Feeding the cloud posts setting up raid on an existing debianubuntu installation edit. This article describes how to setup a linux system that can boot directly from a software raid 1 device using grub. Installing a software raid 10 debian system with luks disk. Disconected the old disc sda, the system booted from the degraded raid array. 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. 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. If the two disks are devsda and devsdb, run both grubinstall devsda and grubinstall devsdb. Troubleshooting alternatives mdadm an alternative for dmraid is mdadm. Nov 19, 2010 how to setup software raid in debian ubuntu november 19, 2010 awang apandy 2 comments this time around, i will show you how to configure the software raid using debian.
Since raid hardware is very expensive, many motherboard manufacturers use multichannel controllers with special bios features to perform raid. Cannot install grub to raid1 md0 ask question asked 7 years, 5 months ago. That adds a lot of overhead that slows down raid and you dont need the redundancy on swap. In addition to the command, i upgraded the grubcommon and grubpc packages to the ones provided by wheezy and added an entry for md1 in bootgrubdevice. I have installed debian stretch on my first system using uefi.
Cannot install grub to raid1 md0 ask question asked 7 years. I did try to reinstall grub2 but that didnt change the. Im afraid what youve found is not a grub bug at all. The role of this machice is to be used as a storagenas system. I am attempting to install debian using the software raid raid 1. When asked to install bootloader, install to first device. Mar 27, 2019 im afraid what youve found is not a grub bug at all. Its pretty straight forward installing an operating system on hardware raid, but what if you want to use software raid. My guess is that it all depends on the type of raid. The procedure assumes that you have 2 indentical hard disks on your computer. For example grubinstall devmapperiswjggdha7ssys note that there is no number at the end of the name. Grub2 configuration debian squeeze how to set up software raid1 on a running system incl.
The method i use is to boot another copy of grub from somewhere bootable cd, usb stick, or network boot its easy to boot grub from any of these. Debian software packages in buster, subsection debian. Devicemapper software raid support tool shared library udeb libdnsexport1104udeb. Continue installation process up to the install the grub boot loader on a hard disk menu. Install ubuntu on raid 0 and uefigpt system github. This will be helpful when one hdd fails theres still a working grub. Attempting to install grub to a disk with multiple partition labels or both partition label and filesystem. Grub2 configuration debian squeeze this guide explains how to set up software raid1 on a. 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. It also contains pointers to more information and information on how to make the most of your new debian system. In this tutorial, youll learn how to install ubuntu server 16. Simply shutting down the pc, removing the first disk and switching it on. To create, format and resize the array we will need to install only one package, mdadm. May 10, 2017 i have installed debian stretch on my first system using uefi.
This guide explains how to set up software raid1 on an already running debian squeeze system. Previous post how to setup software raid for centos next post how to setup sofware raid in freebsd. This guide explains how to set up software raid1 on an already running debian etch system. How do i install grub on a raid system installation. Gnupg keys of the debian archive debianeduinstalludeb 2. Installing xubuntu ubuntu debian to raid 1 via software raid mdadm december 16, 2019 ben stetson. Mac os x, linux, windows and other it tips and tricks. Debian user forums view topic solved squeeze, grub2. In testing i have found that you must install grub in two distinct steps. After grub software raid installation, machine fails to boot with first drive removed or blanked. It seems on legacy bios machines you need something called a bios boot partition which may be as small as 30kb on the drive, this is required to store phase 2 of the grub boot process. Make sure that your grub configuration doesnt hardcode disks like hd0, but instead searches for the boot and root filesystems uuids. Oct 26, 2017 also, if you are using a live cd install, do not deselect grub install. After first boot, consider executing dpkgreconfigure grubpc or dpkgreconfigure grubefiamd64 on efi systems, and install to all devices.
Even if one of the disks in the raid array fails, the system can still boot. If the two disks are devsda and devsdb, run both grubinstall devsda and grubinstall dev sdb. Setting up raid on an existing debianubuntu installation. 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. Grub2 configuration debian squeeze page 2 slack brings the team together, wherever you are how to set up software raid1 on a running system incl. This is a known limitation, and there isnt any way to fix this at the moment.
How to set up software raid1 on a running system incl. Select all grub mkdevicemap grub install hd0 grub install hd1 for some strange reason grub install devsdb will not install grub2 on sdb properly, while grub install devsda will install grub2 on sda properly. To install grub 2 on both mirrored drives in raid 1 configuration on debian 6 squeeze, type this. The debian installer will set everything up for you if you choose that option and ubuntu. R410 w software raid always boots to grub shell after. Thats the basics of multibooting of dual booting with linux and windows using grub. This document explains how to set up debian gnulinux on a computer with your root partition on a raid volume managed with lvm. If the installation allows it, you must select both sda and sdb for the installation of grub2. This document contains installation instructions for the debian gnulinux 10 system codename buster, for the 64bit pc amd64 architecture. 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. In addition to the command, i upgraded the grub common and grub pc packages to the ones provided by wheezy and added an entry for md1 in boot grub device. I have installed ubuntu, debian and centos dozens of times, and each time i get sent to a grub shell not rescue.
Nov 15, 2011 software raid 5 in ubuntu debian with mdadm 9 min read. I have 2 disk western digital wd2002faex 2tb and i want to install squeeze with software raid 1 and gpt instead of old msdos partition map. The best possible time to set this up is of course when you first install the operating system. In this guide we will be installing debian 9 aka stretch on a physical server with 4 disks. If the installation does not allow it, then install grub2 on sda and after the installation of squeeze is completed and you reboot, install grub2 on sdb. Debian user forums view topic solved squeeze, grub2 and. Software raid 5 in ubuntudebian with mdadm zack reed.
I have an r410 with a sas6ir no dedicated raid card, 4x3tb drives, and it came preinstalled with windows. After first boot, consider executing dpkgreconfigure grub pc or dpkgreconfigure grub efiamd64 on efi systems, and install to all devices. R410 w software raid always boots to grub shell after linux. Changed system type of partition 1 to fd linux raid autodetect command m.
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. 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. How to configure software raid1 during installation process. Debian software packages in stretch, subsection admin. Installing a software raid 10 debian system with luks disk encryption. This guide explains how to set up software raid1 on an already running debian lenny system. Type grubinstall devmapper and press tab and tab again, you will get the names of the fake raid partitions.
Now boot off your fake raid and see grub starting your new debian installation. Uefi should be able to boot whatever disk hasnt failed, and grubinstall will write to the raid mounted at bootefi. 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. Installing grub2 on mdadm software raid in debian wheezyjessie. I get through the initial setup of the, hostname, fully quilified domain name, root password, new userpassword setup, and i get. We will create a software raid 10 setup, with lvm and luks full disk encryption. 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 is a form of software raid using special drivers, and it is not necessarily faster than true software raid.
However, when i get the raid complete, and continue the install, it fails to load grub2, because it is trying to install to devsda instead of dev. Apr 19, 2018 now we have a visible fat32 filesystem on the esp. Installing grub2 on mdadm software raid in debian wheezy. 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 the usage is. Home how to set up software raid1 on a running system incl.
The grub bootloader will be configured in such a way that. Installing xubuntu ubuntu debian to raid 1 via software. From what i have read the uefi partition and the boot partition must be on a raid 1 partition. 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 etcfstab, set them with the same priority.
Here we discuss how to configure and install grub and the basics of multibooting of dual booting with linux and windows using grub. 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. I cant help with installing grub now but what i did to get my raid running is i followed this instruction. Also, if you are using a live cd install, do not deselect grub install. 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. For installation images and documentation about how to install bullseye which is currently testing, see the debianinstaller page to install debian 10. I want to use grub2 as boot loader, but i read that is needed to be created. Uefi should be able to boot whatever disk hasnt failed, and grub install will write to the raid mounted at bootefi. Sep 26, 2017 how to install and configure debian 9. 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.
Software packages in stretch, subsection admin 0install 2. Install the grub boot loader to the master boot record. Reads nf and then passes the button to the windows boot loader. Select all grubmkdevicemap grubinstall hd0 grubinstall hd1 for some strange reason grubinstall devsdb will not install grub2 on sdb properly, while grubinstall devsda will install grub2 on sda properly. 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. You will however probably need to tune some options in the grub config files to get grub the way you like it. Our team at linuxforce recently put together a debian server with lvm on a software raid5 volume. Afterwards we must install the grub bootloader on the second hard drive dev sdb. It does not automatically install itself on both drives. Complete grubinstall devmapper with the name of your whole fake disk.
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