NAME

mnttab − mounted file system table

SYNOPSIS

#include <mnttab.h>

DESCRIPTION

mnttab resides in directory /etc and contains a table of devices, mounted by the mount(1M) command, in the following structure as defined by <mnttab.h>:

structmnttab {
charmt_dev[32];
charmt_filsys[32];
shortmt_ro_flg;
time_tmt_time;
char mt_fstyp[16];
char mt_mntopts[64];
};

Each entry is 150 bytes in length; the first 32 bytes are the null-padded name of the place where the special file is mounted; the next 32 bytes represent the null-padded root name of the mounted special file; the next 6 bytes contain the mounted special file’s read/write permissions and the date on which it was mounted the following bytes are the null-padded name of the file system type; and the remaining 64 bytes are the null-padded string of mount options.

The maximum number of entries in mnttab is based on the system parameter NMOUNT located in /usr/crs/uts/cf/master.c which defines the number of allowable mounted special files. 

SEE ALSO

mount(1M), setmnt(1M)

September 29, 2021