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Internal hard-drives invisible

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Jun 17, 2015
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Motherboard
Asus P5P41TED
CPU
E8500
Graphics
GeForce 6200
Mobile Phone
  1. Other
After creating the Catalina beta install pen drive, the installer boots up fine, but the internal hard-drives are invisible in DiskUtility. I have tried several combinations, but they bring the same result: invisible hard-drives. I have on this legacy Asus machine two internal hard drives: A main, SATA one, with Macintosh HD on it, and a second, ATA one, used for storing documents. They are not SSDs. Both are invisible. I know in previous macOS versions, this was fixed by adding some kexts in Clover, but I have not seen anything for Catalina so far. I know that there is a new type of patch, the EC patch, I do not know if this has anything to with it. I have the specs in my profile information. In previous macOS editions this issue was absent on the same hardware.
 
Your hardware is not supported in Catalina.
What part of the hardware is not supported? The graphics? I have already solved this on Mojave, on Catalina I could use a similar workaround. But Mojave had not this issue with the hard-drives.
 
What part of the hardware is not supported?

The processor does not support SSE4.2 extensions either.
Agreed that the unsupported parts are not the cause of your invisible drives.
 
The installer boots up without SSE 4.2 . On Mojave with an NVidia GPU SSE 4.2 was not a must, only SSE 4.1 (like on Sierra and High Sierra). Mojave worked on this configuration.
 
Probably Catalina Works on this too, in some way altough with some features disabled probably. But I can not know what Works and what does not work until I manage to install it and, in order to get that, I need to get past the invisble internal hard-drives issue.
 
Catalina is not Mojave - The minimum requirements have changed.
Actually, Catalina works on Core2Duo, a telemetry patch or workaround is required, but it is possible. I have made it there. As long as things are clean, legal, no piracy or proprietary software modification, it is fine. Core2Duo has all the requirements the kernel of Catalina needs. But I admit this is probably the last macOS this CPU shall be able to run.
 
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