{"id":84416,"date":"2025-04-02T14:08:34","date_gmt":"2025-04-02T18:08:34","guid":{"rendered":"http:\/\/pappp.net\/?guid=f1f7a84ff885a885e60367c01632353f"},"modified":"2025-04-02T14:08:34","modified_gmt":"2025-04-02T18:08:34","slug":"build-your-own-apple-dtk-and-save-a-fortune","status":"publish","type":"post","link":"https:\/\/pappp.net\/?p=84416","title":{"rendered":"Build your own Apple DTK and save a fortune!"},"content":{"rendered":"

Source: Fun with virtualization<\/a><\/p>\n

Article note: I really enjoy experiencing transitional machines; this is exactly the same kind of dumb quest as my Thinkpad 560E that runs OpenStep, but one adaptation down the line.<\/div>
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AI Slop<\/figcaption><\/figure>\n\n\n\n

I am not a cool person.<\/p>\n\n\n\n

I don’t get invited to all the cool people events.<\/p>\n\n\n\n

I never get to bask in the glory of FOMO Apple glory.<\/p>\n\n\n\n

It’ll be 20 years ago the rumors were insane that Apple was going to dump the beloved PowerPC for intel. Darwin (the open-source core to OS X) was publicly available on Intel processors, and the scene was set for one of the most exciting transitions of the time:<\/p>\n\n\n\n

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The WWDC 2005 announcement<\/figcaption><\/figure>\n\n\n\n

At the 2005 WWDC the bomb was dropped.<\/p>\n\n\n\n

The star of the show, of course is that the entire OS X 10.4 Tiger demo was on the intel machine, and for a low price of being invited, belonging to the club & $999 USD you too could be part of the next big FOMO.<\/p>\n\n\n\n

So as the big reveal went, not only was OS X on intel now a thing, it “secretly” was always a thing, and had always been the escape hatch from being locked in. And it’s no surprise, it saved NeXT as the i386 “white box” was the cheapest and fastest NeXT ever, just as further transitions to 64 bit then ARM64 would necessitate.<\/p>\n\n\n\n

So how does one reasonably acquire one of these mythical beasts, 20 years after the fact? Well basically unless you are a cool kid in the know, you don’t.<\/p>\n\n\n\n

however as mentioned in a few places the ATK was quickly out together with standard parts. And if this sounds like the genesis of the IBM 5150 PC, you’d be right! The star of the show is the late SSE3 enabled Pentium 4 processors and the Intel 915 chipset with onboard GMA 900 video.<\/p>\n\n\n\n

Thankfully intel sold these parts to whomever basically wanted them, so they were sold on a bunch of partner boards, OEM, and even Intel fabricated boards. It may be my fault as typical board\/processor\/ram setups can be had for £5 in the UK, the magical 915 chipset has jumped these well north of £100. However, from my searching there are a few OEM systems with the needed chips, and that is the Dell Dimension 3100.<\/p>\n\n\n\n

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She’s ugly, but she works!<\/figcaption><\/figure>\n\n\n\n

Now I know I got lucky as I got mine for £0.99 + £9 shipping! A huge shout out to my patreons for financing stuff like this! The unit was shown in pictures absolutely filthy, missing an optical drive and “untested”. We all know that it’s code for it was tested, it didn’t work, and it wasn’t worth their time to clean up and fix.<\/p>\n\n\n\n

Opening the system up, revealed an ancient mechanical SATA disk, a bunch of dust bunnies, and empty memory sockets where the ram should go. Since I had purchased 7 other boards over the last 2 years (yes! Really! 7!!!), I have ample spare ram, gave it 2x512MB sticks, a new cr2032 CMOS battery, and the hard disk failed to spin or detect, but the machine powered up, did the POST test with no issues! I’ve got to say I was super happy so far! I have a £6 SSD I picked up from CeX, so I placed that into the machine, and now for the OS install.<\/p>\n\n\n\n

My first choice was to create a Linux bootable USB stick and just copy the deadmoo<\/a> image to the SSD. Of course, this came with the caveat that the disk is in the VMDK format which needed to convert using Qemu’s qemu-img utility to a raw disk image, then to compress it with gzip, as the Ubuntu install image seems to only understand gzip. I guess the next pro move is to see about a static standalone iSCSI target, or maybe even rsync? I think there is even Qemu network disk protocols by now, so it may be a way to get around the lack of optical media…? Anyways!<\/p>\n\n\n\n

The deadmoo image can be decompressed and copied to the hard disk easily! It’s about 2gb compressed and 6GB uncompressed. A reboot, and we’re quickly and semi glitched in as Curtis to their desktop!<\/p>\n\n\n\n

there is a pre-installed driver causing issues which drops us back to the fallback SVGA buffer, and I’m happy to report that the artificing you see under emulation is also present on physical hardware. Delete the TPM driver AppleTPMACPI.kext (the root password is ‘bovinity’), and reboot again. This time there won’t be any further glitches in the video, but there is another change to make, the core graphics needs to be replaced with the SSE3 variant<\/a> so that after yet another reboot again Rosetta is fully working, giving us access to PowerPC applications (that don’t require Altivec! That wouldn’t arrive until 10.4.4 just in time for the public release!). This lets the screen savers run, and important applications like iTunes and Internet Explorer 5 for Max OS X.<\/p>\n\n\n\n

As Steve had demo’d it’s pretty amazing at how much just works. You can really get an appreciation at just how truly portable C is, and how LIBC is the real cross platform winner is. The company behind Rosetta transitive, had a bright future ahead of them as you can’t get a better public endorsement that Steve Jobs at a WWDC! SGi had licensed them for Itanium IRIX, and if the other Unix vendors didn’t partner there was also a Linux path. Honestly, I’m surprised SUN didn’t buy them and do the same thing as Apple and jettison the SPARC, as they can sell a LOT more 1u servers, desktops and laptops than giant E10ks, but IBM equally scared and trapped on their AIX \/ UnixWare Itanium merge Monterey that sold like 5 units, instead bought the company and quickly disappeared the technology.<\/p>\n\n\n\n

What a shame for the industry, but x86_64 still is an unstoppable force. Well at least until someone seriously challenges them.<\/p>\n\n\n\n

Getting back to OS X, this is meant for developers, and the deadmoo image has X code installed, although I prefer to use the cli tools. This is a weird time in history as many things may support OS X, but they make really bad platform assumptions, and force endian directions breaking the given stance of all OS X is big endian – even though Intel Darwin has been around the entire time.<\/p>\n\n\n\n

Ive had good luck with stuff that is much later than vintage 2005, as I’m lazy and it’s 2025. The fun stuff id built were:<\/p>\n\n\n\n