@Bernard: You were right, I was not in EFI mode. I've followed http://www.rodsbooks.com/ubuntu-efi/index.html and http://mennucc1.debian.net/macbook_linux_efi.html . Now I can suspend and get AHCI mode back after suspend. Do you know how I could make it so that update-grub updates /efi/EFI/grub/grub.efi instead of /boot/grub/grub.cfg?
@Bernard: You were right, I was not in EFI mode. I've followed http:// www.rodsbooks. com/ubuntu- efi/index. html and http:// mennucc1. debian. net/macbook_ linux_efi. html . Now I can suspend and get AHCI mode back after suspend. Do you know how I could make it so that update-grub updates /efi/EFI/ grub/grub. efi instead of /boot/grub/ grub.cfg?