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Bios don't detect HDD


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#1
Aska

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I don't know if this is the right forum, in that case sorry :P

First off, i set my HDD as following:

1° partition: 100mb windows partition
2° 50gb windows
3° 50gb MacOSX
4° 50gb MacOSX clone
5° 300gb NTFS for stuff

My bootable partition was the 3°, and by chamaleon I was able to boot both windows or macosx.

I uninstalled windows 8 and reinstalled windows 7, obviously it changed /boot flag to 1°.
I used to use gparted to switch the flag back to 3°, but this time I tried with the diskpart and set 3° as active (aka /boot).

Now the HDD isn't bootable anymore, BIOS doesn't detect it. I plugged the HDD in another Windows PC by USB. It doesn't work: i can't see no disk nowhere! Nor in Disk Manager.

I tried to use gparted and plug the HDD AFTER gparted was running. I was able to see the disk and each partition as they used to be (that makes me think that there's any "physical" issue).

I would like not to format the disk (however even though I would do it, i can't because it's not detected anywhere).

What can I do? Can someone help me please?

Thank you in advance.

#2
3.14r2

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Is it a Seagate drive by any chance? Namely 7200.10/11

#3
Aska

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Nop, it's a Maxtor.

After many hours, I finally end up to switch to IDE mode from AHCI in the BIOS setup. Now I am able to boot Windows 7 again... half work is done.

Since Mac OSX run only in AHCI mode, I enabled AHCI driver in the windows registry (I read some tutorial here and there on internet).

Then I restarted the PC, changed back to AHCI in the BIOS, rebooted again and... nothing, auto-detection of SATA 1 is still in "guru meditation".

That sounds wierd to me because I already had that setup before Windows 8 install (dual-boot Win7+Macosx x2, in AHCI mode).
And plus, since the first bootloader is chamaleon and it starts from an HFS+ partition, why BIOS doesn't detect the disk and allows to boot the Mac straightly, bypassing Windows?

IDE mode: disk detected.
AHCI mode: disk undetected.

Maybe I'm doing something wrong or I miss something...

#4
3.14r2

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Well, Maxtor was purchased by Seagate, so it's mostly the same. Google Maxtor BSY or Seagate BSY.





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