Hello,
I'm having trouble setting up GRUB2 chainloader booting of a NetBSD system.
Booting using 'knetbsd /netbsd [-OPTS]' works okay but this doesn't seem to
provide a way to pass options like "userconf=disable i915drmkms*" hence the
interest in chainloading. I seem to recall successfully setting up GRUB
chainloading in the past but it was for a MBR disk; current disk is non-UEFI
GPT partitioned (see below). Platform is amd64 but I'd also like to do this
on i386 if possible.
My disk info:
--
$ gpt show -a wd0
start size index contents
0 1 PMBR
1 1 Pri GPT header
2 32 Pri GPT table
34 2014 Unused
2048 617166848 1 GPT part - NetBSD FFSv1/FFSv2
Type: ffs
TypeID: 49f48d5a-b10e-11dc-b99b-0019d1879648
GUID: 85bfa2fa-49ea-4f22-bce3-22229093be5f
Size: 294 G
Label:
Attributes: biosboot
617168896 7973519 2 GPT part - NetBSD swap
Type: swap
TypeID: 49f48d32-b10e-11dc-b99b-0019d1879648
GUID: 99d1e7ff-6d68-4a98-9dc2-54eba16cfb40
Size: 3893 M
Label:
Attributes: None
625142415 32 Sec GPT table
625142447 1 Sec GPT header
--
Working non-chainloader GRUB2 config:
--
menuentry "Kboot NetBSD - method 0" {
insmod part_gpt
set root=(hd0,gpt1)
knetbsd /netbsd -v
}
--
Attempted GRUB2 configs (all non-working):
--
menuentry "chainload NetBSD - method 1" {
insmod chain
insmod ufs2
insmod part_gpt
set root=(hd0,gpt1)
chainloader --force +1
}
menuentry "chainload NetBSD - method 2" {
insmod chain
insmod ufs2
insmod part_gpt
search --no-floppy --fs-uuid --set root 85bfa2fa-49ea-4f22-bce3-22229093be5f
chainloader --force +1
}
--
Notes:
- leaving off '--force' from chainloader reports "incorrect signature"
- GRUB2 --via 'ls (hd0,gpt1)' -- actually reports a different, shorter UUID;
neither works in method 2 above.
