42 lines
1.6 KiB
Markdown
42 lines
1.6 KiB
Markdown
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% Libreboot 20140309 release
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% Leah Rowe
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% 9 March 2014
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Revision notes (9th March 2014):
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--------------------------------
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- recreated coreboot config from scratch
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- GRUB loads even faster now (less than 2 seconds).
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- Total boot time reduced by further \~5 seconds.
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- Added crypto and cryptodisk modules to GRUB
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- cbfstool now included in the binary archives
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Development notes
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-----------------
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- Binary archive now have 2 images:
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- With serial output enabled and memtest86+ included (debug level
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8 in coreboot)
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- With serial output disabled and memtest86+ excluded (faster boot
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speeds) (debugging disabled)
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- Reduced impact on battery life:
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- 'processor.max\_cstate=2' instead of 'idle=halt' for booting
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default kernel
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- coreboot.rom (faster boot speeds, debugging disabled):
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- Disabled coreboot serial output (Console-> in "make
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menuconfig")
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- Set coreboot debug level to 0 instead of 8 (Console-> in
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"make menuconfig")
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- Changed GRUB timeout to 1 second instead of 2 (in grub.cfg
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- Removed background image in GRUB.
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- Removed memtest86+ payload (since it relies on serial output)
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- coreboot\_serial.rom (slower boot speeds, debugging enabled):
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- Boot time still reduced, but only by \~2 seconds
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- has the memtest86+ payload included in the ROM
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- has serial port enabled. How this is achieved (from
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X60\_source): Turn on debugging level to 8, and enable serial
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output
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- (in Console-> in coreboot "make menuconfig")
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- (and build with grub\_serial.cfg and grub\_memdisk\_serial.cfg)
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