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bochs for Debian
----------------
In order to use Bochs you need to follow these steps:
- Gunzip the sample bochsrc file (in examples/bochsrc.gz) into ~/.bochsrc.
- Take a look at ~/.bochsrc and adapt it to your needs. In particular you
need to set the "boot:" parameter. The default is to use /dev/cdrom for
boot. If you want to start from floppy or hard disk you'll need to
change that.
- Now invoke bochs from command line or from the menu entry.
Upstream documentation
----------------------
It's in the bochs-doc package. Start with index.html.
sb16ctrl
--------
The sb16ctrl utility can be used to query the emulated SB16 device from
WITHIN the emulator. You can compile it with:
gcc sb16ctrl.c -o sb16ctrl
Add -static if you're not certain that the libc version of the guest
and the system where you compile are the same.
If your guest OS is debian-based there's a "sb16ctrl-bochs" package you
can use.
amd64 / x86-64 support
----------------------
amd64 support in Bochs turned out to be not mature enough to be enabled
as default in the package, but you can easily re-enable it by adding
"--enable-x86-64" to conf_args in debian/rules and rebuilding the bochs
package.
You can find an image of Linux, the kernel, for x86-64 in
<http://bochs.sourceforge.net/diskimages.html>.
The site <http://www.x86-64.org/> contains an x86-64 toolchain, cpu
specification and other resources.
Bochs as init
-------------
By telling your kernel to use /etc/bochs-init/init.sh as init, you can turn
your system into a Bochs-only environment. This may be useful for simulating
that you have an i386-based PC on different hardware platforms. It is mainly
targetted at embedded systems or some such.
If your kernel is Linux (which is the most likely), you need to pass
"init=/etc/bochs-init/init.sh" as a kernel parameter.
Beware that Bochs is not particularly dessigned to be secure from local
attacks. This will let any user with physical access to the system to run
Bochs. Don't use this feature if you're concerned about local security.
Source tree
-----------
This package's orig file contains a pristine Bochs source tree, with some
slight modifications.
I had to remove the propietary VGA BIOS software in bios/VGABIOS-elpin-2.40,
which is not free software as per the DFSG.
EtherBoot support
-----------------
To be able to use EtherBoot within Bochs you can read the following
info:
<http://wiki.etherboot.org/pmwiki.php/Main/EtherbootBochs>
The pseudo NIC is now enabled by default, so there is no need to rebuild
the package.
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