dave.stl Posted July 24, 2020 Share Posted July 24, 2020 Hey everyone, i wanted to open this topic because I haven't seen any similar here. I tried to install Big Sur Beta 2 on my Latitude E7470 and ran into some Problem. Has anyone successfully installed Big Sur on the E470 or an similar Latitude? I dont know if its better to make an fresh install or an upgrade from my Catalina installation. Bu didnt want to mess up my Catalina installation so im more into an clean install. So for that I read, that Copencore (0.6.0) is the better option. But i ran into some problems again. Some where caused by some outdated kexsts. After upgrading or disable them the boot stuck a bit later in kind of an loop. After this weekend i will provide additional information, but if anyone mad any progress pleas let me know or give me an hint Thanks in advance, David Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 24, 2020 Moderators Share Posted July 24, 2020 @dave.stl Give this a try. Successfully tested to boot from USB installer Big Sur Beta 2. Config include settings for DW1820a, if you don't have that device, make sure to comment it out. It'll be wise not to upgrade or install over your Catalina as Hervé advised. Either get an external drive or replace with a spare M.2 drive if you want to test Big Sur E7470_OC.zip Update to latest OC release and kexts E7470_OC_0.6.2.zip Link to comment Share on other sites More sharing options...
dave.stl Posted July 29, 2020 Author Share Posted July 29, 2020 Thanks for providing this, but i got no luck with booting up the installer. I think i got an kernel/cpu panic right after lilu is loaded. I took your EFI and just changed the Device Properties to my serial and so on. Or do i need an special SMBIOS configuration. (Even my Catalina is not starting up with your EFI) Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 29, 2020 Moderators Share Posted July 29, 2020 Please provide a screenshot Link to comment Share on other sites More sharing options...
dave.stl Posted July 29, 2020 Author Share Posted July 29, 2020 Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 29, 2020 Moderators Share Posted July 29, 2020 I just uploaded a new bootpack. Had to make a minor adjustment since it won't detect me NVMe drive in OC Picker. Tested to boot to Catalina & BS successfully. Link to comment Share on other sites More sharing options...
dave.stl Posted July 29, 2020 Author Share Posted July 29, 2020 Did you try the Big Sur installer too? Or just the completed install ? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 29, 2020 Moderators Share Posted July 29, 2020 My files works perfectly on the installer. I don't do VM or completed install. Link to comment Share on other sites More sharing options...
dave.stl Posted July 30, 2020 Author Share Posted July 30, 2020 Still not working on the Installer. But in the completed install it works. Trackpad and Sleep is not working for me, but every thing else is fine. Thank you for providing your bootpack. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 30, 2020 Moderators Share Posted July 30, 2020 Trackpad not working or no gestures? You should at least get basic movement and scrolling as well as for the trackpoint. I haven't try Beta3 so if that's what you're running, than I can't comment until I try it. Link to comment Share on other sites More sharing options...
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