Does grub2 really support putting boot on a software raid5 partition. Actually this works in debian squeeze and has for over a year. Whilst the new code handling the raid io still runs in the kernel, devicemapper is generally. However, since then lots more uefionly x86 machines were produced so we enabled it. 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. However, the mdadm tool is a single that is much more powerful. Uefi should be able to boot whatever disk hasnt failed, and grub install will write to the raid mounted at bootefi. Mar 27, 2019 im afraid what youve found is not a grub bug at all.
Installing grub2 on mdadm software raid in debian wheezy. Installing grub2 with boot on software raid, wesley pa4wdh, 20703. Installing grub2 on gnulinux software raid sinodun internet. There were override disparities found in suite unstable. We will create a software raid 10 setup, with lvm and luks full disk encryption. For more information on a variety of grub 2 topics, please visit the grub2 main page. Changed system type of partition 1 to fd linux raid autodetect. Most arm machines armhf use uboot or other options like fastboot for their firmware, but some machines can run edk2 as well directly.
Debian includes this firmware in the qemuefiarm package. A real scenario just needs to provide a raid 1 devmd0 that can be of any size provided it is enough hold the linux installation and composed of any software raid 1 partitions each partition in the array should reside on a different physical disk, possibly connect to different ide channels, to achieve maximum fault tolerance. I like to setup grub2 on a gpt softare raid 3 tb hdd. How to configure software raid1 during installation process. Grub vs grub2 bootloader learn the main difference. Nov 15, 2011 software raid 5 in ubuntu debian with mdadm 9 min read. The information applies to most versions of grub 2, but is specifically written for version 1. This guide explains how to set up software raid1 on an already running lvm system debian squeeze. Number start sector end sector size code name 1 2048 1050623 512. Setting up raid on an existing debianubuntu installation. Installing a software raid 10 debian system with luks disk. Uefi should be able to boot whatever disk hasnt failed, and grubinstall will write to the raid mounted at bootefi. 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.
Feeding the cloud posts setting up raid on an existing debian ubuntu. Install debian 8 on a lvm volume with type raid1 grub2 cant. This page details the procedures for installing and reinstalling grub 2. Grub2 configuration debian squeeze how to set up software raid1 on a running system incl. 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. Does grub2 really support putting boot on a software raid1 partition with 1. Installing gentoo with grub2, gpt, luks and software raid. By default it tries my first disk, which gives a fatal error. Apr 28, 2016 installing grub2 on mdadm software raid in debian wheezyjessie principle. Debian base system master password and group files. May 30, 20 installing gentoo with grub2, gpt, luks and software raid mdraidmdadm recent comments. I have been setting up a two machines with software raid to use as xen virtual environments.
When typical stuff like grubinstall from a rescue console doesnt work. Nov 07, 2014 raid mdadm software raid issues with grub. What you should do is install grub to the raid array, eg devmd0. In this guide we will be installing debian 9 aka stretch on a physical server with 4 disks. I have a brand new installation that im trying to install grub2 onto 6 disks, in a linux software raid 5 array. Installing grub2 on mdadm software raid in debian wheezyjessie. 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. Reading around i found that debian is able to boot from raid 1. Install debian 8 on a lvm volume with type raid1 grub2 cant find volume group. Raid 5 requires a minimum of 3 drives, and all should be the same size. Not to be confused with the linux kernels software raid feature multidisk device. Mar 06, 2015 this page details the procedures for installing and reinstalling grub 2. Installing grub2 with boot on software raid, andrey borzenkov, 20701. Nov 17, 2012 grub uses physical and logical addresses to address the disk, it cant even read from new paritions whereas, grub2 uses uuid to identify a disk thus is more reliable.
Apr 19, 2018 now we have a visible fat32 filesystem on the esp. 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. Grub2 has the ability to assemble raid arrays and read from them. Up to know i spent several hours and collect only failures. Software raid 5 in ubuntudebian with mdadm zack reed. In my setup, i have two disks that are each formatted in the following way. How to set up software raid1 on a running system incl. The best way to ensure that grub2, the default bootloader in debian and. When installing via vnc it can occur that the installer uses other metadata versions. This is a known limitation, and there isnt any way to fix this at the moment.
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. As far as i understand the guide gentoo linux x86 with software raid and lvm2 quick install guide does not use grub2 and i think i do not need lvm2. Well windows boot loader will not allow other os to load except for windows can be any version so you need to have grub besides you can learn more here s. 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. Debian user forums view topic solved cannot make grub2.
An ideal answer would link to a tutorial that explains how to move a boot partition on a non raid partition to a raid5 partition. Changed bug title to add news item about endoflife for old raid format from grubpc grub2 2. This version of grub is based on a cleaner design than its predecessors, and provides the following new features. I have exactly the same problem on debian unstable. 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 you are using raid 1, you can preseed grub to install to all devices used in the array. The problem is at the end of the installation, it tries to install grub. And my final step will be to write a small grub2 raid. Servers preinstalled by hetzner are configured with raid superblocks version 1. The role of this machice is to be used as a storagenas system. How to install debian with windows already installed. I want to use grub2 as boot loader, but i read that is needed to be created a bios boot partition. Grub2 configuration debian squeeze page 2 4 creating our raid arrays.
Im trying to setup and install ubuntu on a raid 1 setup. How do i install grub on a raid system installation. How to set up software raid1 on a running lvm system incl. Mar 22, 2010 grub2 and software raid1 insmod linux. The package is severely out of date with respect to the debian policy. Again, edk2 is also a good option for firmware for 32bit arm vms. Installing grub2 with boot on software raid, wesley pa4wdh, 20706. This is the preferable and more reliable method to establish. Installing grub2 on mdadm software raid in debian wheezyjessie principle. This page contains some screenshots to demonstrate it, and applies to debian 5. In this tutorial im using a debian squeeze system with two hard drives, devsda and devsdb.
Playing around on my labrat i realized that sometimes elcentos 6. Debian software packages in bullseye, subsection admin. This guide explains how to set up software raid1 on an already running debian squeeze system. Installing grub2 with boot on software raid, wesley pa4wdh, 20705. In my testing, lilo absolutely refused to be installed on a raid1 array. Jun 24, 2005 most users who are familiar with linux software raid are also familiar with raidtools. My question is will installer, grub2 and squeeze handle synchronization of.
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