I configured raid using bios, launched try ubuntu mode and added dmraid as described at the top of the page. Sometimes you need to store data relative save and high available. May 10, 2017 i have installed debian stretch on my first system using uefi. Mac os x, linux, windows and other it tips and tricks. Jan 14, 2010 software raid on debian linux 14 january 2010 on hardware, filesystem, mdadm, monitoring, raid, linux. That adds a lot of overhead that slows down raid and you dont need the redundancy on swap. Cannot install grub to raid1 md0 ask question asked 7 years, 5 months ago. So we decided to use a software raid 1 for the two disks. In our earlier articles, weve seen how to setup a raid 0 and raid 1 with minimum 2 number of disks. 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. By default, the grub boot loader only were installed in one of the hard disk only.
Im trying to setup and install ubuntu on a raid 1 setup. To setup raid 10, we need at least 4 number of disks. If one uses this new feature, then all data on the drive is mirrored at all times. Its pretty straight forward installing an operating system on hardware raid, but what if you want to use software raid. The role of this machice is to be used as a storagenas system. Uefi should be able to boot whatever disk hasnt failed, and grub install will write to the raid mounted at bootefi. Linux cannot autodetect newer versions without a ramdisk. You likely need to setup grub on both disks since youre in raid1.
New server, sata disks, the hardware raid controller is not really supported. The setup went fine, but i could not boot from grub. Ive just managed to make work a gigabyte ma78gpmds2h motherboard raid controller in raid1 mode. Howto create software raid 1 mirror on debian linux. Apr 19, 2018 now we have a visible fat32 filesystem on the esp. Recover software raid1 after hdd failure on debian squeeze. Using modifications of the debian howto referenced below and suggestions from another poster to this topic, i have been able to implement raid1 on an existing installation of centos. Debian user forums view topic solved cannot make grub2. Linux create software raid 1 mirror array nixcraft.
With software raid1 howtoforge linux howtos and tutorials and. How to configure software raid1 during installation process. At the stage of the install where it is attempting to install grub it will. This document gives an example on how to setup a clean linux system which can boot directly from a software raid device.
The mdadm utility can be used to create and manage storage arrays using linuxs software raid capabilities. 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. Im not aware of support in grub to declare two disks as being in a raid1 array so that grubinstall would automatically write to both. How do i create software raid 1 arrays on linux systems without using gui tools or installer options. Install debian etch on a software raid 1 with sata disks. Installing grub2 on mdadm software raid in debian wheezy. However, since then lots more uefionly x86 machines were produced so we enabled it. I have installed ubuntu, debian and centos dozens of times, and each time i get sent to a grub shell not rescue. Apr 28, 20 having the lvm in a different raid device is the most important part i guess. This article refers to the use of the old grub now known also as grublegacy. Nov 19, 2010 this time around, i will show you how to configure the software raid using debian. So the goal of this howto is to put the partition table, and boot, root, and swap partitions on bootable raid 1 mirror device. This page contains some screenshots to demonstrate it, and applies to debian 5. How to configure a debian squeeze linux system to boot from a raid1 device using grub, such as the system can boot even if the boot disk fails orand is removed.
In this guide we will be installing debian 9 aka stretch on a physical server with 4 disks. Previous post how to setup software raid for centos next post how to setup sofware raid in freebsd. Linux create software raid 1 mirror array last updated february 2, 2010 in categories file system, linux, storage h ow do i create software raid 1 arrays on linux systems without using gui tools or installer options. This is a known limitation, and there isnt any way to fix this at the moment. By default it tries my first disk, which gives a fatal error.
This also can be applied to ubuntu system as their are based on debian platform anyway. Im afraid what youve found is not a grub bug at all. Menu software raid on debian linux 14 january 2010 on hardware, filesystem, mdadm, monitoring, raid, linux. Cannot install grub to raid1 md0 ask question asked 7 years. From what i have read the uefi partition and the boot partition must be on a raid 1 partition. Here we will use both raid 0 and raid 1 to perform a raid 10 setup with minimum of 4 drives. 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.
During the install, make sure grub is installed to the mbrgpt of the primary disk. 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. In my setup, i have two disks that are each formatted in the following way. Ubuntu server wont boot after clean install with software.
There are four main partitions prior to the debian installation. 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. Install ubuntu on raid 0 and uefigpt system github. This means youll need to run grubinstall again if you replace one disk. This article describes how to setup a linux system that can boot directly from a software raid1 device using grub. How to set up software raid1 on a running system incl. Installing a software raid 10 debian system with luks disk.
The best way to use two or more disks for swap as in this situation is to set both partitions to the type swap then in. Please note that with a software implementation, the raid 1 level is the only option for the boot partition, because bootloaders reading the boot partition do not understand raid, but a raid 1 component partition can be read as a normal partition. R410 w software raid always boots to grub shell after. Im not aware of support in grub to declare two disks as being in a raid 1 array so that grub install would automatically write to both. Administrators have great flexibility in coordinating their individual storage devices and creating logical storage devices that have greater performance or redundancy characteristics. Today i will share some thought on software raid under linux with you. 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. My question is will installer, grub2 and squeeze handle synchronization of. If you have 2 x 500 gb hdd then total space become 1 tb. Nov 30, 2006 new server, sata disks, the hardware raid controller is not really supported. Installing xubuntu ubuntu debian to raid 1 via software. 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. This guide explains how to set up software raid1 on an already running debian etch system. This means youll need to run grub install again if you replace one disk.
I have installed debian stretch on my first system using uefi. 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. Uefi should be able to boot whatever disk hasnt failed, and grubinstall will write to the raid mounted at bootefi. Howto create software raid 1 mirror on debian linux a raid1 array on linux is fairly straightforward to setup. 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. Nov 19, 2014 raid 10 is a combine of raid 0 and raid 1 to form a raid 10. I want to use grub2 as boot loader, but i read that is needed to be created a bios boot partition. We will create a software raid 10 setup, with lvm and luks full disk encryption. Even if one of the disks in the raid array fails, the system can still boot. 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. The example will be using raid 1 for everything except swap and temporary data. Linux create software raid 1 mirror array last updated february 2, 2010 in categories. My guess is that it all depends on the type of raid.
I have an r410 with a sas6ir no dedicated raid card, 4x3tb drives, and it came preinstalled with windows. So the goal of this howto is to put the partition table, and boot, root, and swap partitions on bootable raid1 mirror device. The problem is at the end of the installation, it tries to install grub. Sep 26, 2017 how to install and configure debian 9. Debian user forums view topic solved squeeze, grub2 and. Grub2 configuration debian squeeze 1 preliminary note. Raid 10 is a combine of raid 0 and raid 1 to form a raid 10. The most important tool for setting up raid is mdadm.
Oct 04, 20 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. R410 w software raid always boots to grub shell after linux. Mar 27, 2019 im afraid what youve found is not a grub bug at all. Using configure software raid im creating raid 1 devices on pairs of partitions earlier marked as. This article describes how to setup a linux system that can boot directly from a software raid 1 device using grub. I am attempting to install debian using the software raid raid 1. Debian user forums view topic solved squeeze, grub2. I parted the 65gb for debian, had a very similar setup almost identical as shown in that youtube video. 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. In this tutorial, youll learn how to install ubuntu server 16. Debian squeeze this guide explains how to set up software raid1 on a. Finally i wanted to install grub on the new disk being devsdb now and it. If the installation comes to partition method, use manual.
To create a raid1 array on our already running system, we must prepare the devsdb hard. As i mentioned earlier, the software raid configuration can be quite troublesome and time consuming, but at least it is reliable and save a lot of cost when buying a hardware. If your rescue disk does not have grub, i suggest downloading and burning knoppix on a cd. Installing grub2 on mdadm software raid in debian wheezyjessie.
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