Reluctantly. Then I have to download (another) one. Can't there be any other cause for disappearing of my hard disk?

delete ioatafamily , appleviaata and replace with this file..

So is it profitable to do this, roisoft? I don't want to waste my DVDs :-)
I trust you, but how sure are you about this and "why"? I'm interested at this thing :-)

You have a Via chipset and for this reason, i am trying some kext from tiger release....you can try it or not, it´s your choice.

Does a Tiger installation DVD detect your HD? If yes, format it from there and then try to install Leo.

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2 Opteron systems: OSx86 10.5.8, Andy's 9.8.0 kernel, Asus A8N-SLI Premium, Opteron 185 o'clocked @ 2 x 2,95 GHz (2nd system 2.6 GHz), ATI Radeon HD2600XT 256MB Dual-Monitor 2x HP L2035, 4 GB RAM, Griffin FireWave as main audio device, Marvell + nForce LAN, Asus U3S6 USB3/SATA6 card, 5,5 TB harddisk, Firewire 800 card, Apple Remote + eHome IR receiver, 2x Wacom serial graphics tablet, Canon Pixma iP4700, Logitech Internet Navigator wireless keyboard/mouse combination.

My Audio stuff: M-Audio Transit USB (default audio), M-Audio ProFire 610, M-Audio ProFire Lightbridge (34 channels) using Creamware A16 ADAT converter • MIDI: M-Audio Midiman 4x MIDI interface • Behringer Audio Mixers: Xenyx 1002, Xenyx 1002FX, Xenyx 1202FX, Eurorack UB1002FX, Eurorack MX1804FX, Eurorack MX262A • FX devices: Lexicon MPX100 DSP, Behringer DSP-1000 Virtualizer, Behringer MiniFEX 800 DSP, Behringer Multicom Pro MDX4400 compressor • RETRO: MSSIAH midi/sequencer/synthesizer cardridge for the C64 (Dual-SID), Steinberg M.S.I. MIDI Interface for C64

I don't have a Tiger-DVD, but now I'll do roisoft's suggestion. Thanks, roisoft.

And it burns burns buuuurns ... with a kext of Tiger ... xD
(sorry for that spam ... I couldn't control myself :-} )

DL an tiger image from anywhere, tubgirl is not bad for AMD...

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2 Opteron systems: OSx86 10.5.8, Andy's 9.8.0 kernel, Asus A8N-SLI Premium, Opteron 185 o'clocked @ 2 x 2,95 GHz (2nd system 2.6 GHz), ATI Radeon HD2600XT 256MB Dual-Monitor 2x HP L2035, 4 GB RAM, Griffin FireWave as main audio device, Marvell + nForce LAN, Asus U3S6 USB3/SATA6 card, 5,5 TB harddisk, Firewire 800 card, Apple Remote + eHome IR receiver, 2x Wacom serial graphics tablet, Canon Pixma iP4700, Logitech Internet Navigator wireless keyboard/mouse combination.

My Audio stuff: M-Audio Transit USB (default audio), M-Audio ProFire 610, M-Audio ProFire Lightbridge (34 channels) using Creamware A16 ADAT converter • MIDI: M-Audio Midiman 4x MIDI interface • Behringer Audio Mixers: Xenyx 1002, Xenyx 1002FX, Xenyx 1202FX, Eurorack UB1002FX, Eurorack MX1804FX, Eurorack MX262A • FX devices: Lexicon MPX100 DSP, Behringer DSP-1000 Virtualizer, Behringer MiniFEX 800 DSP, Behringer Multicom Pro MDX4400 compressor • RETRO: MSSIAH midi/sequencer/synthesizer cardridge for the C64 (Dual-SID), Steinberg M.S.I. MIDI Interface for C64

@naquaada: he already injected the tiger kexts into his leopard dvd, and is going to test it again now.

Most of the time Tiger kexts are working, for example for my USB Controller.
Roisoft fixed USB issues with a Tiger IOUSBFamily Family kext as well.

I have to disapoint you (and me). I tried following:
- boot the dvd with -f and -v flags ... kexts were loading, loading, loading ... and ZACK my PC rebooted
- boot the dvd without any flag ... installer were loaded ... but my hd still wasn't there. :-(

@naquaada: I don't want to download Tiger, because now I know it's not the driver the problem.
@Puttabong: Any further suggestions? :-}

Thanks to you all,
Greetings