/usr/share/doc/dosbox
/usr/share/menu/dosbox
/usr/bin/dosbox

dosbox -conf /path/to/dosbox.conf
dosbox -conf /home/<user>/DOSBox/dosbox.conf

dosbox -conf /home/<user>/DOSBox/dosbox.conf-tim
dosbox -conf /home/<user>/DOSBox/dosbox.conf-xwing


Mount

mount is the command you use to make directories and drives on your own system available to DOSBox.
Syntax

mount drive-letter real-path [options]...
Options

-t type
specifies the type of the mount. Supported types are dir (default), floppy and cdrom. 

-label drivelabel
sets the label of the drive. This is needed on some systems if the CD label isn't read correctly. It may be useful when a program can't find its CD-ROM. 

-aspi
forces to use the aspi layer. Only valid if mounting a cdrom on Windows systems with an ASPI-Layer. 

-ioctl
forces to use ioctl commands. Only valid if mounting a cdrom on Windows systems which support them (Win2000/XP/NT). 

-usecd number
forces to use SDL cdrom support for drive number. This number can be found by running mount -cd. Valid on all systems. 

-cd
displays all detected CD-ROM drives and their numbers. Use with mount -usecd. 

-size drivesize
sets the size of the drive. 

-freesize size-in-mb
sets the amount of free space available on a drive in MB's. This is a more simple version of -size. 

-u
removes the mount. Doesn't work for Z:\. 
Examples

To make the directory C:\games on your system available as the C: drive in DOSBox:
mount C "C:\games" 

To mount the directory C:\floppy as disketter drive A: in DOSBox:
mount A "C:\floppy" -t floppy 

To mount CD-ROM drive E: as drive D: in DOSBox:
mount D "E:\" -t cdrom 

To mount the directory /home/dos/dosgames as drive C: in DOSBox:
mount C "/home/dos/dosgames" 

CDROM support under DOSBox

Many people experience problems with getting games running which require a cdrom. If you are one of them read this section.

Basic cdrom support:
mount D D:\ -t cdrom 

SDL-cdrom support:
mount D D:\ -t cdrom -usecd 0 

Ioctl cdrom support:
mount D D:\ -t cdrom -usecd 0 -ioctl 

ASPI cdrom support:
mount D D:\ -t cdrom -usecd 0 -aspi 

Change the 0 in -usecd 0 to the number of your cdrom drive reported by mount -cd

Try basic support first. Second in line is SDL-support and finally IOCTL/ASPI support.

IOCTL support is for Windows NT/2000/XP/2003 or linux.
Mounting an ISO image

You can also dump your original CDs to ISO images and mount them in DosBox. This may help to bypass some issues with CD checking (e.g. with Command & Conquer: Tiberian Dawn). You can do it this way:
imgmount D "c:\images\game.iso" -t iso

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Q: The game/application can't find its CDROM.

A: Be sure to mount the CDROM with the "-t cdrom" switch. Also try adding the correct label with the "-label CD-label" option.

Alternatively, you can try copying the files of the CDROM and into a directory on the harddisk. Then use the -t cdrom and -label option to trick DOSBox (and the game/application) into using the directory as if it was a real CDROM:
Z:>mount D "C:\DB-Games\CDs\MasterOfOrion" -t cdrom -label "MOORION"
MSCDEX: Mounted subdirectory: limited support.
Drive D is mounted as CDRom.

Also look for an .ini file in your game directory. Sometimes it specifies what drive to look for as the CD-ROM. Edit it to suit your needs.

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Special Keys

Note: These are the default keybindings. They can be changed using the keymapper.
ALT-ENTER 
Switch to full-screen (and back). 
CTRL-F1 
Show the keymapper configuration screen, 
CTRL-F4 
Update cached information about mounted drives. Useful if you changed something on a mounted drive outside of DOSBox. Also cycles through disk images mounted using imgmount. 
CTRL-F5 
Save a screenshot (goes to capture folder). 
CTRL-ALT-F5 
Start/Stop recording of AVI video. NOTE: You may well have some problems with this, please see DOSBox video recording for more information. 
CTRL-F6 
Start/Stop recording sound output to a wave file (goes to capture folder). 
CTRL-ALT-F7 
Start/Stop recording of OPL commands. 
CTRL-ALT-F8 
Start/Stop the recording of raw MIDI commands. 
CTRL-F7 
Decreases frameskip. 
CTRL-F8 
Increases frameskip. 
CTRL-F9 
Kill (close) DOSBox. 
CTRL-F10 
Capture/Release the mouse (if you need to use the mouse within DOSBox). 
CTRL-F11 
Decrease DOSBox cycles (slows down the emulation). 
CTRL-F12 
Increase DOSBox cycles (speeds up the emulation). 

For Linux you have to use additionally + [win] for the same result
