zogthegreat Posted March 22, 2021 Share Posted March 22, 2021 Hi everyone! So I'm trying to upgrade my Latitude E7270 to Big Sur and I keep running into problems. I'm using Jake Lo's boot pack for the Latitude E7270 found here: However, I keep getting kernel panics when I boot. I've kept the boot pack stock, with the exception that I changed the WiFi cards properties from: <string>pci14e4,43a0</string> to <string>pci14e4,43b1</string> to match my card But it's a no go. I also tried to disable VoodooPS2* as they were causing earlier KP's. The laptop is running fine under Catilina with OC for the bootloader. I have tried using my current EFI, but it doesn't seem to work with OC. Does anyone have any suggestions? Thanks! zog Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 22, 2021 Moderators Share Posted March 22, 2021 post your working files, I'll try converting to OC Link to comment Share on other sites More sharing options...
Administrators Hervé Posted March 22, 2021 Administrators Share Posted March 22, 2021 Why change the device property for your wireless card to that of BCM4352 (14e4:43b1) which is not natively supported in Big Sur when your signature shows "BCM94360 w/ adapter" ? Given the mention of an adapter, I can only assume it's an Apple Card which is obviously supported OOB and would not require any property injection other than cosmetic ones to be listed in SysInfo (model & slot-name). But certainly no compatible statement required and not one to declare compatibility with any unsupported card. Link to comment Share on other sites More sharing options...
zogthegreat Posted March 22, 2021 Author Share Posted March 22, 2021 Thanks @Jake Lo! I went into my config.plist and then under "Quirks" I set "ReleaseUsbOwnership" to YES and I was able to boot and start the install. However, after rebooting, the basic install goes back to the install screen, without continuing the install. I think that I need to edit the config.plist, however I need to wait until tomorrow and use a friends Mac to edit, because my other machine is in Europe right now! I'm attaching my EFI for Catalina, hopefully you will be able to do something with it. E7270 Clover EFI.zip Thanks! zog Hi @Hervé, I need to update my signature. I'm running a Lenovo 04X6020 / BCM94352Z for my WiFi card. It has a PIC ID of 14e4:43b1. I have 2 DW1820A's enroute from China to replace this card and the one in my E7250. Although, it might make my life easier to cram the BCM94360 back in. As you say, it works out of the box. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 22, 2021 Moderators Share Posted March 22, 2021 After the reboot, make sure to select the USB installer to boot. At the OC Picker select the new boot option "Install MacOS..." to continue the installation. Will 3-4 reboots before it's completed Link to comment Share on other sites More sharing options...
zogthegreat Posted March 22, 2021 Author Share Posted March 22, 2021 @Jake Lo I managed to open my EFI partition using Linux, here's the command for anyone else that needs to do the same: sudo fdisk -l /// find your EFI partition sudo mount /dev/sda1 /mnt That's it. Go to you "/mnt" folder and grab your EFI. Copy the config.plist and then edit it with the online editor. After that, copy it back to the EFI folder with the following command: sudo mv /Desktop/config.plist /mnt/EFI/OC/ After that, I found an online OpenCore configurator here: https://galada.gitee.io/opencoreconfiguratoronline/ That I can edit my config.plist with. However, I can't find the field to create a path to complete the install. After I reboot, the USB dumps me back into the main install screen, it doesn't continue the install. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 22, 2021 Moderators Share Posted March 22, 2021 It should have a new boot option to select Install from the SSD, not install from the USB Installer Link to comment Share on other sites More sharing options...
zogthegreat Posted March 27, 2021 Author Share Posted March 27, 2021 OK, so I had some time today to go back a fiddle with my E7270. The install not continuing didn't make sense, but then I remembered that some Western Digital NVMe drives have trouble with OS X. I swapped out my WD Black PCIe 512GB, (WD512G1X0C-00ENX0), with my 256GB Hynix SC300. The Hynix drive is SATA III and the installation went as normal. Is there anyway to get the WD drive to work with OSX? It worked fine with Catalina, so I am a bit confused as to why it won't work under Big Sur. Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted March 30, 2021 Administrators Share Posted March 30, 2021 try clone the hynix to the western digital see if it works that way. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 30, 2021 Moderators Share Posted March 30, 2021 Looks like my post got deleted due to the storage failure. Anyway, I looked at your Clover file and noticed you have an NVMe patch. I have not seen a new patch around for Big Sur but you could certainly try and see if it still work on Big Sur Under kernel / patch: Comment: IONVMeFamily patch for SSD Liteon etc. (c)jief_machak Find: 0F834E01 0000 Replace: 90909090 9090 Identifier: com.apple.iokit.IONVMeFamily Link to comment Share on other sites More sharing options...
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