Following this, there are also no guides on installing the grub bootloader to both gpt partitioned devices afterwards. In this blog, we will check out how to install arch linux by setting software raid 1. Feb 27, 2020 grub loads before the linux kernel loads. Installing gentoo with grub2, gpt, luks and software raid. Proceed through the installer until you get to filesystem. Please see the following links for more information. R410 w software raid always boots to grub shell after linux. 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. Install ubuntu on a software raid array esecuredata inc. Mar 17, 20 having seen our plain and simple install of ubuntu 12.
Mar 06, 2015 if the system partitions are on a software raid install grub 2 on all disks in the raid. The setup and install goes fine following the instructions here. Mar 26, 2015 creating a software raid array in operating system software is the easiest way to go. After first boot, consider executing dpkgreconfigure grubpc or dpkgreconfigure grubefiamd64 on efi systems, and install to all devices. Nov 28, 2019 following this, there are also no guides on installing the grub bootloader to both gpt partitioned devices afterwards. Solved installing and using grub on lvm installation.
Im trying to setup and install ubuntu on a raid 1 setup. I am trying to install arch on a server with a twodisk software raid 1 mirroring array. When the bootloaderstep is entered i selected grub2 each time i loaded a new raid install. I select manual set and create the paritions and software raid and assign ext 4 and swap. This guide will show how one can use mdadm to install ubuntu server on a raid 1 setup. If the two disks are devsda and devsdb, run both grubinstall devsda and grubinstall devsdb. Creating a software raid array in operating system software is the easiest way to go. After first boot, consider executing dpkgreconfigure grub pc or dpkgreconfigure grub efiamd64 on efi systems, and install to all devices. The topic of raid arrays is a complex one due to the plethora of ways raid can be configured. If the default hdd fails then raid will ask you to boot from a degraded disk.
Proceed through the installer until you get to filesystem setup. 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. Leave all the screens unchanged and click ok until you are asked where to install grub, select the entry that matches your raid array device. When the bootloaderstep is entered i selected grub2 each time i. It is an advanced tool for raid management that will be used to create a etcnf within the installation environment. Install grub 2 on a fake raid system techspot forums. 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. From the grub shell run the following commands to install grub onto the disk devsdb. Uefi should be able to boot whatever disk hasnt failed, and grubinstall will write to the raid mounted at bootefi. Solved cant install grub2 on software raid my several installs of raid0 utilized grub 2 with no problems. If you decide to use the tip described into this article, do it at your own risk, and please do your own tests. Installing gentoo with grub2, gpt, luks and software raid mdraidmdadm so for various reasons i wanted to install gentoo utilizing full disk encryption with luks except for boot ofc, mdraid, gpt and grub2. Sep 12, 2015 in case your next hdd wont boot then simply install grub to another drive. If you are using software raid, you must have configured it yourself.
Xenserver 7 raid1 mdadm after install running system. Solved installing and using grub on lvm your first partition starts at block 63. Mar 20, 2011 quote you can simulate a diskpartition failure in software raid by using mdadm. Jun 02, 2016 grubinstall devsda grubinstall devsdb now you can reboot the server and use it please note that you should create sr on the host system after the raid configuration. If your server is located in a remote area, the best practice may be to configure this to occur automatically. So you need to make sure that the proper lvm tools package is installed. Install ubuntu with software raid mdadm for the installation, im using the live server installer for ubuntu server 18. In case your next hdd wont boot then simply install grub to another drive. Grub only has limited filesystem support built into itself. Advantagesdisadvantages of installing grub on a software raid.
If it does not come with raid10 support then boot must be on its own regular partition that can be accessed without first assembling raid. Linux software raid disc replacement procedure web and. Grub has gotten so bloated that it now writes to not only the mbr, but also to the space from the mbr after sector 0 to the start of the first partition, which these days is sector 2048. Installing grub2 on ubuntu with software raid mirroring. Or just zero out the whole disk dd ifdevzero ofdevsda. Windows 8 comes with everything you need to use software raid, while the linux package. And then yes, you install grub s bootloader on all your drives so the server can boot from any of them. Grub2 configuration debian squeeze 1 preliminary note.
When installing packages, make sure that you install lvm2, mdadm not raidtools, and grub. Cannot install grub to raid1 md0 ask question asked 7 years. Installation of arch linux using software raid serveradminz. Run update grub after making the changes and amend etcfstab to match the new devices such as e. Thats the basics of multibooting of dual booting with linux and windows using grub. Centos 7 install with uefi boot and software raid1. R410 w software raid always boots to grub shell after linux install appreciate the reply, but i just bit the bullet and installed ubuntu on a flash drive and use fstab to mount partitions of the assembled raid on different parts of the filesystem.
May 30, 20 installing gentoo with grub2, gpt, luks and software raid mdraidmdadm so for various reasons i wanted to install gentoo utilizing full disk encryption with luks except for boot ofc, mdraid, gpt and grub2. That adds a lot of overhead that slows down raid and you dont need the redundancy on swap. Assuming its raid 1, then scroll down to select raid 1. Ticky them both, then it will install grub to them. The most important tool for setting up raid is mdadm. By default it tries my first disk, which gives a fatal error. How to set up software raid 0 for windows and linux pc gamer. Installing grub2 on mdadm software raid in debian wheezy. When the raid array has finished to resync, run again grub to install the loader on the new partition with root hd1,0 and setup hd1. Starting the installation begin the installation by booting up the ubuntu server dvd or usb and then following the wizard through to the partition disks screen. Run updategrub after making the changes and amend etcfstab to match the new devices such as e. 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. If the system partitions are on a software raid install grub 2 on all disks in the raid.
Make sure that your grub configuration doesnt hardcode disks like hd0, but instead searches for the boot and root filesystems uuids. Jun 24, 2005 when installing packages, make sure that you install lvm2, mdadm not raidtools, and grub. 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. How to set up software raid1 on a running system incl. Jan 25, 2017 if you are using software raid, you must have configured it yourself. Setting up raid on an existing debianubuntu installation.
To install grub on the new drive, enter the following. There are a few minor differences between doing this on 14. Arch linux is a generalpurpose linux distribution for x8664 computers and is very popular among the intermediate and advanced linux users. Centos 6 wont bootload grub on software raid devmd0.
This is the one advantage of having grub over raid1, but its a big one. How do i install grub on a raid system installation. Reinstall grub devmd0 may be different for you depending on how you configured your software raid grubinstall devmd0. Ubuntu server wont boot after clean install with software. Reads nf and then passes the button to the windows boot loader. Whilst the new code handling the raid io still runs in the kernel, devicemapper is generally. My guess is that it all depends on the type of raid. I hope to address those here and provide an endtoend guide for myself and others wishing to do similar activities. But when it gets to install the grub boot loader part i get the following. Grub should be installed on another hard disk, so the system can still boot with the primary boot device removed. Apr 19, 2018 uefi should be able to boot whatever disk hasnt failed, and grubinstall will write to the raid mounted at bootefi. 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. Here we discuss how to configure and install grub and the basics of multibooting of dual booting with linux and windows using grub.
In trying to set this up, ive encountered several pitfalls and complexities. The problem is at the end of the installation, it tries to install grub. During the install, make sure grub is installed to the mbrgpt of the primary disk. Scroll up in the partition disks menu and select configure software raid. 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.
The above commands helped me fix this issue on centos 6. The settings will be saved, so the grub install can be refreshed automatically on package updates i guess its arguable whether thats a great idea, but it would make your system consistent with a nonbotched install. In this tutorial, youll learn how to install ubuntu server 16. After creating the physical partitions, you are ready to setup the boot, swap, and arrays with mdadm. And then yes, you install grubs bootloader on all your drives so the server can boot from any of them. Solved cant install grub2 on software raid installation. During my centos 7 install is where i performed the software raid1 configuration. Install ubuntu on raid 0 and uefigpt system github. So if you set up grub on the boot disk, and make the partition containing grub a raid1 device together with the second system disk with grub 1, run grubinstall once for each disk, then your system will still boot if either disk fails. The screen will prompt you to write changes to disks.
Windows 8 comes with everything you need to use software raid, while the linux package mdadm is listed. However, the last step, installing grub, always fails. I never do the default partition configuration so here is my setup used fdisk l. Re install grub devmd0 may be different for you depending on how you configured your software raid grub install devmd0. Regarding installing grub to the second drive, i find native grub installations i. If this is not completed you will need to have recovery media available to boot from. When asked to install bootloader, install to first device. On debian this is called a reserved bios boot area. Then add it back to the raid as you did before, starting from sfdisk d devsdb sfdisk devsda.
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