Even if one of the disks in the raid array fails, the system can still boot. 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 raid instead. Enjoy debian with the raid set up for both boot and data such that even if one disk crashes you will be able to restore your configuration do not forget to give to your new disk partitions identical to the old disk and to copy grub to the boot partition if necessary. Installing a software raid 10 debian system with luks disk. Stage 2 is then the full grub, with the menu, the config file and so on. I want to use grub2 as boot loader, but i read that is needed to be created a bios boot partition.
Type the following command under debian ubuntu linux. My question is will installer, grub2 and squeeze handle synchronization of. I tried out with the resuce mode using the debian cd 1. When asked to install bootloader, install to first device. To install grub 2 on both mirrored drives in raid 1 configuration on debian 6 squeeze, type this. 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.
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. The key to success appears to be the correct installation of grub into efi. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with. Regarding installing grub to the second drive, i find native grub installations i. Apr 19, 2018 now we have a visible fat32 filesystem on the esp. Installing a software raid 10 debian system with luks disk encryption february 3, 2018 by theodotos andreou 10 comments in this guide we will be installing debian 9 aka stretch on a physical server with 4 disks. We are now ready to configure ubuntu software raid. This means youll need to run grubinstall again if you replace one disk.
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. Installing grub2 on mdadm software raid in debian wheezy. Sep 26, 2017 how to install and configure debian 9. This will prevent the operating system from crashing should a drive fail. Apr 28, 20 having the lvm in a different raid device is the most important part i guess. 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. New server, sata disks, the hardware raid controller is not really supported. For a normal installation of debian or ubuntu, you can refer to. 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. 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. Jan 14, 2010 software raid on debian linux 14 january 2010 on hardware, filesystem, mdadm, monitoring, raid, linux. How do i create software raid 1 arrays on linux systems without using gui tools or installer options. So the goal of this howto is to put the partition table, and boot, root, and swap partitions on bootable raid1 mirror device.
To setup raid 10, we need at least 4 number of disks. My guess is that it all depends on the type of raid. So we decided to use a software raid 1 for the two disks. 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.
We cover how to start, stop, or remove raid arrays, how to find information about both the raid device and the underlying storage components, and how to adjust the. Debian user forums view topic solved squeeze, grub2. For a normal installation of debian or ubuntu, you can refer to the links below for initial steps until the hard disk partitioning. Linux create software raid 1 mirror array nixcraft.
Im trying to setup and install ubuntu on a raid 1 setup. Search in access database datagridview bindingsource filter part 1 2 duration. 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. 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. Im afraid what youve found is not a grub bug at all.
If you stop the boot at the grub selection menu, then you can get a grub prompt c and manually set up. Here we will use both raid 0 and raid 1 to perform a raid 10 setup with minimum of 4 drives. Software raid on debian linux 14 january 2010 on hardware, filesystem, mdadm, monitoring, raid, linux. Nov 19, 2010 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 raid instead. Raid 10 is a combine of raid 0 and raid 1 to form a raid 10. Our team at linuxforce recently put together a debian server with lvm on a software raid5 volume. Installing a software raid 10 debian system with luks disk encryption february 3, 2018 by theodotos andreou 10 comments in this guide we will be installing debian 9 aka stretch on a. After first boot, consider executing dpkgreconfigure grubpc or dpkgreconfigure grubefiamd64 on efi systems, and install to all devices. Now that we have created the same partition layout on both disks we need to configure software raid1 so that the data on both partitions is mirrored. This article describes how to setup a linux system that can boot directly from a software raid1 device using grub. After first boot, consider executing dpkgreconfigure grub pc or dpkgreconfigure grub efiamd64 on efi systems, and install to all devices. This guide explains how to set up software raid1 on an already running debian squeeze system. Today i will share some thought on software raid under linux with you. Sometimes you need to store data relative save and high available.
Once logged in its possible to verify the system actually booted from the raid1 array. How do i install grub on a raid system installation. Howto create software raid 1 mirror on debian linux a raid1 array on linux is fairly straightforward to setup. If one uses this new feature, then all data on the drive is mirrored at all times. 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. Nov 30, 2006 new server, sata disks, the hardware raid controller is not really supported. 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. To allow booting from other disk in the array grub must be manually installed to each disk with the grubinstall command. However, since then lots more uefionly x86 machines were produced so we enabled it.
Install debian etch on a software raid 1 with sata disks. The setup went fine, but i could not boot from grub. If you have 2 x 500 gb hdd then total space become 1 tb. 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. How to set up software raid1 on a running system incl. 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. Setting up raid on an existing debianubuntu installation. Once logged in its possible to verify the system actually booted from the raid 1 array. Also made changes in nf, but the system unable to boot successfully, during booting process it asks about file system check on md0, i used e2fsck command but there is no. How to configure software raid1 during installation process.
Debian software packages in buster, subsection admin. To allow booting from other disk in the array grub must be manually installed to each disk with the grub install command. Jun 07, 2016 how to install linux ubuntu server 16. So the goal of this howto is to put the partition table, and boot, root, and swap partitions on bootable raid 1 mirror device.
Software packages in buster, subsection admin 0install. This is because the mbr and gpt boottime code for grub is different. Running ubuntu on a fakeraid1 array described how to adapt the original howto to a raid1 mirroring array. The problem is at the end of the installation, it tries to install grub. As it turned out, this process was simpler then i initially expected. The debian installer installs grub just to the first disk devsda. Mar 27, 2019 im afraid what youve found is not a grub bug at all. I am attempting to install debian using the software raid raid 1. This guide explains how to set up software raid1 on an already running debian etch system. Debian user forums view topic solved squeeze, grub2 and. This is a known limitation, and there isnt any way to fix this at the moment.
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