PPCnostalgic Posted October 15, 2018 Share Posted October 15, 2018 Good evening. After installing High Sierra on my HP Z400 (see signature) I can't get rid of frequent boot failures. When I try to boot the machine Clover allows volume selection and then it get stuck at Apple logo (progression bar appears but doesn't start) and I need to force reboot several times (at least 3 times) before the system loads fine. Once loaded the machine works fast and stable with no issues. This happens only with High Sierra, never had probs with Sierra. The system HD is APFS but this problem occurs even when booting High Sierra from a backup rotational HFS+ Hard disk. In the attached folder there are 2 pictures of the black startup screen stuck at apple logo, the Clover folder and the IOReg file. I've tried all I could (reinstalled HS 10.13.6, repaired permissions, tried another HD but no go). Can someone more skilled than me just take a look to the attached folder and suggest me something to try please? Thank you. Files.zip Link to comment Share on other sites More sharing options...
PPCnostalgic Posted October 16, 2018 Author Share Posted October 16, 2018 I did it, you can see it in the first attached picture Link to comment Share on other sites More sharing options...
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