Comments on: Power notes, booting notes https://www.dragonflydigest.com/2019/01/14/power-notes-booting-notes/ A running description of activity related to DragonFly BSD. Mon, 14 Jan 2019 15:28:31 +0000 hourly 1 https://wordpress.org/?v=7.0 By: Aaron LI https://www.dragonflydigest.com/2019/01/14/power-notes-booting-notes/comment-page-1/#comment-487881 Mon, 14 Jan 2019 15:28:31 +0000 https://www.dragonflydigest.com/?p=22409#comment-487881 Let me share more details about booting DragonFly BSD with GRUB2 on my ThinkPad X200.

The X200 doesn’t have UEFI, so only legacy BIOS. However, I’m using GPT for the disk (with Linux on it first). DragonFly BSD’s boot loader doesn’t support such a setup, i.e., directly chainloading from GRUB2 won’t work.

The whole setup consists of two parts:

(1) GRUB2
—————————————
insmod part_dfly
set root='(hd0,gpt8,dfly1)’
kfreebsd /kernel/kernel
kfreebsd_loadenv /loader.conf
—————————————

(2) DragonFly BSD’s /boot/loader.conf
—————————————
vfs.root.mountfrom=”hammer2:da0s7d@ROOT”
# Extra settings for GRUB2
module_path=”/boot/kernel;/boot/modules.local”
—————————————

The extra ‘module_path’ setting is useful (though not necessary to boot), otherwise, ‘kldload ‘ will fail to load the module because it doesn’t know the module search paths.

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