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Help ! Classic Mac Pro won't boot from my USB stick SL installation

T

Thezine

macrumors newbie
Original poster
Jul 11, 2009
24
0
Hello Everyone,

I really need help.

I have a classic mac pro and I restored Snow Leopard on my 8gb usb stick.
The stick is recognized on osx and works very well and when the installation process reboots, nothing happens, the usb stick is not recognized on startup, even with the alt command.
I tried on other machines and everything is going perfectly except with my mac pro.

Can you plz guys tell me how can I make my mac pro (classic) recognize my usb stick on startup ?

Thank you very much for your help.
 
Which USB port did you try? The front ones?

I know it's crazy, but I have a hazy recollection of having this issue once years ago (no boot from flash drive) and it worked from the rear port.
 
nightfly13 said:
Which USB port did you try? The front ones?

I know it's crazy, but I have a hazy recollection of having this issue once years ago (no boot from flash drive) and it worked from the rear port.
Click to expand...

Thank you for your answer,

I started with the front ones and it didn't work ...

then I tried with a rear one , and it didn't work as well :(

Is it possible that the mac pro just don't boot up from an usb stick ?

I tried the usb stick with 2 Mac notebooks and it's working perfectly and the stick is recognized on startup.

Really need help on this one ...
 
I remember looking up instructions on how to flash a video card for my mac pro 1,1 and reading that the mac pro did not support booting from a usb flash drive... My only option was to boot from a CD.

I could be wrong... so don't quote me.
 
I just reinstalled 10.6 from an 8GB USB stick restored from a DMG of the install DVD. It is in the front top USB port.

I have a MacPro1,1, reformatted the USB as an 8GB Apple File System volume with GUID, restored the image onto it, held Option at boot to select the USB drive, and ran the installer. No issues whatsoever.

Try starting over.

JP
 
AHH yes! that is it! it must be GUID! The problems I ran in to were that it would not boot a USB stick partitioned with MBR.

JPamplin said:
I just reinstalled 10.6 from an 8GB USB stick restored from a DMG of the install DVD. It is in the front top USB port.

I have a MacPro1,1, reformatted the USB as an 8GB Apple File System volume with GUID, restored the image onto it, held Option at boot to select the USB drive, and ran the installer. No issues whatsoever.

Try starting over.

JP
Click to expand...
 
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