Subject: Re: Adding bootverbose
To: None <,>
From: Ben Harris <>
List: tech-kern
Date: 07/06/2000 13:28:50
In article <> you write:
>Couple of issues: amigappc,arm26,mac68k don't seem to pass/recognize
>any boot flags. Is the info passed other way ?

arm26 passes a binary structure from the bootloader to the kernel.  Look in

>evbsh3,mmeye,sh3,news68k,newsmips,sgimips,vax don't seem to
>get the boothowto eiher, seems like the only way to set the boot flags
>is reboot(2), whose flags are stored in non-volatile place. Or do
>I just overlook something ?

Well, in sys/arch/vax/vax/subr.s, the VAX seems to get its boothowto from
R11 on old bootloaders:

        movl    r11,_boothowto                  # Howto boot (single etc...)

On later bootloaders, it's passed in the RPB (in rpb_bootr5) (see locore.c):

        boothowto = prpb->rpb_bootr5;

Ben Harris
Portmaster, NetBSD/arm26