It also contains pointers to more information and information on how to. 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. First of all, boot the machine up and get access to the root partition. If the system partitions are on a software raid install grub 2 on all disks in the raid.
After booting up, scan the kernel output for status of your raid arrays. Afterwards we must install the grub bootloader on the second hard drive dev sdb. 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. As an experiment i also tried debian 9 and got the same issue. This will be helpful when one hdd fails theres still a working grub. Afterwards we must install the grub bootloader on the second hard drive devsdb. I have installed debian stretch on my first system using uefi. This also can be applied to ubuntu system as their are based on debian platform anyway.
Debian user forums view topic solved squeeze, grub2. This is a form of software raid using special drivers, and it is not. Sometimes you need to store data relative save and high available. Grub2 configuration debian squeeze 1 preliminary note. 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.
Installing grub2 on mdadm software raid in debian wheezy. 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. I will show you how to configure the software raid using debian. Recently i needed to setup software raid1 during debian installation process. Attempting to install grub to a disk with multiple partition labels or both partition label and filesystem. Install debian etch on a software raid 1 with sata disks. Im afraid what youve found is not a grub bug at all. 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 known limitation, and there isnt any way to fix this at the moment. Ubuntu install fails at grubinstall devsdb step with software raid. This guide explains how to set up software raid1 on an already running debian squeeze system. Installing a software raid 10 debian system with luks disk encryption.
Those few screenshots show how to install root on lvm on raid. This document contains installation instructions for the debian gnulinux 7. Install the grub boot loader to the master boot record. How to set up software raid1 on a running system incl. Installing a software raid 10 debian system with luks disk. This document gives an example on how to setup a clean linux system which can boot directly from a software raid device. When asked to install bootloader, install to first device. I cant help with installing grub now but what i did to get my raid running is i followed this instruction.
Fixing an unbootable computer after a failed grub installation can be a bit tricky. If the installation comes to partition method, use manual. 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. If grub installation fails, select continue without bootloader to. It does not automatically install itself on both drives. After first boot, consider executing dpkgreconfigure grubpc or dpkgreconfigure grubefiamd64 on efi systems, and install to all devices. Hi, i have an r410 with a sas6ir no dedicated raid card, 4x3tb drives, and it came preinstalled with windows. Once youre booting into your raid partitions, add the sda14 partitions to the appropriate raids, change the partition types on sda to 0xfd, and remember to clean up the legacy grub installation on sda with grub2 install devsda. Not to be confused with the linux kernels software raid feature multidisk. Sles 11 sp3 cant install grub on software raid hi ic3cat, as grub runs preboot, it cannot access the md devices, but will always have to deal with the physicals. On some systems its grub2install instead of grubinstall. To create a raid1 array on our already running system, we must prepare the devsdb hard.
So we decided to use a software raid 1 for the two disks. How do i install grub on a raid system installation. 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. Menu software raid on debian linux 14 january 2010 on hardware, filesystem, mdadm, monitoring, raid, linux. Continue installation process up to the install the grub boot loader on a. Installing grub2 on mdadm software raid in debian wheezyjessie principle. From what i have read the uefi partition and the boot partition must be on a raid 1 partition. 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. In case your next hdd wont boot then simply install grub to another drive. During partition creation process select physical volume for raid as. There may still be situations where it is more recommendable to install lilo another bootloader. 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. 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. Also, if you are using a live cd install, do not deselect grub install.
Uefi should be able to boot whatever disk hasnt failed, and grub install will write to the raid mounted at bootefi. 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. The only reason to use it instead of mdadm software raid is if you must dual boot with windows. Note that if grub reboots when loading itself, or if it freezes on phase 2, this is symptomatic of the installation of grub before rebooting see section 6. Since the command grubinstall devmd0 or grubinstall devmd0 produces an error, the main principle is to install grub on both drives that constitute the components of software raid 1. This is available in debian s default repositories. Debian squeeze on raid 0 and install grub2, damien moity, 20140702. 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. Notice that while the system is installing, the software raid transparently initializes the raid devices. How to configure software raid1 during installation process. Before we begin, we need to install mdadm, the tool that allows us to set up and manage software raid arrays in linux. If the two disks are devsda and devsdb, run both grubinstall devsda and grubinstall devsdb. May be debian installer has to explain more detail how to install grub2 with gpt or handle it automatically.
Type grubinstall dev mapper and press tab and tab again, you will get the names of the fake raid partitions. If you dont do that, then mdadm is much better supported and feature complete. I got the executing grub install dummy failed as well, but i dont have another os on my laptop. Booting gets me to a grub prompt with a list of possible commands.
Complete grubinstall dev mapper with the name of your whole fake disk. On debian this is called a reserved bios boot area. Centos 6 wont bootload grub on software raid devmd0 posted by curtis k in administration, centos 6, quick tips dec, 12 2012 1 comment if youve just installed centos 6 on software raid and it wont boot off devmd0, try the following. This guide explains how to set up software raid1 on an already running debian etch system. Setting up raid on an existing debianubuntu installation. There is no hardware acceleration as this is a fake raid controller. R410 w software raid always boots to grub shell after. 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. The most important tool for setting up raid is mdadm. New server, sata disks, the hardware raid controller is not really supported. How to configure a linux system to boot from a raid 1 device using grub, such as the system can boot even if the boot disk fails orand is removed. I have installed ubuntu, debian and centos dozens of times, and.
Version 1 of grub now known as grub legacy couldnt handle all combinations of lvm and 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. I am attempting to install debian using the software raid raid 1. Today i will share some thought on software raid under linux with you. For what its worth, you can choose to install grub to the devmapper device and it works in ubuntu. Debian squeeze on raid 0 and install grub2, damien moity debian squeeze on raid 0 and install grub2, andrey borzenkov, 20140702. If you look at the result of the command df h and you are using the mdmadm software raid 1 then you can only see the devmdx partitions. Reboot from the installation cd, remount all devices, and re install grub. For example grubinstall dev mapperiswjggdha7ssys note that there is no number at the end of the name.
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