This seems to be the only thing preventing it from being installed on it. It is the same hardware.Ĭatalina should work. If compared EFI3 with EFI4, the nature of the issue might become visible. The first 3 EFI archives on this thread were from Catalina, this one is from Mojave. I have uploaded the content of the EFI partition on this link: I have performed an F2 boot test on the installed Mojave. The installed Mojave boots up fine even using the Clover from the Catalina installer pen drive. If it were a lack of AHCI-SATA issue, I suppose Mojave should have the same problem, right? But it does not, Mojave is fine. This is a striking difference from Mojave. The Catalina installer boots on this hardware too, both unpatched and patched with RMC patch (Main developer Julian Fairfax from MacRumors). On both cases the installer gets to the install GUI, but no hard-drives are visible, neither the one on SATA or the one on ATA, on neither Disk Utility with full view enabled (the physical hard-drives are absent, not the just he partitions on them) or in the Catalina install, although the pen drive boots up to the install GUI. In order to complete the install, the dosdude1 patch is required, but to boot the installer a Metal compatible graphics card it is not required, I have tested this since last year. Both the installer and the installed OS run. The patched Mojave can be installed and runs at a decent score on this hardware. I do not think it is the cause of the issue. I know Nvidia GeForce 6200 is not supported, but it works, including Mojave. There is no SATA AHCI devices in your dump.

I attach the content of the EFI partition, if this helps.

There are two internal hard-drives: A main one, SATA, with Mojave installed, formatted in APFS, and a secondary (slave) one, on ATA, formate into HFS+, for documents. This shows that, most-likely, this issue is in Clover itself, not in the custo version used for experiments of the in the RMC patch. Now, after using the RMC patch (a fork of the dosdude1 patch, more or less), Clover+FakeSMC were able to boot the installer to the end, but the same issue: the internal hard-drives are invisible. It was based on an slightly older Clover and I managed to boot the un-patched Catalina, but the internal hard-drives were completely invisible to the Catalina installer, even in Disk Utility. In one of the experiments, before this new patch, I have used, just to testing sake, a custo edition of Clover I have used in the past and ditched it a few months ago. I have created a pen drive using the patch of Julian Marius Fairfax from RMC ( ), installed Clover and FakeSMC and the Catalina installer booted to the end.

Clover boot loader legacy installer