8/13/2023 0 Comments Mid 2012 retina gfxcardstatusMount -t efivarfs rw /sys/firmware/efi/efivars/ If you are getting the "operation not permitted" message while attempting to rm, it means that efivarfs has been mounted as read-only and you need to remount it with read-write permissions and try again: If there is such a variable, it's better to remove it with rm. Looks like efivarfs filesystem is mounted by default! So you can already cd /sys/firmware/efi/efivars and ls to explore this directory and see if there is a gpu-power-prefs. If everything is done correctly, you will find yourself at the Linux console! (It takes some time so be patient and wait for the prompt).When the menu shows, press "e" key to edit the GRUB options of the Arch Linux archiso x86_64 UEFI CD menu entry while it is selected at the main screen, add nomodeset to the end of this line and press Enter.Choose "EFI boot" (that is your bootable installation media).Insert this CD/DVD/USB to Macbook Pro, hold Option key (alt) while booting.Sudo dd if=path/to/arch.iso of=/dev/rdiskX bs=1mĪfter completion, macOS may complain that "The disk you inserted was not readable by this computer". The dd command is similar to its Linux counterpart, but notice the 'r' before 'disk' for raw mode which makes the transfer much faster: Now copy the ISO image file to the device. Verify that this is the device you want to erase by checking its name and size and then use its identifier for the commands below instead of /dev/diskX.Ī USB device is normally auto-mounted in macOS, and you have to unmount (not eject) it before block-writing to it with dd: Your USB device will appear as something like /dev/disk2 (external, physical). Open /Applications/Utilities/Terminal in MacOS and list all storage devices: First, you need to identify the USB device.Then you could either simply burn this ISO to CD/DVD (which later could be either inserted to MBP's SuperDrive or External DVD Drive connected to MBP by two USB cables) or create a bootable USB.ġ.2 Creating the bootable USB with the.Download the latest Arch Linux ISO image.
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