Installing xubuntu ubuntu debian to raid 1 via software. Solved cant install grub2 on software raid installation. On debian this is called a reserved bios boot area. How do you ensure grub is properly installed on a software raid array in ubuntu. 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. I routinely use software raid and lvm with debian and centos. Hello guy i need to install an ubuntu desktop with raid 1 software and i need to clarify points that i discovered were not so clair in my mind. How to set up software raid1 on a running lvm system incl. This is a form of software raid using special drivers, and it is not.
Unfortunately, this software doesnt come with most distributions by default. Disk partitions devhda1 and devhdc1 will be used as the members of the raid array md0, which will be mounted on the home partition. This guide explains how to set up software raid1 on an already running lvm system debian squeeze. When the bootloaderstep is entered i selected grub2 each time i loaded a new raid install.
Uefi should be able to boot whatever disk hasnt failed, and grubinstall will write to the raid mounted at bootefi. The grub2 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. Install debian software raid via 3 sata drives linux. Apr 19, 2018 now we have a visible fat32 filesystem on the esp. I get through the initial setup of the, hostname, fully quilified domain name, root password, new userpassword setup, and i get to the partioning and software raid configuration. Afterwards we must install the grub bootloader on the second hard drive devsdb.
Once you have reach debianinstaller partitioning screen. In this example, we use virtual machine qemu or kvm. Software raid 5 in ubuntudebian with mdadm zack reed. If you stop the boot at the grub selection menu, then you can get a grub prompt c and manually set up the first boot to the degraded raid like this. Regarding installing grub to the second drive, i find native grub installations i. Our team at linuxforce recently put together a debian server with lvm on a software raid5 volume. New server, sata disks, the hardware raid controller is not really supported. Proceed through the installer until you get to filesystem setup. After that, the computer was able to boot successfully. Installing grub2 on mdadm software raid in debian wheezyjessie principle. This has been possible through complex installation procedures in the past, but today the debian etch installer is capable of handling such an installation if you follow the proper steps, which i outline in this article. 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.
This is a known limitation, and there isnt any way to fix this at the moment. For software raid 0, i would think that if the size of grub which is written normally in the mbr is not bigger than the raid 0 stripe size, then it should not be any. Actually this works in debian squeeze and has for over a year. Raid arrays offer some compelling redundancy and performance enhancements over using multiple disks individually. How do i install grub on a raid system installation.
Even if one of the disks in the raid array fails, the system can still boot. Having the lvm in a different raid device is the most important part i guess. My question is will installer, grub2 and squeeze handle synchronization of. Installing grub2 on mdadm software raid in debian wheezy. If grub installation fails, select continue without bootloader to. Apr 28, 20 having the lvm in a different raid device is the most important part i guess. Mdadm is a commandline utility that allows for quick and easy manipulation of raid devices. Your firmware does not understand how to interpret linux software raid, so you cannot use a software raid setup for the efi system partition esp. It turns out that i need to run one additional command, grubmkconfig because i have changed the boot partition. Jun 24, 2005 in many cases hardware raid controllers are either too expensive or simply unavailablef or a particular system. Installing grub2 on mdadm software raid in debian wheezyjessie. Setting up raid on an existing debianubuntu installation. I get through the initial setup of the, hostname, fully quilified domain name, root password, new userpassword setup, and i get to the partioning and software raid. Those few screenshots show how to install root on lvm on raid.
Install debian etch on a software raid 1 with sata disks. After googling for hours on end i have come to the conclusion that installing linux to 3 sata drives and utilizing software raid. How to create a software raid 5 in linux mint ubuntu. Since raid hardware is very expensive, many motherboard manufacturers use multichannel controllers with special bios features to perform raid. We just need to remember that the smallest of the hdds or partitions dictates the arrays capacity. Configuring software raid 1 mirroring on windows 8 hdhow tostep by step guide. How to configure software raid1 during installation process. I am attempting to install debian using the software raid raid 1. Browse other questions tagged linux grub2 software raid. During partition creation process select physical volume for raid as. Grub2 has the ability to assemble raid arrays and read from them. Software raid 5 in ubuntu debian with mdadm 9 min read. In this guide, we demonstrated how to create various types of arrays using linuxs mdadm software raid utility. This guide explains how to set up software raid1 on an already running debian etch system.
For information on where grub should be installed on pc bios platforms, see bios installation in order to install grub under a unixlike os such as gnu, invoke the program grubinstall see invoking grubinstall as the superuser root. It can even deal with lvm where the entire raid array is a volume group and boot is in a logical volume on the raid array. In case your next hdd wont boot then simply install grub to another drive. Heres a quick way to calculate how much space youll have when youre complete. Install ubuntu with software raid mdadm for the installation, im using the live server installer for ubuntu server 18. Instead, you should make a small 1mb partition on each disk and raid them together and set it as a grub boot partition im not sure of the actual name. For software raid 0, i would think that if the size of grub which is written normally in the mbr is not bigger than the raid 0 stripe size, then it should not be any problem and grub could be written on the first physical drive seen by bios.
May 10, 2017 i have installed debian stretch on my first system using uefi. I cant help with installing grub now but what i did to get my raid running is i followed this instruction. Im afraid what youve found is not a grub bug at all. This also can be applied to ubuntu system as their are based on debian platform anyway. Or just zero out the whole disk dd ifdevzero ofdevsda.
What you should do is install grub to the raid array, eg devmd0. Your raid 10 array should now automatically be assembled and mounted each boot. Then add it back to the raid as you did before, starting from sfdisk d devsdb sfdisk devsda. Delete all partitions on both drives you will be using for raid1. Centos 6 wont bootload grub on software raid devmd0. Installs debian gnulinux 10 buster to a native zfs root filesystem using a debian live cd.
See the debian installation guide for more information. This time around, i will show you how to configure the software raid using debian. This page describes how to install debian using the serial ata raid. This script installs an esp partition to every raid disk, accompanied with a corresponding efi boot menu. Recently i needed to setup software raid1 during debian installation process. As i mentioned earlier, the software raid configuration can be quite troublesome and.
Dec 16, 2019 installing xubuntu ubuntu debian to raid 1 via software raid mdadm december 16, 2019 ben stetson this is really just my notes, but im publishing them in the hopes that this can aid someone else in their install. Solved cant install grub2 on software raid my several installs of raid0 utilized grub 2 with no problems. If the installation comes to partition method, use manual. This document gives an example on how to setup a clean linux system which can boot directly from a software raid device. Need one extra step on debian jessie i followed your instruction but it did not work. How to set up a software raid on linux addictivetips. After grub software raid installation, machine fails to boot with first drive removed or blanked. The example below shows how to create a software raid1 array on debian systems.
Hardware raid is generally faster, and does not place load on the cpu, and hardware raid can be used with any os. Since the command grubinstall devmd0 or grubinstall devmd0 produces an error, the main principle is to install grub on both drives that constitute the. 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. The best way to create a raid array on linux is to use the mdadm tool.
Browse other questions tagged linux grub2 software raid xfs or ask your own question. 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. Changed bug title to add news item about endoflife for old raid format from grubpc grub2 2. Install debian 10 buster to a native zfs root filesystem hn debian busterzfsroot. We can use full disks, or we can use same sized partitions on different sized drives. Im not aware of support in grub to declare two disks as being in a raid 1 array so that grubinstall would automatically write to both. I have installed debian stretch on my first system using uefi.
Sep 12, 2015 hardware raid is generally faster, and does not place load on the cpu, and hardware raid can be used with any os. As we created software raid 5 in linux system and mounted in directory to store data on it. This is the preferable and more reliable method to establish software raid arrays. Setting up simple software raid1 on debian 5 youtube. Afterwards we must install the grub bootloader on the second hard drive dev sdb.
Grub2 configuration debian squeeze how to set up software raid1 on a running system incl. 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. I want to use grub2 as boot loader, but i read that is needed to be created a bios boot partition. If the two disks are devsda and devsdb, run both grubinstall devsda and grubinstall devsdb. Continue installation process up to the install the grub boot loader on a. Mar 27, 2019 im afraid what youve found is not a grub bug at all. Hello, after trying a couple of times to install debian on a raid 10 array mdadm i still failed to install the grub bootloader on the array.
Unable to install grub to software raid array in ubuntu. Cannot install grub to raid1 md0 ask question asked 7 years, 5 months ago. This guide explains how to set up software raid1 on an already running debian squeeze system. Not to be confused with the linux kernels software raid feature multidisk. It provides the ability for one drive to fail without any data loss. When i first tried booting it, the grub screen came up, but selecting any kernel resulted in an endless stream of system messages, and i never got to login prompt.
Debian user forums view topic solved squeeze, grub2 and. From what i have read the uefi partition and the boot partition must be on a raid 1 partition. My guess is that it all depends on the type of raid. This time we are going to explain you here about the concept and configuration of software raid10 step wise in detail. When the bootloaderstep is entered i selected grub2 each time i loaded a new raid. So we decided to use a software raid 1 for the two disks.
Debian user forums view topic solved squeeze, grub2. With this program, users can create a software raid array in a matter of minutes. May 25, 2019 hello guy i need to install an ubuntu desktop with raid 1 software and i need to clarify points that i discovered were not so clair in my mind. If you are still getting errors, try taking the disk out of the raid and zeroing out more data from the beginning and the end. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Raid 5 requires a minimum of 3 drives, and all should be the same size.
The resulting system is a fully updateable debian system with no quirks or workarounds. Reinstalling the grub boot loader the tao of debian. Whilst the new code handling the raid io still runs in the kernel, devicemapper is generally. But now i need to figure out how to add redundancy to the software raid 1 since i believe boot entries are only added to one disk during installation time. This article describes how to setup a linux system that can boot directly from a software raid 1 device using grub. Not to be confused with the linux kernels software raid feature multidisk device. Turned out that step 4 was doing nothing raid related for me. Oct 26, 2017 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. How to increase existing software raid 5 storage capacity in linux.