pfs_fstab(5)

NAME

pfs_fstab, mtab — static file system mounting table, mounted file systems table

SYNOPSIS

/etc/pfs_fstab

/etc/mtab

DESCRIPTION

The /etc/pfs_fstab file contains entries for CD-ROM file systems and disc images to mount using the pfs_mount(1M) command, which is normally invoked by rc(1M) script at boot time. This file is used by various utilities such as pfs_mount and pfs_umount.

The /etc/mtab file contains entries for file systems currently mounted, and is read by programs using the routines described in getmntent(3X). umount (see mount(1M)) removes entries from this file.

Each entry consists of a line of the form:

filesystem    directory    type    options    freq    pass

filesystem

is the pathname of a raw or block-special device, the name of a remote file system in host:pathname form, or the name of a file created with MakeDisc.

directory

is the pathname of the directory on which to mount the file system.

type

is the file system type, which can be one of:

pfs-iso9660: to mount a device as iso9660.
pfs-hsfs: to mount a device as hsfs.
pfs-rrip: to mount a device as rrip.
pfs-nfs: to mount an exported PFS file system

options

contains a comma-separated list (no spaces) of mounting options, some of which can be applied to all types of file systems, and others which only apply to specific types.

options valid on all file systems:

ro: Even if not specified, this option is implied.
suid|nosuid: Setuid execution allowed or disallowed.
bg|fg: If the first attempt fails, retry in the background, or, in the foreground.
retry=n: The number of times to retry the mount operation.
rsize=n: Set the read buffer size to n bytes.
timeo=n: Set the PFS timeout to n tenths of a second.
retrans=n: The number of PFS retransmissions.
soft|hard: Return an error if the server does not respond, or continue the retry request until the server responds.
intr: Allow keyboard interrupts on hard mounts.

options specific to iso9660 and hsfs file systems:

xlat=xlat_flags: xlat_flags is a colon (:) separated list of translation options. Currently supported are no_version, dot_version, lower_case, and unix.

freq

is the interval (in days) between dumps. For a PFS file system, this should be 0.

pass

is the fsck(1M) pass in which to check the partition. For a PFS file system, this should be 0.

A pound-sign (#) as the first character indicates a comment line which is ignored by routines that read this file. The order of records in /etc/pfs_fstab is important because fsck, mount, and umount process the file sequentially; an entry for a file system must appear after the entry for any file system it is to be mounted on top of.

EXAMPLES

/dev/sr0 /cd-rom pfs-iso9660 ro,suid 0 0

example: /home/user /home/user pfs-nfs ro,hard,fg 0 0

WARNINGS

PFS is obsolete and no longer supported on any HP-UX release. Delivery of PFS interfaces will be discontinued in the next HP-UX release.

PFS, from Young Minds, Inc. (now defunct), was originally adopted by HP to provide accessibility to Rock Ridge Interchange file system format on CD-ROM file systems. The equivalent functionality is now provided via the HP-UX CDFS file system type and HP-UX's standard file systems commands.

PFS has known functionality and performance problems. HP customers are urged to stop using the PFS interfaces, including these interfaces, /etc/pfs_fstab and /etc/mtab. Customers should move to accessing all CD-ROM file system formats by using the standard HP-UX commands, specifying the file system type as cdfs. For example, to mount a CD-ROM file system, use:

mount -F cdfs /dev/dsk/c0t0d4 /cdrom

There is no need to treat the cdfs file system type differently from any other file system type, therefore no special daemons or commands are required to access the variety of CD-ROM file system formats.

See mount(1M) and mount_cdfs(1M).

AUTHOR

pfs_fstab was developed by Young Minds, Inc.

FILES

/etc/pfs_fstab
/etc/mtab

pfs_fstab(5)

Technical documentation

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