Re: how to get started with developing grub2

[Richard Retanubun]

Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> 1) First of all use the latest version. Either BZR trunk or BZR
> experimental branch:
> http://bzr.savannah.gnu.org/r/grub/trunk/grub/ and
> http://bzr.savannah.gnu.org/r/grub/branches/experimental/
> In your case 'clear' command is already in since a long time.
> 2) Then speak before you do. It's quite possible that what you want is
> done with something else or by somebody else.
> 3) Get to develop when feature you proposed is considered good
Hi Vladimir,

Thanks for the response,

Sorry if I am not being clear, I am using the clear command patch as
a starting point/example to figure out how to port commands from grub1 to grub2,
I don't actually need the command :)

The commands I am adding is very specific to our board and does not apply to 
general PCs
so I didn't bother wasting people's time with it.

Anyhow, In case there are people following this thread, this is a solution I 
found (I think from a Gentoo webpage)

Howto rebuild Grub2 and reinstall it in chainload mode with Grub1
-----------------------------------------------------------------
1. Assuming your system boot with grub1 chainloading grub2 to your main os (I 
used debian-linux).
2. Get the grub source package on your target (I placed mine in /usr/local/src)
3. Get any build tools that you need (for debian you can use 
dpkg-checkbuilddeps for this)
4. run 'configure' and 'make' and then 'make install' (make install places the 
compiled stuff in /usr/local)

FROM [/usr/local/sbin]
6. run "grub-install --grub-setup=/bin/true /dev/hda" (the 
[--grub-setup=/bin/true] prevents it from being loaded into MBR and [/dev/hda] is your 
disk)
7. run update-grub to update /boot/grub/grub.cfg from the files in /usr/local/

8. check that /boot/grub contains new files
9. reboot, If you like the results run the update-grub-from-legacy to make it 
permanent

Question
--------
I may be using it wrong, but the "grub-install --grub-setup=/bin/true /dev/hda" 
step only worked once
subsequent changes are not (re)installed and sometimes it reverts back to the 
unmodified grub2.
Is anyone seeing this as well?? Sorry if it sounds crazy, I didn't test it very 
much.

Thanks for the time.

- Richard