Edit: Sleep/Resume has been resolved. Read it here.
First off, you can call me Hermione Granger-ish all you want, before taking the 10.5.8 plunge, I did some research, or to be more honest, some googling around ;) and found this interesting website.
NOTE: This is assuming you've already a working iDeneb install updated upto 10.5.7 - dsdt patched, OSx86_Essentials kexts applied, and Chameleon RC02. (I haven't checked how things would go on PCI_EFI Chameleon 1.0.12).
And like any bookworm out there who easily believes what she reads, (1) I obediently backed up my Extensions via Terminal:
$ sudo -rf /System/Library/Extensions /System/Library/Extensions_1057
Afterward, (2) I installed Disabler and dsmos kexts referenced by the aforementioned website via good ol' Kext Helper b7 but color-coded them first cause I was too lazy to check whether I had these kexts already or not in my current setup, there's no way I'd miss those red kexts now if ever I'd need to check later :D
(3) That done, I didn't reboot yet but ran the Mac OS X Delta 10.5.8 Updater (Delta because I was running 10.5.7 already, 10.5.6 and lower should get the Combo Updater) I'd downloaded just minutes before from the Apple website which, quite surprisingly, took fairly little time to install at around just 5 minutes or less.
I originally intended to reinstall VoodooPS2Controller just in case but decided at the last minute not to and (4) just hit Restart as Installer completed the update. As expected the first reboot didn't complete and the Mini restarted and once again I was face to face with Chameleon RC02 (I've updated my bootloader to the latest Chameleon, by the way, and am enjoying my OS X Boot Theme which I got from here). Then Darwin said "hi" again. The screen flickered, giving me goosebumps as I thought I'd never get into my beloved Leopard desktop. And the spinning wheel finally sprung into action and after what seemed to be a substantially longer boot time than usual, I first saw nothing but a blue screen. . .and my cursor - whew! Another 5 seconds or so, I was back into my desktop!
But everything was humongous; resolution got bricked as expected.
Perhaps this screenshot could better illustrate what happened after the update:
[caption id="" align="aligncenter" width="461" caption="No Bluetooth, WiFi, Resolution 640x480, Color not 32-bit | Has audio, default battery monitor working (right click and open in new tab/window for screenshot's actual size)"][/caption]
It was a comfort to know that screen brightness controls weren't bricked. As it was nearing midnight already I dimmed the screen to the lowest possible before (5.1) I trudged on, reinstalling my usual kexts via OSx86 Tools and not Kext Helper since unlike the latter (Kext Helper b7 it turns out, also backs up your kexts), OSx86 Tools would create a backup folder of the 10.5.8 kexts it replaced which I wanted to look at after. I started with the system kexts which seems to have restored WiFi and Bluetooth. I had no problems with sound as VoodooHDA still worked after the update.
(5.2) Now for the video kexts. You can opt to reinstall all of the kexts in one go; I just decided to separately install them because (a) they're already sorted into two different folders in my drive and OSx86 only allows installing 1 folder of kexts at a time and (b) I'm just weird that way. Restarted and bingo!
[caption id="" align="aligncenter" width="480" caption="Bluetooth, WiFi (Airport), Audio, Battery, 1024 x 600 32-bit (right click and open in new tab/window screenshot in actual size)"][/caption]
There was that nasty "You are running on reserve power" battery warning again and in wanting to screenshot it, I tried to make it pop again by putting MacBook Mini to sleep so I closed the lid and it was late when it dawned upon me that the usual flickering of the white power led and switching off of the fan didn't happen. I reopened the lid and there were the tell-tale signs of a broken Sleep/Resume that were all too familiar to me by then. I knew I had no choice but to force shutdown the Mini and turn it back on so I plugged in my broadband cable to check if ethernet worked. It did. It does.
[caption id="" align="aligncenter" width="482" caption="No need for Yukon2.kext, just be sure to plug in cable before booting up"][/caption]
Now for a summary. At first I thought I was gonna end up listing down the few stuff that still worked but, as it turned out, I'm now writing what doesn't work which means the general outcome of this experiment isn't so bad after all:
1) Sleep/Resume - once you put the Mini to sleep either by closing the lid or pressing fn+f1 combo keys, the screen does switch off but so do the trackpad and, I assume, the keyboard as well, never to be woken up again but by forcing the machine to shutdown and just turn it back on again.
2) Fan - it's gotten hyperactive I guess as it now whirls away with fervent gusto at maximum right from the start and it's noisy.
I would've also listed the battery warning nuissance pop-up alert but that's easily ignored or resolved by turning off battery warning in System Preferences, taking out the default OS X battery meter from the Menubar (enjoy seeing it vanish in a poof of smoke) and using Slim Battery Monitor instead.
What happened to my 10.5.7's Extension folder's back up now? I'm keeping it safe for the meantime as I try to figure out how to resolve the issues mentioned above; the kexts can come quite handy, who knows.
For issue # 1, I'll have to try the old SleepEnabler kext and/or review VoodooUSBEHCI again for some hints. For issue #2, I'm gonna see how posta74's fan solution works out on this one.
All of this is actually reminiscent of struggles with previous updates 10.5.6 and 10.5.7, still fresh in my mind - 10.5.8 is déjà vu. Creepy, I know.
And now I've turned another fork in the road - Harry Potter's lightning scar no longer burns; the King has returned to rule the whole of Middle Earth and even Gollum has found his peace and so has Frodo (though I still doubt he's come out of the closet yet ;) ) and Luke Skywalker has swung his last light saber - sagas have come to their own grand close yet this hackintoshing journey of mine seems to never end. T_T