From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Philippe Dhont (Sea-ro)" Subject: Help needed plz Date: Thu, 6 Feb 2003 16:16:17 +0100 Sender: linux-raid-owner@vger.kernel.org Message-ID: Mime-Version: 1.0 Content-Type: text/plain Return-path: To: "'linux-raid@vger.kernel.org'" List-Id: linux-raid.ids Hi all, I am new to softraid so i first readed some info about it and i also have the book "managing raid on linux." I don't want to use a pre-installed raid (like in suse or redhat etc...) but i want to do it from my slackware8.1 installation, from scratch! But there are some things not clear. This is the situation: I have a ATA-hda and a ATA-hdc (only 2 disks) My linux is installed on HDA and everything works fine, i recompiled the kernel and raid-drivers a succesfully started, the raidtools are also fine. But now some questions, maybe stupid but it's a different with hardware raid and i really want to know it. 1) i can't do a mkraid /dev/md0 ==> i get the message that hda1 (my current installation is on hda1 and everything else, i also boot from it) is already mounted so i guess this is normal but if i change "hda1 to hda" and "hdb1 to hdb" in the raidtab then everything works and it synchronizes (can see it in /proc/mdstat). But this synchronizes only once, i want to boot from md0 and this is of course not possible in this situation, it always boots from hda1. How do i have to boot from md0 ?? Do i have to make a raid1 with 3 disks ?? Or how do i have to do it ? I don't understand this part !! 1 installation disk and two disks for the raid1 and then install a system on the raid1 ?? And later on remove the install disk i first installed the raid arrey with ? 2)How do i have to install a linux on a md0 ? Do i start with the cd or something ? Never did it before. Thnx for the help, just put me on the way!! I tried before but i crashed my hdd's already twice !! But you have to start somewhere, right ? thnx Philippe Dhont