This is a discussion on Re: BTX on USB pen drive - FreeBSD ; On Friday 07 March 2008 06:40:04 pm Jeremy Chadwick wrote: > On Fri, Mar 07, 2008 at 11:51:49PM +0100, Dimitry Andric wrote: > > On 2008-03-07 15:13, John Baldwin wrote: > > > Try this instead: > > > > ...
On Friday 07 March 2008 06:40:04 pm Jeremy Chadwick wrote:
> On Fri, Mar 07, 2008 at 11:51:49PM +0100, Dimitry Andric wrote:
> > On 2008-03-07 15:13, John Baldwin wrote:
> > > Try this instead:
> > >
> > > http://people.freebsd.org/~jhb/patches/btx_real.patch
> > Hi John,
> > I've encounted way too many machines already with BIOSes that clash with
> > the regular btx loader...
> Have we considered sgetting rid of BTX and using a different bootloader
> altogether on FreeBSD? There's got to be some open-source, non-GPL
> bootloaders which work better than our current.
> The reason I mention this is because the number of problem reports with
> BTX continue to rise, and debugging them is very painful since due to
> the way the crash is reported, no one can easily report a full register
> dump. I suppose if the latter was addressed, the former could be solved
BTX is actually quite small. BTX is just a small kernel that lets us
write /boot/loader (and all of libstand) in C w/o worrying about real mode
segmentation, etc. In one sense this patch _does_ get rid of BTX in that it
now runs the BIOS in real mode rather than virtual 86 mode.
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