Christian Seiler a écrit : > > Ok, if you use MBR, only the first 512 bytes are used for the MBR > partition table, so that the gap between those bytes and the first > partition (and there is *always* a gap, the size depends on the > details of the logical geometry of the disk) has traditionally > been used under Linux (among others) to put the boot loader there. > > Problem is that GPT doesn't have such a gap.
GPT usually also has such a gap for partition alignment purpose. But GRUB won't use it. The gap is currently about 1 MiB regardless of the partition table type. > At least Jessie's d-i appears to only be able to create MBR > partition tables That's wrong. I have created GPT partition tables with Wheezy's installer. IIRC, it creates a GPT partition table by default when booted in EFI mode.