Mounting cdrom on DG/UX

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Here's some cmd output: bash-2.05# ls /dev/dsk/* /dev/dsk/c0t0d0s0 /dev/dsk/c0t0d0s4 /dev/dsk/c0t1d0s0 /dev/dsk/c0t1d0s4 /dev/dsk/c0t0d0s1 /dev/dsk/c0t0d0s5 /dev/dsk/c0t1d0s1 /dev/dsk/c0t1d0s5 /dev/dsk/c0t0d0s2 /dev/dsk/c0t0d0s6 /dev/dsk/c0t1d0s2 /dev/dsk/c0t1d0s6 /dev/dsk/c0t0d0s3 ...

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Hi everybody: I have Solaris 8 installed on my little Enterprise 3500 and, for a cruel fate of the destiny, Im the admin.... Here is the problem: a week ago I took out a CD from the CDROM drive in an abnormal way. I inserted a clip in the little hole in the front of the drive because the button...

10. UNIX for Dummies Questions & Answers

Cdrom

How would I mount a cdrom drive in Unix

LEARN ABOUT OSF1

ffm

ffm(4)							     Kernel Interfaces Manual							    ffm(4)

NAME

       ffm - File-on-File Mounting File System

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       fattach():  XSH4.2

       fdetach():  XSH4.2

       Refer to standards(5) for more information about industry standards and their associated tags.

DESCRIPTION

       The  File-on-File  Mounting  (FFM)  file  system  allows regular files, character device special files, or block device special files to be
       mounted on regular files or directories.

       The ffm file system is used with the System V Release 4-compatible library functions fattach(3) and detach(3) to enable a user  process	to
       have  one file descriptor pointing to the data associated with a named file and a named STREAM.	When one name is active, the other name is
       invisible.

       For example, a user application mounts a file descriptor from a file named a_file on a file that is named b_file.  The file  descriptor	of
       file  a_file is accessible by two names, a_file and b_file.  However, when the user application attempts to open either file, only the file
       descriptor for a_file is returned:  the	file descriptor for  b_file is invisible while a_file is mounted over it.

       The fattach(3) function mounts a file over another; the fdetach(3) function removes the association so the underlying file can be accessed.

       The user process can also mount a regular file over a regular file in order for it to be a clone of the underlying file.  [Do  not  confuse
       this  clone with an AdvFS clone fileset.]  In this case, the clone file is a character device special file that is associated with a device
       driver that handles such files.	As a result, a user can specify one clone entry and then open this device multiple times.  Each  time  the
       device is opened, a new vnode is obtained but exactly the same device behavoir is also obtained:  the behavior is cloned.

       That mount occurs if the -o clone option is used in the mount command or as an element of a ffm line in the /etc/fstab file.  In this case,
       there are two files with identical contents, separate names, and separate file descriptors.

EXAMPLES

       The following example shows an ffm mount of a_file on b_file.  If  the du command were executed, its display would show a_file in the  file
       system column and b_file in the Mounted on column:

       # mount -t ffm a_file b_file

       The following example shows an ffm mount of a_file on b_file, with the mount -o clone option specifying that a_file is a clone of b_file.

       # mount -t ffm -o clone a_file b_file

RESTRICTIONS

       The user process must be the root user or must be the owner of the files and must have write permissions for the files.

       [Tru64  UNIX]  Before you can use the ffm file system, you must configure the kernel option FFM_FS into the kernel.  See System Administra-
       tion for information about configuring the kernel.

RELATED INFORMATION

       Commands: fdetach(8), mount(8)

       Functions: fattach(3), fdetach(3), isastream(3), chmod(2), mount(2)

       Interfaces: streamio(7)

       Files: fstab(4)

       Standards: standards(5) delim off

																	    ffm(4)

UNIX for Dummies Questions & Answers