More information about the Segmentation Fault issue. I ran dosbox through gdb, mounted the cdrom using the -usecd 0 parameter and reproduced the segfault:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1221731968 (LWP 13707)]
0x080b4c09 in CDROM_Interface_SDL::GetMediaTrayStatus (this=0x9ba6ce8,
mediaPresent=@0xbfffc0bd, mediaChanged=@0xbfffc0be, trayOpen=@0xffffffff)
at cdrom.cpp:116
116 mediaPresent = (cd->status!=CD_TRAYEMPTY) && (cd->status!=CD_ERROR);

Here is a backtrace:

#0 0x080b4c09 in CDROM_Interface_SDL::GetMediaTrayStatus (this=0x9ba6ce8,
mediaPresent=@0xbfffc0bd, mediaChanged=@0xbfffc0be, trayOpen=@0xffffffff)
at cdrom.cpp:116
#1 0x080b3693 in CMscdex::GetMediaStatus (this=0x9b9d9f8, subUnit=0 '\0',
media=@0xffffffff, changed=@0xffffffff, trayOpen=@0xffffffff)
at dos_mscdex.cpp:658
#2 0x080b36ff in CMscdex::GetDeviceStatus (this=0x9b9d9f8, subUnit=0 '\0')
at dos_mscdex.cpp:667
#3 0x080b3faa in MSCDEX_Interrupt_Handler () at dos_mscdex.cpp:775
#4 0x0804ca65 in Normal_Loop () at dosbox.cpp:127
#5 0x0804caf6 in DOSBOX_RunMachine () at dosbox.cpp:170
#6 0x0804d836 in CALLBACK_RunRealInt (intnum=33 '!') at callback.cpp:102
#7 0x080fd393 in DOS_Shell::Execute (this=0x9ba51a8,
name=0x4b00 <Address 0x4b00 out of bounds>,
args=0x53 <Address 0x53 out of bounds>) at shell_misc.cpp:434
#8 0x080f9e45 in DOS_Shell::DoCommand (this=0x9ba51a8,
line=0xbfffe478 " quickfades firsttime") at shell_cmds.cpp:98
#9 0x080f7a14 in DOS_Shell::ParseLine (this=0x9ba51a8,
line=0xbfffe470 "c2cdtool quickfades firsttime") at shell.cpp:146
#10 0x080f8a6a in DOS_Shell::Run (this=0x9ba51a8) at shell.cpp:215
#11 0x080f889d in SHELL_Init () at shell.cpp:418
#12 0x080db780 in main (argc=-1, argv=0xffffffff) at sdlmain.cpp:1127

Just to recap, when I mount castles cd without the -usecd 0 parameter, it loads up but gives me a blank black screen, with the -usecd 0 parameter, I get the above segfault.

I didn't know there was a CD version. The floppy version works fine, but I know that doesn't help.

I am having the same problem, running Ubuntu 8.10 and Dosbox 0.72. I also tried running Castles 2 under Dosbox 0.73, with the same result.

I installed it with no problems whatsoever on my friend's Windows 7 machine. Anyone have any suggestions or questions? Thanks.

stevo

maybe use an ISO or CUE/BIN of the cdrom

Yeah, I also tried copying the cd to a folder on my computer and mounting that as the cdrom in dosbox. It installed everything without incident, but still just loads a black screen and freezes Dosbox when I try to play Castles 2.

its not the same cue/bin that copy the cd contents to a folder.

I made an .iso of the Castles 2 cd and mounted that in Dosbox, but exactly the same thing happened: it installed without incident, then froze up Dosbox when I tried to play it.

I installed TIE Fighter in Dosbox and it works fine. So I guess there could be something wrong with my CD. I'll try and download another version of the game and see how that goes, if no one has any other ideas.

Try a cue/bin and if it still doesn't work post your exact mounting lines.

Thanks, wd. I have never done anything with cue/bin stuff ( just googled it to find out what they were). Do you have any resources that could help me get started with this?

cue/bin is just a different format of a cd image, just with more information
than iso files (cue/bin can store layout information, audio tracks etc.)
Check your ripping applications, maybe they provide direct extraction
into a cue/bin.

Thanks again. Once I have that, do I mount them in linux, or can I just mount them in Dosbox?

Mount the .cue file in dosbox (see the IMGMOUNT command), and assure
that the path reference in the .cue file (a plain text file) is correct.

wd, please forgive my noobish ignorance. After about an hour of searching ubuntu/linux forums, I have been unable to find a program that will CREATE cue/bin files from a mixed-mode cd (but at least I understand why they are needed now). Do you have any suggestions for a poor linux user? Thanks again.

Okay, it looks like cdrdao does it fine (I found a little guide here: http://miketeo.net/wp/index.php/2008/05/10/cr … s-on-linux.html).

I mounted the .bin file in dosbox no problem, then installed the game again, but it still locked up as soon as I tried to play.

I mounted the .bin file in dosbox no problem

Please mount the .cue file as i wrote, and if it doesn't work post the exact mounting lines as i wrote.

My apologies, wd; I did not read your earlier replies very closely because I did not understand what you were talking about.

If understand correctly now, here's what I tried in Dosbox:

-------------------------------------
z:/>mount c ~/Games
Drive C is mounted as local directory ~/Games

z:/>imgmount d ~/Games/c2cd.cue -t cdrom
Could not load image file : ~/Games/c2cd.cue
MSCDEX: Failure: Path not valid.

z:/>imgmount d ~/Games/c2cd.bin -t cdrom
MSCDEX installed.
Drive D is mounted as ~/Games/c2cd.bin
----------------------------------------

I checked the .cue file to make sure it pointed at the .bin file correctly and it does. Any other info I can give you? Thanks again for your help.

The CUE-file is a text file. Please post it here.

Is the .cue file in the same folder as the .bin file? Is the name actually c2cd.cue? What are the actual contents of the .cue file?

Yes, the .cue file is in the same folder as the .bin file, and the path listed in the .cue file (below) is the actual location of both files on my home drive.

-----------------
CD_ROM_XA

// Track 1
TRACK MODE2_RAW
NO COPY
DATAFILE "~/Games/c2cd.bin" 69:22:34 // length in bytes: 734256768
-----------------

Thanks, everyone, for your time. I appreciate your help.