with a
text editor by the system administrator. The file is read by commands
that mount, unmount, and check the consistency of file systems;
it is also read by the system in providing swap space. Because
there is an appropriate mount request in the / etc / rc
startup file, any file systems described in /etc/fstab (other
than those of type ignore or with mount option noauto) are
mounted automatically whenever multi-user mode is entered.
1
The /etc/fstab file consists of a number of lines in the following
format
fsname dir type opts freq passno
For example
/dev/xyOa / 5.2 rw,noquota 1 2
The fieldfreq is optionally used by dump. bsd(lM) to help report
which file systems need to be dumped. passno is used by
fsck(lM) to help select which file systems to check. For example,
fsck -p2 checks all the 5.2 file systems listed in
/etc/fstab withpassno greater than or equal to 2.
The entries from this file are accessed using the routines in
getmntent(3), which returns a structure of the following form:
struct mntent {
char *mnt_fsname; /* file system name */
char *mnt dir; /* file system path prefix */
char *mnt _type; /* 4.2, 5.2, nfs, swap,
or ignore */
char *mnt _opts; /* rw, ro, noquota, quota, noauto,
hard, soft */
int mnt_freq; /* dump frequency, in days */
int mnt _passno; /* pass i on parallel fsck */
} ;
Fields are separated by white space; a i as the first nonwhite character
indicates a comment.
February, 1990
RevisionC