multi-boot bootstrap?

[Nathan Whitehorn]

On 03/28/11 15:59, dieterbsd at engineer.com wrote:
>
>
>> From what I know, one or the other can only be as
>> the first entry and it then has to be set from the forth prompt.
>> So, you will need two disks to boot , saya: OpenBSD, NetBSD, FreeBSD, 
> Linux,
>> and MacOSX or a combination of these.
>>
>> On PPC boxes with OpenFirmware 3.x, you actually need to set the 
> active
>> partition if you want to boot Linux and/or freebsd from the forth 
> prompt if
>> both are on the same disk.
>
> Can these PPC boxes boot from GPT disks?  "active partition" sounds 
> MBRish.
> Perhaps they can use the "protective MBR" trick?

No, they can only boot from APM (Apple Partition Map) disks, which don't 
have a concept of active partition. The current boot1 on PPC is 
hard-coded to boot from the first UFS partition on the disk, which could 
be changed, certainly, but is almost totally unrelated to this discussion.
-Nathan