Re: [issue1332] DFBSD 2.2 - Booting usbcdrom/usbsticks on thinkpad hangs on "BTX Halted"

[Jordan Gordeev <jgordeev@xxxxxx>]

Francois Tigeot wrote:
> On Thu, May 21, 2009 at 09:18:25PM +0300, Jordan Gordeev wrote:
>   
> > I've adapted some fixes from FreeBSD for the booting issues that result 
> > in "BTX halted".
> > My changes are available at 
> > git://leaf.dragonflybsd.org/~smtms/dragonfly.git, branch "btxhalted".
> > *Everybody* should test that these changes don't break booting for them.
> > Additionally, people that have seen "BTX Halted" on some of their 
> > computers should test to confirm that the issue is fixed.
> >     
>
> I think one of my machines may be affected by this issue.
>
> I would like to try your changes, but I'm lost in git land.
> I tried to generate a patch from your branch; it weights 100K and I believe
> many of the differences are irrelevant (many files in rc.d/) :-(
>
> Is there any way to just get the changes you made relative to HEAD and not
> just every changes in HEAD since then ?
>
>   
Hi, Francois!
The easiest way to get my changes is to create your own branch ("git 
branch mylocalbranch master; git checkout mylocalbranch"), then merge 
the "btxhalted" branch into it ("git merge smtms-on-leaf/btxhalted").
To view what changes are in branch "btxhalted", but not in master, first 
checkout master ("git checkout master"), then run "git log 
. .smtms-on-leaf/btxhalted"). Notice the two dots.

Testing the changes consists of two parts: testing new boot blocks 
('boot1' and 'boot2') and testing new 'loader'.
To test new boot blocks you need to install them to disk using 
"disklabel -B -b /path/to/boot1 -s /path/to/boot2 <somedisk>".
To test new 'loader', you just copy it to /boot/loader on the respective 
medium.
To test new PXE loader, you replace 'pxeboot' (or 'pxeboot_tftp') in 
your TFTP-exported directory with new versions.
I'm not sure what the instructions would be for building a new release 
ISO containing the changed 'cdboot'.

I admit that it wasn't a good idea to post to users@ without including 
instructions on how to obtain and how to test changes.

Regards,
   Jordan Gordeev