Re: bootable mac68k iso (Was: Tools mkhybrid(8) for mac68k/macppc ISO9660/HFS install ISO images

[David Brownlee <abs%absd.org@localhost>]

On Mon, 3 Jun 2024 at 21:36, Stan Johnson <userm57%yahoo.com@localhost> wrote:
>
> On 6/3/24 9:27 AM, David Brownlee wrote:
> > https://nycdn.netbsd.org/pub/NetBSD-daily/HEAD/latest/images/NetBSD-10.99.10-mac68k.iso
> >
> > Now calling for people with a mac68k and CD-writer to give it a test :)
>
> I tested NetBSD-10.99.10-mac68k.iso using RAM-based video (RBV; i.e.
> built-in video) on a Mac IIci with a BlueSCSI card and 65 MiB memory
> (there is 1 MiB in Bank A and 64 MiB in Bank B); 65 MiB seems to be the
> ideal memory configuration for both NetBSD and Linux when using IIci RBV.
>
> This is the MD5 checksum of the file I downloaded:
> MD5 (NetBSD-10.99.10-mac68k.iso) = 3ad958871f46b4f7b8fcf3f4596b17ec
>
> The SBC installation kernel booted and installed a basic system with no
> errors and only a few (mostly minor) issues:

Excellent. That opens the way to potentially get a pullup into -10.

tsutsui@ - I don't want to interfere with anything you may be doing,
but would it be helpful if I tried to determine the correct set of
pullups to get the current mac68k bootable iso changes into -10. (I'm
working on the assumption that we can always send further pullups
later for macppc and anything else as needed), or would you prefer
everything as one huge pullup?

> 1) I noticed that the installation only lists the first four available
> SCSI disks. This would not be a problem in most situations, though with
> BlueSCSI I have five targets defined specifically for this sort of testing.
>
> Recommendation: Include all of the SCSI disks in the list of available
> drives.

While we tend to only include necessary devices in the ramdisk, it
should be easy enough to add an extra one - does
http://sync.absd.org/mac68k/NetBSD-10.99.10-mac68k.iso show the 5th
(sd4*) target? :)

> 2) I didn't use a real SCSI CD-ROM drive, though the iso would have fit.
> The BlueSCSI simulated CD-ROM is faster at around 75-80 KiB/s, compared
> to about 20-40 KiB/s for a real Apple SCSI CD-ROM drive.
>
> Recommendation: Include a DVD-sized iso that has all of the software,
> including source code. There are still some working SCSI DVD-ROM drives,
> though most users will be more likely to be using SCSI2SD or BlueSCSI
> cards at this point.

As the source is the same for all built distributions ports (I believe
72 at this point), and people tend to download via different methods
(directly via anoncvs, or a git mirror or tarfile), I believe the
decision was made to not include source on individual CD images. That
could be revisited, but is probably at a project wide level rather
than just mac68k...

> 3) There is still an issue on the IIci with RAM-based video (RBV, i.e.
> built-in video). The issue is described in NetBSD Problem Report #58164:
> https://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=58164
>

Going to reply on a separate thread to try to avoid crossing the streams.

David