roflcat Posted October 12, 2020 Share Posted October 12, 2020 Hi all. I get the error "An error occurred while preparing the installation. Try running this application again." 5 minutes after starting the install of Catalina 10.15.6. Followed the guide closely and I have done everything correctly as far as I know. The installer log shows: "unable to get fs for /macos install data" and later "disk1s1 is not convertible to APFS: You may not install on this volume..." I'm using a freshly installed Crucial P1 500GB NVMe SSD on my Dell XPS 9550 with specs like wmchris on GitHub. Also using his EFI folder and guide. (https://github.com/wmchris/DellXPS15-9550-OSX/blob/10.15/Tutorial_10.15.md) Hope that anybody can help me. Quote Link to comment Share on other sites More sharing options...
roflcat Posted October 12, 2020 Author Share Posted October 12, 2020 (edited) Mac OS Extended (Journaled) + GUID Scheme. Should I try HFS (Journaled)? I'm now creating the installer USB from scratch with a freshly installed Clover (r5119) EFI partition on it, just to be sure. On another note, the boot from the Clover USB is also failing sometimes (About 1 in 3 attempts is successful). It shows a list of errors, starting with "[EB|`H:CHK] Err (0xE) @ GV boot-signature" It looks like the image attached (not mine, but similar errors). Edited October 12, 2020 by roflcat Quote Link to comment Share on other sites More sharing options...
roflcat Posted October 12, 2020 Author Share Posted October 12, 2020 OK. Thanks. Just tried with new installer USB and no luck. Still errors. You can see them in the file attached: It cannot write to the disk. Could it be an NVMe incompatibility then? Quote Link to comment Share on other sites More sharing options...
Streets Posted October 12, 2020 Share Posted October 12, 2020 Have you tried the latest version of clover? Also try with the Kext Nvmefix Quote Link to comment Share on other sites More sharing options...
roflcat Posted October 12, 2020 Author Share Posted October 12, 2020 (edited) Can you elaborate how to use that Kext? Nevermind, found out. When I use it, I can get into the MacOS installer, but the SSD is not visible in the MacOS installer. I've now tried r5123 and r5124. Edited October 12, 2020 by roflcat Quote Link to comment Share on other sites More sharing options...
Streets Posted October 12, 2020 Share Posted October 12, 2020 Extract and replace Replace your drivers in clover by this. Put the kext in kest / other. I hope it helps you drivers.zip NVMeFix-1.0.5-DevBuild-10052020_175306.zip Quote Link to comment Share on other sites More sharing options...
roflcat Posted October 12, 2020 Author Share Posted October 12, 2020 Is it right that there is a BIOS folder with a APFS fix? Quote Link to comment Share on other sites More sharing options...
Streets Posted October 12, 2020 Share Posted October 12, 2020 Yes I have it Quote Link to comment Share on other sites More sharing options...
roflcat Posted October 13, 2020 Author Share Posted October 13, 2020 Should I replace the complete drivers folder or just replace the files that are in there? Quote Link to comment Share on other sites More sharing options...
Streets Posted October 13, 2020 Share Posted October 13, 2020 You can replace only the files Quote Link to comment Share on other sites More sharing options...
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