NAME

dossrv, 9660srv, a:, b:, c:, eject − DOS and ISO9660 file systems

SYNOPSIS

­dossrv [ ­-v ] [ ­-s ] [ ­-f ­file ] [ ­service ]

­9660srv [ ­-v ] [ ­-s ] [ ­-f ­file ] [ ­service ]

­a:

­b:

­c:

­eject [ ­n ]

DESCRIPTION

­Dossrv is a file server that interprets DOS file systems.  A single instance of ­dossrv can provide access to multiple DOS disks simultaneously. 

­Dossrv posts a file descriptor named ­service (default dos) in the ­/srv directory.  To access the DOS file system on a device, use ­mount with the ­spec argument (see bind(1)) the name of the file holding raw DOS file system, typically the disk. If ­spec is undefined in the mount, ­dossrv will use ­file as the default name for the device holding the DOS system. 

Normally ­dossrv creates a pipe to act as the communications channel between itself and its clients.  The ­-s flag instructs ­dossrv to use its standard input and output instead.  The kernels use this if they are booting from a DOS disk.  This flag also prevents the creation of an explicit service file in /srv. 

The ­-v flag causes verbose output for debugging. 

The shell script ­a: contains

unmount /n/a: >[2] /dev/null
mount -c /srv/dos /n/a: /dev/fd0disk

and is therefore a shorthand for mounting a floppy disk in drive A.  The scripts ­b: and ­c: are similar. 

­9660srv is identical to ­dossrv in specification, except that it interprets ISO9660 CD-ROM file systems instead of DOS file systems. 

If the floppy drive has an ejection motor, ­eject will spit out the floppy from drive n, default 0.

EXAMPLE

Mount a floppy disk with a DOS file system on it. 

dossrv
a:

SEE ALSO

kfs(4)

SOURCE

­/sys/src/cmd/dossrv
­/sys/src/cmd/9660srv
­/rc/bin/eject

Plan 9  —  April 04, 1995