Re: [OpenBIOS] About HFS+ support

[Programmingkid]

On Oct 9, 2012, at 1:11 PM, Mark Cave-Ayland wrote:
> On 09/10/12 03:31, Programmingkid wrote:
> > I'm not familiar with how file systems work, but maybe you can make sense of this output. This is what I see when I enabled the debug macro.
>
> Hmmm. According to that, I'd guess that it's found a filesystem it recognises, but then when it repeats the same seek at found: then it fails the second time around?
>
> I'm afraid you'll need to poke around a bit more/adding debugging DPRINTF statements to figure out exactly what's happening.
>
> BTW you should try and keep on the list wherever possible, since there may be some people with Apple partition knowledge on there who could help out.

Ok. I will CC our info later to the list. We can find out the name of each partition, so can't we just select the partition that is named APPLE_HFS, or APPLE_HFSX?

About HFS+ support

[Mark Cave-Ayland]

On 09/10/12 19:04, Programmingkid wrote:
> Ok. I will CC our info later to the list. We can find out the name of each partition, so can't we just select the partition that is named APPLE_HFS, or APPLE_HFSX?

Given that Apple have lots of partition types which can contain a 
variety of filesystems (see 
http://en.wikipedia.org/wiki/Apple_Partition_Map), I suspect it will be 
a combination of partition flags. Otherwise how would we know which 
partition to boot from if there were more than one HFS partition present?

ATB,

Mark.

About HFS+ support

[Programmingkid]

On Oct 9, 2012, at 2:56 PM, Mark Cave-Ayland wrote:
> On 09/10/12 19:04, Programmingkid wrote:
> > Ok. I will CC our info later to the list. We can find out the name of each partition, so can't we just select the partition that is named APPLE_HFS, or APPLE_HFSX?
>
> Given that Apple have lots of partition types which can contain a variety of filesystems (see http://en.wikipedia.org/wiki/Apple_Partition_Map), I suspect it will be a combination of partition flags. Otherwise how would we know which partition to boot from if there were more than one HFS partition present?
>
> ATB,
>
> Mark.

Good point. I didn't think of that. Do you think the "boot" word might fail because of this problem? Or would specifying a partition allow  it to work?

About HFS+ support

[Mark Cave-Ayland]

On 09/10/12 20:13, Programmingkid wrote:
> Good point. I didn't think of that. Do you think the "boot" word might fail because of this problem? Or would specifying a partition allow  it to work?

If you're passing a partition id into the boot command, i.e. boot cd:9 
then that should be using exactly the same volume resolution mechanism 
as dir cd:9,. So it could be that either the argument passing from the 
boot word is not working, or something else further down the boot 
process is failing.

ATB,

Mark.