Libreboot 20140309 release

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Article published by: Leah Rowe

Date of publication: 9 March 2014

• recreated coreboot config from scratch
• GRUB loads even faster now (less than 2 seconds).
• Total boot time reduced by further ~5 seconds.
• Added crypto and cryptodisk modules to GRUB
• cbfstool now included in the binary archives

• Binary archive now have 2 images:
  • With serial output enabled and memtest86+ included (debug level 8 in coreboot)
  • With serial output disabled and memtest86+ excluded (faster boot speeds) (debugging disabled)
• Reduced impact on battery life:
  • ‘processor.max_cstate=2’ instead of ‘idle=halt’ for booting default kernel
• coreboot.rom (faster boot speeds, debugging disabled):
  • Disabled coreboot serial output (Console-> in “make menuconfig”)
  • Set coreboot debug level to 0 instead of 8 (Console-> in “make menuconfig”)
  • Changed GRUB timeout to 1 second instead of 2 (in grub.cfg
  • Removed background image in GRUB.
  • Removed memtest86+ payload (since it relies on serial output)
• coreboot_serial.rom (slower boot speeds, debugging enabled):
  • Boot time still reduced, but only by ~2 seconds
  • has the memtest86+ payload included in the ROM
  • has serial port enabled. How this is achieved (from X60_source): Turn on debugging level to 8, and enable serial output
• (in Console-> in coreboot “make menuconfig”)
• (and build with grub_serial.cfg and grub_memdisk_serial.cfg)

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