Questions tagged [raid]

RAID stands for redundant array of independent disks, and allows for disks to be linked in various ways. Common RAID setups in Ubuntu are a hardware RAID, FakeRAID and software RAID.

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Workaround to Install Ubuntu 20.04 with Intel RST systems

I tried to install Ubuntu 20.04 in my Dell G5 which has 2 drives. One with Windows 10 on it (256 GB) and another one with 1 TB capacity. I shrunk the volume of 1 TB by 150 GB and tried to install ...
SubinR's user avatar
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27 votes
2 answers
38k views

How to install Ubuntu 14.04/16.04 64-bit with a dual-boot RAID 1 partition on an UEFI/GPT system?

Update: Question and answer below also applies to Ubuntu 16.04 I have a computer with dual SSDs and Win (7) pre-installed on another disk. The pre-installation uses (U)EFI/GPT boot. I want to install ...
Niclas Börlin's user avatar
30 votes
1 answer
50k views

Install dual boot ubuntu with windows 10 and RAID on

I have a dell XP’s 9560 laptop and I want to install an Ubuntu distribution alongside windows 10. I tried a lot so far to install it but I can’t see any partitions. I figured out that the problem is ...
Dorin's user avatar
  • 403
7 votes
1 answer
17k views

Dual-Boot Ubuntu 14.04 and Windows 7 on FakeRAID Installation error - question marks "????..."

I am trying to install Ubuntu 14.04 on FakeRAID along Win7. Win 7 has been already installed, and dmraid is running. During the installation I choose to manually partition, this is the structure: \...
Dean's user avatar
  • 813
44 votes
4 answers
193k views

How do I install GRUB on a RAID system installation?

I'm trying to setup and install Ubuntu on a RAID 1 setup. I have two disks, sdb and sdc. I've been following this guide https://help.ubuntu.com/community/Installation/SoftwareRAID which more or less ...
Kris Harper's user avatar
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14 votes
2 answers
71k views

Install Ubuntu 18.04 desktop with RAID 1 and LVM on machine with UEFI BIOS

I have a machine with UEFI BIOS. I want to install Ubuntu 18.04, desktop version with RAID 1 (and LVM) so my system will continue to work even if one of the drives fail. I haven't found a HOWTO of how ...
Niclas Börlin's user avatar
12 votes
4 answers
50k views

Install Ubuntu 20.04 Focal Fossa with RAID 1 on two devices

I would like to install Ubuntu 20.04 Focal Fossa on a machine with two hard disks using RAID 1. Unfortunately it seems this doesn't work. If I use the "Create Software RAID (md)" option and select ...
wedi's user avatar
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11 votes
4 answers
37k views

Ubuntu 12.04 installer does not see Windows already installed on my computer [closed]

When I just tried to install Ubuntu 12.4 alongside Windows 7 on my new "HP Pavilion 64k desktop with Windows 7" computer, Ubuntu said this computer has no detected operating system and someone ...
2 votes
1 answer
2k views

Installing Ubuntu 18.04 alongside windows10, the SSD is not recognized

I have DELL Precision, with 512GB SSD. I did shrink the only Drive C, and made 125 GB of unallocated space to install Ubuntu on it. restarting the system choosing boot, install Ubuntu, the ...
Amir-Mousavi's user avatar
26 votes
4 answers
65k views

How can I use Kernel 3.19 in 14.04 now?

So I'm rebuilding my storage server. For stability, I want to use Ubuntu server 14.04 LTS as the OS. However, I'm planning to use Btrfs with RAID 5, and this has been greatly improved in kernel 3.19. ...
Degenerate's user avatar
15 votes
3 answers
56k views

How to install Ubuntu server with UEFI and RAID1 + LVM

I used to install my servers with LVM over software RAID1, and grub install on the MBR of both drives. Now I have an UEFI server, and the compatibility (BIOS) mode does not seem to work. So I went ...
alci's user avatar
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7 votes
4 answers
26k views

Install Ubuntu 20.04 desktop with RAID 1 and LVM on machine with UEFI BIOS

I have a machine with UEFI BIOS. I want to install Ubuntu 20.04 desktop with LVM on top of RAID 1, so my system will continue to work even if one of the drives fail. I haven't found a HOWTO for that. ...
Niclas Börlin's user avatar
8 votes
3 answers
99k views

MDADM Superblock Recovery

After a power cycle I found my RAID 5 Array no longer working. I tried various methods to reassemble the array but nothing has worked so far. I believe I need to recreate the superblocks and UUIDs ...
Teque5's user avatar
  • 299
3 votes
1 answer
3k views

Converting a physical Linux Machine to use in VMWare

Linux newbie here. I am connecting to the machine from a Mac via SSH. Would someone be able to tell me the best process for converting the already running Linux machine to a Virtual machine to be used ...
Aaron Kane's user avatar
19 votes
3 answers
57k views

How to Install Ubuntu 14.04 with RAID 1 using desktop installer?

Many people claim that it is impossible to install Ubuntu onto RAID 1 with the Desktop CD. Is this really true? If not, how can it be done?
Sunday's user avatar
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8 votes
3 answers
28k views

Error unknown command hwmatch [closed]

I'm getting "unknown command hwmatch" message on each boot after I installed Ubuntu 16.04 following this steps: https://gist.github.com/umpirsky/6ee1f870e759815333c8 in order to setup RAID0. Special ...
umpirsky's user avatar
  • 4,050
5 votes
2 answers
14k views

Setting Up RAID During 13.04 Install

I am attempting to install Ubuntu 13.04 Desktop on RAID 5, but I can't figure out how to do it. I have read that it can be done during the install, though I haven't found a good explanation of how ...
DogLover's user avatar
16 votes
1 answer
34k views

Setting up RAID 1 on 14.04 with an existing drive

I have a currently installed Seagate ST3000DM001 (about 90% full) and a new Seagate ST3000DM001 (blank). I would like to setup RAID 1 without losing the data on my currently installed drive. If I ...
Shayne's user avatar
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96 votes
5 answers
178k views

How can I quickly copy a GPT partition scheme from one hard drive to another?

On a non GPT partition table I can do sfdisk -d /dev/sda | sfdisk /dev/sdb. But sfdisk doesn't support GPT partition tables. What can I use instead? I'm looking for a one or two command solution, ...
Kris Harper's user avatar
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34 votes
3 answers
46k views

The initramfs will attempt to resume from /dev/dm-1

I'm setting up a new Ubuntu 18.04 server and have already played through one backup/restore loop. So the entire system has been restored from backup with a fresh RAID and LVM volumes. Now recently, ...
ygoe's user avatar
  • 988
15 votes
3 answers
26k views

How do I properly access Windows software RAID 0?

I am a new Ubuntu user with a fresh installation, and am eager to get started with it. However, all of my important data is on Windows software RAID 0 array, and I need it to stay there as I'm also ...
Dan's user avatar
  • 541
8 votes
2 answers
9k views

How to set up RAID 1?

How to set up RAID 1 (software, hardware or fake) on Ubuntu 12.04 desktop?
Gustavo's user avatar
  • 101
4 votes
2 answers
25k views

RAID set up in Ubuntu 18.04

I am trying to setup one of my servers with Ubuntu 18.04 server edition. When trying to do disk partitioning it does not allow me to choose Software RAID configuration (That open does not exist at all)...
knightrider's user avatar
1 vote
2 answers
3k views

Server stuck at black screen after reboot

I recently put together a new server running Ubuntu Server 11.10 and it's all working great except for one little detail. Whenever I run "sudo reboot" everything works fine until I get to the grub ...
Jonathan's user avatar
  • 141
0 votes
1 answer
3k views

Problem while changing the SATA mode to AHCI

I recently bought a new laptop, an Acer Nitro 5, the latest model with 10th Generation Intel i7 processor, and an Nvidia GTX card (normal drill). I had encountered a problem where Ubuntu gives me the ...
Som V. Tambe's user avatar
20 votes
4 answers
67k views

How do I align my partition table properly?

I am in the process of building my first RAID5 array. I've used mdadm to create the following set up: root@bondigas:~# mdadm --detail /dev/md1 /dev/md1: Version : 00.90 Creation Time : Wed ...
Jorge Castro's user avatar
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14 votes
3 answers
38k views

Put HDDs in standby after X minutes using hdparm doesn't work

I use Ubuntu 12.04 on a home server. There are 5 hard drives: one SSD with the OS and 4 HDDs (Samsung HD204UI) configured as a RAID5 using mdadm. I don't need the RAID very often (say, about once per ...
leemes's user avatar
  • 931
14 votes
7 answers
39k views

Is having the 'swap' partition at the 'beginning' better than at the 'end'?

I recently installed Ubuntu 11.04 onto a RAID0(stripe) device using the alternate installation disc and manually partitioned the HDs ext4 and swap partitions; during this process, I was reading in a ...
SaultDon's user avatar
  • 1,722
11 votes
6 answers
21k views

How do I automount a fake raid?

Hardware Asus K8N4-E Deluxe Mobo Sil 3114 fake raid, onboard 2 Seagate 250 gb hd, hosting my /home A backup on a separate hard disk of /home What I have so far I've made the raid using the Sil 3114 ...
djeikyb's user avatar
  • 30.2k
10 votes
2 answers
21k views

How to set up SSD raid and TRIM support?

I am looking to set up a new server. I can only use Intel 520 Series 240gb MLC ssds or standard Seagate 7200rpm disks. These are the non negotiable options. Naturally, as this is going to be running ...
Steed's user avatar
  • 101
10 votes
1 answer
28k views

How can I create a RAID array with >2TB disks?

I would like to know the correct way to set up a software RAID array on an existing server. I have two brand new 3TB disks to use for the array. Specifically, I want to set up a 3TB RAID 1 array, ...
David Edwards's user avatar
8 votes
1 answer
20k views

Not enough components to start the RAID array?

I'm trying to retrieve data from a "Western Digital MyBook World Edition (white light)" NAS device. This is basically an embedded Linux box with a 1TB HDD in it formatted in ext3. It stopped booting ...
urig's user avatar
  • 223
5 votes
5 answers
13k views

raid advice with SSD and two HDD

I have a new machine with one 128GB SSD and two 1TB HDD. On the SSD is the OS and my initial thought was to put the two HDD in RAID 1 for user data. After some more thought I came up with two other ...
Nin's user avatar
  • 791
5 votes
1 answer
12k views

How to determine device name for NMVe SSDs during install

I'm in the beginning of installing 16.04 Ubuntu flavor to rig. I'll use two NMVe SSDs in a RAID0 config. I have all of the commands lined up, I just miss one crucial bit: the actual device name of the ...
Csaba Toth's user avatar
  • 1,378
4 votes
2 answers
5k views

Installing Ubuntu with Fake RAID 1

I had: Software: Dual boot with Windows XP Ubuntu 10.04 LTS x32 Hardware Fake RAID 1 (mirroring) with 2x1 TB: Partition 1 - Windows Partition 2 - SWAP Partition 3 - / (root) Partition 4 - ...
Arkadius's user avatar
4 votes
0 answers
20k views

A Guide to Install Ubuntu 13.04 using a RAID 0

Getting the error: Unable to install grub in /dev/sda? Because you are using a BIOS/fakeRAID0? If you manage to find this thread consider yourself in luck. I spent the last 48 hours trying to figure ...
CrashFive's user avatar
4 votes
1 answer
15k views

remove mdadm raid1 without loosing data

I have 2 hdd's in raid1 using mdadm. Now i want to completely disable raid but i want to keep data on disk 1, and use disk 2 separately Is there a way to do this. Ill be honest, i know what raid is,...
pedja's user avatar
  • 151
3 votes
2 answers
1k views

server installation with intentionally incomplete raid1

I'm upgrading a current 16.04 server to 18.04. The / and /boot partitions are mirrored (simple mdadm). To avoid the risk of a failed installation, I broke (--fail then --remove) the mirror and am ...
r2evans's user avatar
  • 191
3 votes
1 answer
3k views

NVMe disk configured in RAID0 unable to install Ubuntu 16.04

I've tried to install Ubuntu 16.04 on my Asus ROG G752VY in dual boot with windows 10. The problem is that Asus ROG G752VY has a PCI Express SSD configured in RAID0 and Ubuntu is not able to see it. ...
Cereal Killer's user avatar
2 votes
3 answers
1k views

Can I install ubuntu 14.04 on my RAIDed desktop?

I think I heard that RAID was removed from the Ubuntu installer recently. My system is currently made up of a series of RAID1 arrays: one for 12.04, with /home mounted on a separate partition/array. ...
artfulrobot's user avatar
  • 8,523
2 votes
1 answer
1k views

Ubuntu 13.04 Server Installation With no RAID option?

I'm installing Ubuntu 13.04 Server. When I get to the partition manager, I select Manual. When I click on one of my disks that I want to use as a RAID partition, the option doesn't exist. Can you not ...
makoReactor's user avatar
1 vote
5 answers
10k views

Why isn't md raid assembled after reboot?

I'm trying to get an Intel RAID setup. The problem I have is that after a reboot the raid is not available. These are the steps I go through to setup the Intel RAID using the mdadm command. I've ...
mikelanc's user avatar
1 vote
1 answer
3k views

Installer Only Recognizes 801GB of a 3TB RAID1 Array

I've been searching as best I can for this precise problem, but the only place I found it exactly was here, and I don't think that the OP ever got an adequate answer. Most of the issues I've seen ...
Brian Bauman's user avatar
1 vote
1 answer
474 views

How to move available space from / (root) to /home? (Ubuntu server 18:04 LTS)

I just got a new ubuntu 18.04 server with two hard drives of 4TB each, with RAID. Ubuntu was set up automatically on it. Looking at it now, I see this: root@host ~ # lsblk NAME MAJ:MIN RM SIZE RO ...
Lex Thoonen's user avatar
0 votes
2 answers
9k views

Add two new HDD in Raid 1

I just made a fresh install of Ubuntu 12.10 on a new SSD (/dev/sda). Now I would like to add two 1TB drives (/dev/sdb /dev/sdc) in RAID 1 but I'm pretty clueless on how to do it. This is what I came ...
Nin's user avatar
  • 791
0 votes
2 answers
6k views

How do I recover my RAID partition after the Ubuntu 11.04 upgrade?

My RAID drive was working well with Ubuntu 10.10, but after doing an upgrade I am no longer able to mount my RAID drive. I think it is due to a invalid RAID description similar to this problem: http://...
Paul's user avatar
  • 167
0 votes
1 answer
680 views

Cant install Ubuntu alongside Windows 7 on HP 650 - Cant recognize Windows partition

I have a notebook HP 650 and I removed Windows 8 to install Windows 7. I have disabled Secureboot and installed Win7 successfully. When I boot Ubuntu live cd, the installation manager is unable to ...
Giannis's user avatar
  • 476
0 votes
1 answer
1k views

Dual boot Ubuntu with Windows: cannot change from RAID to AHCI through BIOS

I recently got a new laptop HP Envy (Model: 15M-ED0023DX). Its full SSD machine and I want to the change the SATA from RAID to AHCI so that I could see the partitions when I boot from pendrive (Ubuntu)...
Sumedh Pendurkar's user avatar
17 votes
2 answers
34k views

RAID (mdadm) - What happens if drives are mismatched in size?

Question 1 - Before you answer with "it just takes the smaller disk", hear me out quick. My 3TB WD Reds come out to be 3001 GB in size. Let's say I set up a mirror via mdadm for sdb1 and sdc1 which ...
JaSauders's user avatar
  • 557
17 votes
6 answers
43k views

How do I know what physical drives/partitions are behind my /dev/mapper/isw_dghbbcaabe_RAID_Volume11?

This is a just upgraded Ubuntu 10.04.1 LTS machine. The /dev/mapper/isw_dghbbcaabe_RAID_Volume11 is "new" to the upgrade but I don't know what physical drives/partitions are included in the "device". ...
Sebas's user avatar
  • 173