Delete boot entries from EFI

delete_boot_entry.sh

# Find the partition called EFI
diskutil list | grep 'EFI' | awk '{print $(NF)}' | sed 's/s[0-9]/s1/'

sudo mkdir /Volumes/EFI

sudo mount -t msdos /dev/disk0s1 /Volumes/EFI # Replace disk0s1 with actual EFI partition

# Delete boot entries
cd /Volumes/EFI/EFI

# choose any applicable, renaming is also an option (to be safe).
rm -rf Microsoft
rm -rf Boot
rm -rf ubuntu