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Installing ubuntu on a mac no usb2/12/2023 This is tedious and annoying so I bought a new 2018 MacBook Pro instead. In certain circumstance, some software like Adobe Photoshop will accidentally activate the malfunctioned dGPU. After each system upgrade, I have to reapply the patch. In general, I am happy with the mod but it has some caveats. For example, an automated utility from realmacmods or a custom FPGA firmware from ComputeCode (Disclaimer: I am not affiliated or connected with any of the company listed here). Many people had the same issue and there are various posts and even paid services to fix the issue. (Updated on June 17, 2020) I have successfully upgraded my MacBook Pro from 18.04 LTS to 20.04 LTSĪbout more than a year ago, I post a software hack to walkaround the broken AMD Radeon discrete GPU.Start the normal Ubuntu reboot sequence without the Live USB.Append nomodeset radeon.modeset=0 to the GRUB_CMDLINE_LINUX_DEFAULT line in /etc/default/grub.Login to Ubuntu and update the default grub config.You should see the normal Ubuntu boot process.grub> initrd /boot/initrd-x.y.z-xx-generic.efi.signed root=UUID=PARTITION_UUID nomodeset radeon.modeset=0 grub> linux /boot/vmlinuz-x.y.z-xx-generic.grub> ls -l (hd2,gpt2) to find the partition UUID.Find the partition where Ubuntu is installed (assuming (hd2,gpt2), more details from Marco Miglierina.Install Ubuntu normally and reboot and select EFI boot again (don’t boot into the installed Ubuntu yet and you can’t).Verify this version of Ubuntu works with your broken machine. Hit e to edit Try Ubuntu without installing entry and add nomodeset to the kernel command line.Start your machine with USB plugged in and select EFI boot.Prepare a Ubuntu Desktop 18.04 LTS Live USB.
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