I personally used an ubuntu live cd to perform all of the following steps. Grub bootloader has powerful command line interface that can be used to solve boot problems. My problem turned out to be that i had guid partition table since my drives were 2tb each. R410 w software raid always boots to grub shell after. When the bootloaderstep is entered i selected grub2 each time i loaded a new raid install. Raid allows you to turn multiple physical hard drives into a single logical hard drive. Reboot and enjoy a fully functioning raid 1 install. This article describes how to setup a linux system that can boot directly from a software raid 1 device using grub. Install grub2 on usb and hdd from windows aio boot.
If the system partitions are on a software raid install grub 2 on all disks in the. Discussion in technical started by dipeshmehta, oct 18, 2010. Boot ubuntu iso from grub2, grub2 flash drive, grub2 ubuntu 9. Re install grub to all drives that make up the raid array. If your server is located in a remote area, the best practice may be to configure this to occur automatically. How to install linux os on usb drive and run it on any pc. Installing software raid mdamd on the appliance ihris wiki. How do i install grub on a raid system installation. Unfortunately, there is a known issue with hp proliants whereby when they have a usb device plugged in they will always try to boot from that usb device. I have a brand new installation that im trying to install grub2 onto 6 disks, in a linux software raid 5 array. Wizard step put super grub2 disk into an usb pendrive.
Grub boot files can be installed as a stand alone to any partition or drive independent of the linux os that grub is being installed from. I accidentally installed grub on usb flash drive during ubuntu server installation. Is this a limitation of grub2, or of the os installers. Today, lets talk about moving your linux install to linux software raid md raid mdadm. This worked well for bios booting since bios just transfers control blindly to the mbr of whatever disk it sees modulo finding a bootable partition flag, etc, etc. Install grub2 on usb from ubuntu linux pen drive linux. Setting up a bootable multidevice raid 1 using linux software. Proceed through the installer until you get to filesystem setup. Solved installing grub on a drive that contains an rsyncd. Grub isnt actually using it as raid1 when booting i. In these situations, i always use linux s md raid1 for the root filesystem andor boot. 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 grub install see invoking grub install as the superuser root.
How to boot from usb when grub is directly asking your. Jun 24, 2005 this condition is not fatal, and simply rebooting off of the install cd and re installing grub will do the trick. I spent some time yesterday building out a uefi server that didnt have onboard hardware raid for its system drives. At the end of the installation the installer asks to reboot. Sep 12, 2015 in case your next hdd wont boot then simply install grub to another drive. I am not positive that raid is the issue, but it is the only significant difference i can think of between this machine and others i have successfully installed mint on. I install mint just fine, but then when i reboot the machine goes right to vista, no grub menu.
So, during the install i noticed an option to do software raid and choose that route. Linux handles raid and syncs the two boot partitions. There do not seem to be any bios updates or anything else that can fix the issue. Raid 0 linux installation fails to install grub unix. In the following tutorial, ill show you one way to easily install grub2 to a usb flash drive from a running live ubuntu operating environment. The method i originally tried to follow didnt assume. Centos 7 install with uefi boot and software raid1. Grub vs grub2 bootloader learn the main difference. On some systems its grub2install instead of grubinstall. There are many raid levels such as raid 0, raid 1, raid 5, raid 10 etc. How to repair the grub bootloader using a ubuntu live usb. 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. If all goes well, you should now be booting into your grub2 prepared usb flash drive, with a grub2 boot menu option to boot from the ubuntu iso you copied to your usb in step 10. So you need to make sure that the proper lvm tools package is installed.
In this blog, we will check out how to install arch linux by setting software raid 1. It appears that the default install has deleted all partitions on the internal emmc drive and put mint on it. This command allows the user to modify the installation by setting the root directory, preload modules, run specific setup files and more. I have been setting up a two machines with software raid to use as xen virtual environments. Apr 19, 2018 uefi should be able to boot whatever disk hasnt failed, and grub install will write to the raid mounted at bootefi. 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. Home how to set up software raid1 on a running system incl. Openmediavault open, scalable management system for network storage device nas software based on debian linux.
How to repair, restore, or reinstall grub 2 with a ubuntu. No grub menu after mint install on dual boot with raid. First, install the software applications mtools and osprober. No info how to super grub2 disk into an usb pendrive as an iso image from gnu linux yet.
This means youll need to run grub install again if you replace one disk. It is capable of booting most windows, linux, bsd and macos operating systems. After some trynerr, i finally got to a way which works. Grub 2 typically gets overridden when you install windows or another operating system. Install ubuntu with software raid mdadm for the installation, im using the live server installer for ubuntu server 18. Installationsoftwareraid community help wiki ubuntu. The server has mdadm software raid 1 on 2 disks in the server, plus a usb disk plugged in for backups. I would think the correct partition to install grub2 on would be md0, but it fails to install, there. Solved cant install grub2 on software raid arch linux. Put the debian bootloader in bootefi and create an appropriate entry in the. Since grub uses a slightly different device mapper, lets use it to find the partitions.
Arch linux is a generalpurpose linux distribution for x8664 computers and is very popular among the intermediate and advanced linux users. Jul 29, 2014 insert the usb drive and boot the system. We can use full disks, or we can use same sized partitions on different sized drives. Since grub uses a slightly different device mapper, lets use it. If the system partitions are on a software raid install grub 2 on all disks in the raid. Download an iso image file of the red hat enterprise linux 6. On the next screen, type your machine disk device where the grub will be installed and press enter to continue, as shown in the below image. I created a boot partition that goes to md0p4, but it wont install there, either. In my case, i knew the root partition on the usb disk was devsda1, yours may vary. Nov 17, 2012 grub can be installed and executed from any type of device like hard disk, cd and usb. How to rescue, repair and reinstall grub boot loader in ubuntu. Installing openmediavault on a flash drive linux hub. To make ubuntu control the boot process, you need reinstall repairrestore grub using a ubuntu live cd.
As a friendly reminder to myself, in order to boot from a usb drive, i needed to update the hard drive order in the bios so that the usb mass storage drive was the first hard drive. I assume your talking about grub, and the answer is no. Software raid grub boot error on new xubuntu installation. Bootable software raid raid has always been something of a fascination for me. However i also have windows installed on a dynamic disk and everytime i boot into windows i first have to create the raid from scratch because somehow the mdadm superblock gets erased by windows any idea.
In the event of a failure you can boot fine off the second disk because it has an identical copy of the original boot partition. Install grub2 on usb from ubuntu linux published under flash drive installs using live cd. How to boot from usb when grub is directly asking your master. F6 other options select to disable dmraid esc choose to install ubuntuihris. Furthermore, using bios fakeraid is not recommended linux software raid mdraid will be more reliable. I found this by setting set roothd1,msdos2 which is the usb stick and then tabbing through on find.
In case your next hdd wont boot then simply install grub to another drive. Not long after learning about it, i purchased a hardware raid controller, an lsi megaraid 92608i, and a few hard drives to go with it. Next, you will be provided with rescue operations menu. When installing packages, make sure that you install lvm2, mdadm not raidtools, and grub. If the default hdd fails then raid will ask you to boot from a degraded disk. Now i want to install grub2 on usb stick and boot from it. Grub for software raid howtoforge linux howtos and. Run command prompt under admin and go to the grub2. At the beginning of the boot is the boot menu grub boot loader where you need to do. I installed linux mint cinnamon v19 from usb and am stuck with a new problem now. I have no raid as i prefer backups thru cdr and partimage.
Assuming this is a bios booting computer and not efi, and that you partition each individual disk and create a raid type partition and use those partitions to build the raid array, then you install grub to each of the individual disks in the array so that any one of them can boot the system using any n1 disks that are still present to access the array. In this tutorial, well be talking about raid, specifically we will set up software raid 1 on a running linux distribution. All i get is a no bootable devices message with options for f1, f2 or f5. You can easily install grub2 from windows with just a few commands. Jun 26, 2017 grub2 is a very powerful boot loader, developed by gnu. As it seems, the dell server is incapable of utilizing an alternate boot path in bios boot mode.
The easiest method i found was to use a usb drive to host the bootloader. When you get to grub, press c to get to the commandline option. Solved cant install grub2 on software raid my several installs of raid0 utilized grub 2 with no problems. Restart and boot from the spare usb stick containing the newly installed system step 5. If you use lvm for your boot, you can install grub on multiple physical disks. How to create a software raid 5 in linux mint ubuntu. Complete reinstall of grub 2 from live usb youtube. As this was only a test installation, i now want to install kubuntu on my surface. This is a form of software raid using special drivers, and it is not. However i also have windows installed on a dynamic disk and everytime i boot into windows i first have to create the raid from scratch because somehow the. When started, grub2 mainly presents a menu and waits for some input from users. When executed, grubinstall may run one or more other commands, such as grubprobe, grubmkimage, and grubsetup.
Gentoo linux x86 with software raid and lvm2 quick install guide. Includes software raid 0,1,5,6, email client, ssh, s ftp, cifs samba, nfs, daap media server, rsync, iscsi, bittorrentclient. After setting up your raid1 on boot, you have to install grub onto. In disk management is disk 2, we will remember number 2 here. Installing grub2 on ubuntu with software raid mirroring server fault. For more information on grub2, please refer to the gnu grub manual. Now i cant boot system without drive attached to server. My understanding is that grub1 doesnt know anything about raid and so cant boot off any kind of raid array except for raid arrays that look like a non raid array. Using the entire drive erase disk and install ubuntu. As ive found in researching this setup, uefi seems to be more extensible anyway so this worked out well. At the beginning of the boot is the boot menu grub boot loader where you. Grub configuration debian etch page 2 scan your webserver for malware with ispprotect now.
Nov 28, 2019 following this, there are also no guides on installing the grub bootloader to both gpt partitioned devices afterwards. Even if one of the disks in the raid array fails, the system can still boot. How to repair, restore, or reinstall grub 2 with a ubuntu live cd or usb. I installed manjaro linux kde version on my surface pro 4 device and used the standard encryption and the whole ssd is encrypted also boot. Check the number of hard disk you will install, be it usb or hdd. Open the software manager, search for mdadm, find the package and install. You may use mdadm for raid 56, which is supported by grub. Grub2 is a very powerful boot loader, developed by gnu. Installing grub on a drive that contains an rsyncd os from a raid. Actually i want just a single entry on my grub2 menu of usb stick menuentry tiny core 6. The only important thing is to install the bootloader in the spare usb drive as well.
I decided to run gentoo as the dom0 os because there is lots of good documentation for it and it has always been my favorite gnu. Ive heard rumors that grub2 is able to support boot on raid 0, raid 1 or raid 5, metadata 0. Grub isnt actually using it as raid 1 when booting i. Although grub is used widely in linux, grub can also boot windows operating systems as well. We just need to remember that the smallest of the hdds or partitions dictates the arrays capacity. Here, select the option to reinstall the grub boot loader and press enter key to continue. Following this, there are also no guides on installing the grub bootloader to both gpt partitioned devices afterwards. Software raid red hat enterprise linux 6 red hat customer portal. If the two disks are devsda and devsdb, run both grubinstall devsda and grubinstall devsdb. From the install window, choose the try ubuntu option to open an ubuntu live session. Just to come to the grub loader and it coudlnt find any operating system. The grub bootloader will be configured in such a way th. May 25, 2019 run mdadm create verbose devmd0 level1 raid devices2 devsda devsdb run the graphical installer tryng to install ubuntu on devmd0 i tried at work with a physical workstation and the installer t asked me to create a small biosboot partition, because of the gpt disk that was not asked to do it in my vm test on vmware workstation.
How to set up software raid1 on a running system incl. This video tutorial will show you how you can use an. Setting up raid on an existing debianubuntu installation. Mar 06, 2015 the command to change the grub 2 installation device or boot files is grubinstall run as root. This guide explains how to set up software raid1 on an already running mandriva 2008. The red hat customer portal delivers the knowledge, expertise, and guidance available through your red hat subscription. Trying to install ubuntu server on a hardware raid 1 array instead of the native linux software raid.
Hi, i was reloading my linux box from scratch recently and decided to try software raid 0 since i have two identical 75gb drives and figured this would provide a nice boost in readwrite speeds. Setting up a bootable multidevice raid 1 using linux. When it is finished, you have to boot your server up using that usb. Furthermore, using bios fakeraid is not recommended linux software raid mdraid will be more reliable, and will help you to avoid issues like this. Proceed through the installer until you get to filesystem. Capabilities can be extended using plugins available through the repository. First live boot to your linux mint system, using external live cd usb drive, then follow these commands to re install grub on mbr. Grub2 is considered as default boot loader of ubuntu whereas grub is generally used in rhel older versions. To reinstall grub, you need either a live cdusb to access your. Grub2installing community help wiki ubuntu documentation. Installation of arch linux using software raid serveradminz. How to set up software raid 1 on an existing linux. Booting with software raid almost always requires a separate boot partition.
1301 50 1258 178 1449 1229 245 363 9 1186 1427 1164 355 1145 1019 1344 1385 1133 764 1102 1534 1006 1451 964 1117 1484 1364 1242 1387 1478 318 261 931