Grub configuration debian lenny kreation next support. I do run raid 0 for debian lenny and i have found the safest and easiest way to do it is to load a 3 drive up as boot and mbr and then the kernel will load the required modules to. This example has two physical disks, devsda and devsdb, which are identical. Finally, update the initramfs again so that the early boot process does not try to bring an unavailable array online. Automatic raid disk assembly in backup mode can corrupt data. Setting up raid 1 mirror in linux mint or any distro. New server, sata disks, the hardware raid controller is not really supported. Example partitions of a 1tib disk follow, set each raid partition to fd. Write changes to the partition table when it asks you to. Disk partitions devhda1 and devhdc1 will be used as the members of the raid array md0, which will be mounted on the home partition. Some time ago i decided to try 64bit version of debian. After nearly two years of work the the debian development team have published debian gnulinux 5. Almost two years since the appearance of version 4.
Setting up raid on an existing debianubuntu installation. I too run raid1 on all my debian systems so ill add comments from my experience. Luckily i did a backup of the entire system before beginning, so i was able to restore the system and begin again after i could not get the system to boot off the raid array. So we decided to use a software raid 1 for the two disks. Does grub2 really support putting boot on a software raid1 partition with 1. Debian user forums view topic installing fresh debian. When you boot up the computer, you are going to see an option that allows you to configure the raid.
Software raid 5 in ubuntudebian with mdadm 9 min read. Autoassembly of raid arrays in rescue mode can corrupt data rescue mode should be used with great care when software raid arrays were in use on the system to rescue. Migration to amd64 debian lenny using software raid1. Now, because the installer writes grub only to the first disk, we. Creating software raid0 stripe on two devices using. An ideal answer would link to a tutorial that explains how to move a boot partition on a nonraid partition to a raid5 partition.
Im running debian lenny testing which has an up to date kernel, etc. Im setting up my desktop to use software raid 5 replacing a 250g and 500g home drive with 3 x 500g drives. Today i will share some thought on software raid under linux with you. Raid is redundant array of inexpensive disks, used for high availability and reliability in large scale environments, where data need to be protected than normal use. Our team at linuxforce recently put together a debian server with lvm on a software raid5 volume. This guide explains how to set up software raid1 on an already running debian lenny system. Rescue mode should be used with great care when software raid arrays were in use on the system to rescue. I am using four 2 tb drives sdfsdi to create three raid 1 devices.
Menu software raid on debian linux 14 january 2010 on hardware, filesystem, mdadm, monitoring, raid, linux. That said, linux software raid is more robust and better supported and thus, recommended over fakeraid if you do not need to dual boot with windows. Installing fresh debian 5 lenny on raid 1 by robbo007. I had the same probem, efi boot with two disks and software raid devsda devsda1 200mb efi partition devsda2 20g physical for raid devsda3 980g physical for raid. I understand that grublegacy dont support ext4 while grub2 dont support software raid. Sometimes you need to store data relative save and high available. How to create raid arrays with mdadm on debian 9 digitalocean.
I do run raid 0 for debian lenny and i have found the safest and easiest way to do it is to load a 3 drive up as boot and mbr and then the kernel will load the required modules to see the raid card. Setting up raid 1 mirror on linux mint xfce or any debian based linux boot into debian linux distro from live disk or usb drive this is done with 2 500 sata drives. Temporarily keeping the usb stick in place will allow you to boot the installed system and correct the. Booting with software raid almost always requires a separate boot partition, especially with older versions of grub.
This is fine for desktop and laptop users, but on a server, you need a large partition. Alexander kojevnikov blog diy nas with debian lenny. This page contains some screenshots to demonstrate it, and applies to debian 5. How to configure software raid1 during installation process. In many cases hardware raid controllers are either too expensive or simply unavailablef or a particular system. How to set up software raid1 on a running system incl. This means youll need to run grub install again if you replace one disk. Im using an alternate installation cd in order to configure a software raid from which to boot. This is a software that being developed to handle the raid procedure inside the server. F rankly speaking, you cannot create a linux partition larger than 2 tb using the fdisk command.
Not sure how to make my software raid bootable from both disk. For example, you cannot create 3tb or 4tb partition size raid based using the fdisk command. Thanks to debianinstallers rescue mode, its very easy to recover a problem. How to configure software raid1 during installation process by milosz galazka on october 4, 20 and tagged with debian, system installation, system management, software raid recently i needed to setup software raid1 during debian installation process.
The mdadm utility can be used to create and manage storage arrays using linuxs software raid capabilities. So, it looks like virtualbox has a problem creating a statically sized virtual hard disk on a linux software raid. And swap is on raid too, which is controversy solution but it the best one for me, of course. We will learn how to configure software raid, how to examine raid devices, how to see the detail information about raid devices along with active components. Siju rebuilding raid 1 array in linux with a new hard disk after a disk fault. This is a form of software raid using special drivers, and it is not necessarily faster than true software raid. In our earlier articles, weve seen how to setup a raid 0 and raid 1 with minimum 2 number of disks. Rescue mode should be used with great care when software raid arrays were in use on the.
This wiki describes how to get linux to see the raid as one disk and boot from it in the same way that windows will install on this type of device. Installing debian lenny on ubuntu mobile operating. Setting up a bootable multidevice raid 1 using linux software. Howto create software raid 1 mirror on debian linux a raid1 array on linux is fairly straightforward to setup. Install debian etch on a software raid 1 with sata disks. In the main partitioning menu select configure software raid. This time we are going to explain you here about the concept and configuration of software raid10 step wise in detail. Debian software packages in buster, subsection libs.
This document gives an example on how to setup a clean linux system which can boot directly from a software raid device. I did the install on a debian testing system lennyamd64, but ive checked that everything applies to etch as well. The rescue mode must be used with great caution when software raid was used on the system to be rescued. Actual screen shot from terminal of steps taken during rebuild on 10june2010 on debian lenny linux 1 check the partitions layout on the current hard disk srv1. To setup raid 10, we need at least 4 number of disks. If the installation comes to partition method, use manual. After grub software raid installation, machine fails to boot with first drive removed or blanked. How to set up software raid 1 on an existing linux distribution. Creating software raid0 stripe on two devices using mdadm tool in linux part 2. Installing and booting from a raid1 boot with raidsomethingelse for everything else has worked fine for me with a number of times debianlenny, and debianetch before that. Software packages in buster, subsection libs 389dsbaselibs 1. Grub wont boot from gpt raid gave up waiting for root device 2. Does grub2 really support putting boot on a software raid5 partition.
There are many howtos available on the internet that describe several different schemes for utilizing linux software raid to provide mirroring of boot, root, and even other partitions. Software raid 5 in ubuntudebian with mdadm zack reed. The grub bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails no matter which one. Next, update the initramfs, so that the os has access to your new mdadm array at boot time. The example below shows how to create a software raid1 array on debian systems. The grub bootloader will be configured in such a way that how to set up software raid1 on a running system incl. Migrating from i386 debian etch to amd64 lenny using existing software raid1 configuration last update. Alpines default bootloader extlinux cant handle either. Another raid1 device will be used as swap, to have a fault tolerant page swapping.
Raid is just a collection of disks in a pool to become a logical volume and. Debian releases debian lenny release information debian lenny installation. Linux creating a partition size larger than 2tb nixcraft. Since raid hardware is very expensive, many motherboard manufacturers use multichannel controllers with special bios features to perform raid. Installing and booting from a raid1 boot with raid somethingelse for everything else has worked fine for me with a number of times debian lenny, and debian etch before that. Debian user forums view topic installing debian lenny. Raid 10 is a combine of raid 0 and raid 1 to form a raid 10. With either set of disks, everything else works fine and i was able to create an ubuntu vm with a dynamically sized disk. From what ive been reading, it looks like linux cant boot from a software raid 5 array. The goal is to setup a raid1 device to mount as and to boot from. Here we will use both raid 0 and raid 1 to perform a raid 10 setup with minimum of 4 drives.
This guide explains how to set up software raid1 on an already running debian etch system. The backup mode scripts automatically assemble the disks. Howto create software raid 1 mirror on debian linux. After everything is installed, boot your server, type your passphrase to unlock the encrypted partition, and login as root.
1319 316 794 787 194 1087 1412 637 1266 1021 1464 137 1190 1410 1242 1 976 501 1112 325 556 529 1129 972 206 311 1011 1212 715 329 405 74 737 1297 598