I have a Blueberry clamshell that I recently installed Tiger on using XPostFacto. It's slow, but not unbearable. Although I wonder if the OS performance is affected by the fact that it runs with XPostFacto. I remember reading somewhere about how Tiger runs very well on older Macs, especially if they're not running any hacks. (I might have read it here, but I can't seem to find a corresponding thread)
Anyway, after installation with xpf, does OS X run on an unsupported machine like it would on a supported one? Or does the hack have to run in the background every time? Are there any performance issues? Before anyone asks, my clamshell is 300 MHz non-Firewire, with the ram maxed out at 576 MB. Spotlight and Dashboard are disabled, extra languages and architectures removed with Monolingual, and I usually run ShadowKiller on startup. Could I speed things up even more if I could somehow get Tiger installed normally and not with a hack?
Hey,
Glad to hear you are still using your old clamshell! I have run XPostFacto and Tiger on a number of old machines, and still run it on my old Lombard, which is the same vintage as your iBook.
The limitations of running Tiger on your clamshell will be a) RAM (which you have mitigated by having 576MB already, Tiger requires 256MB *minimum*, and really, 1GB is the sweetspot), and b) Bus speed. Your clamshell has (iirc) a 66MHz bus (like my Lombard). By way of comparison, soon afterwards, the PowerBook Pismo had a 100MHz bus, and then the same generation PowerMac G4 (Sawtooth) had a 133MHz bus. In other words, it could move twice as much data per second as our older models.
That being said, if you are just simply doing simple tasks, like playing iTunes, or using Word, or light surfing/email, you shouldn't notice any problems. As mentioned, XPostFacto is simply a hack to trick the Tiger Installer to install on unsupported hardware, once it has been installed, XPostFacto never runs again.
Where you will notice problems is when you are trying to move lots of data at once, like, ripping CDs to iTunes, or doing a couple of tasks at once (let alone many tasks at once).
As others pointed out, it sounds like you have optimized things as best as you can. This might be as good as it gets. The only other upgrade I could think of would be (are you handy with a screwdriver? not for the feint of heart with an iBook) upgrading the internal drive to an OWC SSD for older IDE interfaces.
Oh, and I don't think there is any point downgrading to Panther or Jaguar. Tiger lets you run iTunes up to about v9 or so, and I always found Tiger seemed to run faster than Panther or Jaguar. My Lombard has been rock-solid and running Tiger for over 5 or 6 years now, without a problem. At this point, I only really use it to run Quicken 2005.
I'd be interested in hearing more about your SSH tunneling sometime, when you get a chance. Sounds like a great way to use the old hardware. Not to go on much longer, but I'm always amazed that 10 year old (well, actually, my Lombard will be 13 in September!) hardware not only runs, but is still fulfilling a useful purpose!