From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wols Lists Subject: Linux raid wiki - setting up a system - advice wanted :-) Date: Sun, 25 Sep 2016 22:16:24 +0100 Message-ID: <57E83EA8.9060809@youngman.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid List-Id: linux-raid.ids This is a great way for learning lots about raid :-) I'm planning a section on setting up a new system, and I need to know what will happen if you give entire drives to mdadm. Does it leave the first 2 megs empty? Basically, what I'm asking is if I do mdadm --create /dev/md/bigarray -add /dev/sda /dev/sdb /dev/sdc (note I am passing the entire drive, not the first partition) and then I install grub on those drives, will I trash the array? Cheers, Wol