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Barebones Bochs Display Error
Posted: Mon Mar 05, 2012 6:27 pm
by emsworth
I'm new to OSDev, and I have found the information on this site to be very helpful - so thanks! I have, however, run into a problem with running bochs on my system for the barebones tutorial. My setup is:
ubuntu server 10.04 running on VMWare ESXi hypervisor
Bochs 2.5.1 compiled from source
SDL-1.2.15 compiled from source
bochsrc.txt:
Code: Select all
boot: floppy
floppya: 1_44="floppy.img", status=inserted
log: bochs-log.txt
display_library: sdl
vgaromimage: file=/usr/local/share/bochs/VGABIOS-lgpl-latest
romimage: file=/usr/local/share/bochs/BIOS-bochs-latest
I get the following error when I start up bochs:
Bochs is exiting with the following message:
[SDL ] Unable to set requested videomode: 640x480: No video mode large enough for 640x530
Any ideas? My server did not initially have any x or sdl libraries, and I don't know if those are strictly necessary to complete the tutorial; will the term display work just as well? If I try that, I get the following:
Term Display:
Next at t=0
(0) [0x00000000fffffff0] f000:fff0 (unk. ctxt): jmp far f000:e05b ; ea5be000f0
<bochs:1>
And the process hangs. Thanks in advance for your help!
Re: Barebones Bochs Display Error
Posted: Mon Mar 05, 2012 11:31 pm
by Solar
This would probably be best posted on the Bochs forums, but...
I'm running Linux Mint, which is derived from Ubuntu (desktop). What I did to get Bochs running was:
- starting bochs without bochsrc.txt (text menu)
- set factory defaults
- save those to file
- set "display_library: wx"
Leave the rest at factory defaults, and see if that takes you a step further.
Re: Barebones Bochs Display Error
Posted: Tue Mar 06, 2012 2:12 am
by Combuster
ubuntu server
(...)
[SDL ] Unable to set requested videomode: 640x480: No video mode large enough for 640x530
(...)
My server did not initially have any x
Bochs has a GUI. It isn't quite meant to work on a headless/terminal-only machine like a typical server. Either you disable the GUI (display_library: none or something like that, see the manual), or get yourself a remote login with X forwarding.
Even better would be not mixing server and desktop software and running bochs on your own machine (or in whichever part of it that does the desktop).
Re: Barebones Bochs Display Error
Posted: Tue Mar 06, 2012 3:18 am
by Solar
Yikes, I completely missed that part.
I hereby withdraw my comment regarding "wx".
emsworth wrote:will the term display work just as well?
I second Combuster's suggestion to run Bochs locally instead of a remote server. While both remote X and "term" output
might work, they simply add another level of potential failure. Get it to work locally first,
then - if necessary - make it work on a remote machine. (In case of remote X, make
normal remoting work first, e.g. with a text editor or a calculator,
then try it with Bochs.)
Re: Barebones Bochs Display Error
Posted: Tue Mar 06, 2012 11:19 am
by invalid
emsworth wrote:I get the following:
Code: Select all
Term Display:Next at t=0 (0) [0x00000000fffffff0] f000:fff0 (unk. ctxt): jmp far f000:e05b ; ea5be000f0 <bochs:1>
And the process hangs. Thanks in advance for your help!
It's not hung. At this point, Bochs stops execution and displays a prompt. You can enter 'c' to
continue execution (even better: try 'h' for
help)
Re: Barebones Bochs Display Error
Posted: Tue Mar 06, 2012 9:35 pm
by emsworth
Thanks all for clearing up some misconceptions of mine. I didn't realize how gui-centric bochs was, but I got it running on a linux desktop and completed the bare bones tutorial.
Re: Barebones Bochs Display Error
Posted: Wed Mar 07, 2012 12:04 am
by Combuster
I didn't realize how gui-centric bochs was
The desktop PC is so GUI-centric that bochs has to be as well
Re: Barebones Bochs Display Error
Posted: Wed Mar 07, 2012 3:45 am
by Solar
I'm a hard-core console user myself, but I didn't even know that Bochs
had a "term" option.
I might toy with that one some day...