From mboxrd@z Thu Jan 1 00:00:00 1970 From: AdsGroup Subject: grub and mdadm Date: Sun, 09 Mar 2014 18:24:23 -0600 Message-ID: <531D0637.4080009@shaw.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids In the past I have used whole drives (<2TB) as block devices for mdadm raid and a separate single drive for grub, boot, swap, root and home with no problem. I now want to upgrade (non-UEFI bios machine) to multiple 3TB drives thinking 3 active in Raid 5 with 1 spare again using the full drives as block devices and installing Lubuntu 12.10 LTS alternate for server/command line. Using Lubuntu 13.10 desktop live (therefore recent mdadm, gparted, parted, etc) I've created and easily assembled/started the mdadm array /dev/md0 from sd[a-c], sdd as spare. I then partition /dev/md0 on MIB boundaries the following in order 1MB free space, 2MB bios-grub, 200MB boot, 10GB swap, remainder root (5.6 TB?) with 1MB trailing free space. Then rebooting to 12.10 alternate for install I have difficulties installing grub anywhere. Even fails using boot-repair (link below) Any ideas? Ashley https://help.ubuntu.com/community/Boot-Repair