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<p>
No method is yet known for flashing in GNU/Linux while the Apple firmware is running. You will need to disassemble the machine and flash externally.
- Reading from flash seems to work. Bus Pirate recommended for external flashing (there are others) and needed tools: clip (eg Pomona 5250), mini usb cable,
- bus pirate cable (for connecting Pomona to the bus pirate).
+ Reading from flash seems to work. For external flashing, refer to <a href="../install/bbb_setup.html">../install/bbb_setup.html</a>.
</p>
<p><a href="#pagetop">Back to top of page.</a></p>
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</p>
<p>
- Bus Pirate recommended for external flashing (there are others) and needed tools: clip (eg Pomona 5250), mini usb cable,
- bus pirate cable (for connecting Pomona to the bus pirate).
+ For external flashing, refer to <a href="../install/bbb_setup.html">../install/bbb_setup.html</a>.
</p>
<p>
@@ -502,24 +500,9 @@ EndSection
</p>
<p>
- The macbook21 gets extremely hot under GNU/Linux and libreboot; Macfanctld (mac fan control daemon) I'm told is a programme (GPLv3 license) that can help with this.
- </p>
-
- <p>
- Debugging the heating issues (initial work):<br/>
- Distro: Trisquel 7. kernel(linux-libre): 3.13.0-32<br/>
- <b>CPU temperatures:</b><br/>
- 52C(idle)/81C(stress) on factory.bin<br/>
- 70C(idle)/80C(stress) on coreboot(with microcode updates). libreboot results (without microcode updates) were the same.<br/>
- (libreboot and coreboot rom's were both built from the same code, just with or without microcode included in the rom)<br/>
- battery life was higher on original firmware, lower on coreboot/libreboot.<br/>
- microcode patches included [y/n] makes no difference.<br/>
- libreboot: 1hr18min left on idle (99% battery), 42mins left on stress (82% battery)<br/>
- factory.bin: 2 hours left on idle (99% battery), 48mins left on stress (82% battery)
- </p>
- <p>
- Todo: see what the non-free firmware has in it's ACPI tables using acpidump and iasl -d. Try to implement cstate support in coreboot
- (this will allow for lower temperatures).
+ The machine does get a bit hotter compared to when running the original firmware. It is certainly hotter
+ than an X60/T60. The heat issues have been partially fixed by the following patch (now merged in libreboot):
+ <a href="http://review.coreboot.org/#/c/7923/">http://review.coreboot.org/#/c/7923/</a>.
</p>
<p>