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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Installing Ubuntu 14.04 on Asus Zenbook (RAID)

This machine have 2 128 GB SSD drives (http://www.amazon.com/dp/B00EPGHE0E/ref=twister_B00JYFOKKS). I managed to install Ubuntu with no problems on one SSD drive, but I am having following troubles ...
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Problem with full partition on / and raid

I'm in sort of bug with my root partition taking 100% I try to mount the / partition on a new folder /tmp/2ndRoot/ to make a correct du without /home and other folder mounted, and it seems the system ...
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121 views

btrfs two Data sections and enospc error when trying to convert

I currently have a btrfs filesystem setup on an ubuntu 14.04 setup like this: # btrfs fi df /storage/ Data, RAID1: total=2.33TiB, used=2.32TiB Data, RAID0: total=2.00GiB, used=2.00GiB System, RAID1: ...
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2k views

How to re-add accidentally removed hard drive in RAID5

I have a NAS on Ubuntu Server with 4 2TB hard drives in RAID 5. A couple of weeks ago, one of the hard drives died, but my RAID was working, although degraded. Luckily it was still under warranty and ...
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246 views

lvm disappeared after disc replacement on raid10

here my problem: I am running ubuntu 12.04 on a raid10 (4 disks), on top of which I installed an lvm with two volume groups (one for /, one for /home). The layout of the disks are as follows: Disk ...
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212 views

RAID1 “conflicting device node” message on startup

I'm dual booting Win8.1 and Ubuntu 14.04 (Gnome Classic). I have RAID1 set up (on Asus Z87-A motherboard) with Win partition, Ubuntu partition, and NTFS partition for data. On Ubuntu startup, I see ...
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30 views

How to remove encryption from volume during installation

I'm currently in the process of installing Ubuntu Server 12.04 onto a fresh build. I have two 3TB hard drives that I'd like to run in software RAID 1, and was following this tutorial. During ...
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469 views

Ubuntu 12.04 and Windows 7 dual boot on ssd + hdd raid1

Despite reading dozens of HowTos and so on I am getting crazy about trying to get my dual boot system running. Maybe you can help me. My system: Asus Z87-pro motherboard with UEFI Samsung 840 Pro ...
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9k 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 ...
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142 views

problem booting with failed software RAID 1

I have been experimenting with a software RAID 1 installation of ubuntu 12.04 LTS in virtualbox, but am having some issues here. What I basically did: 2 disks in RAID 1. Both disks contain a ...
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76 views

RAID 5 array mdadm add command no response

On ubuntu server, I have a software RAID 5 array, four 2TB drives. One of the drives died, I sent it in and got a replacement. I put the replacement in my server, used an sfdisk command to set the ...
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39 views

Strange RAID disk volume usage

I have Ubuntu Server 12.04, and my disk is full. I don't know why; my files don't use more than 5GB. Filesystem Size Used Avail Use% Mounted on ...
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47 views

I grew an array with mdadm but I can't see the progress?

Today I added a 5th drive in my array, I did the following: mdadm --add /dev/md0 /dev/sdf1 My drive was added as a spare, I then did: mdadm --grow /dev/md0 --raid-devices=5 But when I want to ...
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155 views

Will Ubuntu spin down harddrives in an RAID 10 array?

I'm about to buy parts for a new home server and I'm planning on using Ubuntu(perhaps 12.04 LTS) For the OS, I'll use an SSD. For cold storage(big files, rarely accessed), I'm planning on setting up ...
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1k views

Installing 12.04LTS Server on a Fake RAID10

Scenario Install Ubuntu 12.04LTS Server on a RAID10 with boot on a RAID1. 4 - 2Tb SATA Hard Drives 3 Partitions (/boot, /, and swap) boot (256Mb from each disk) setup in RAID1 /dev/md0 partition ...
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197 views

How to choose LVM mapping mode when installing Ubuntu server 12.04?

I would like to create a volume group with striped mode on top of 2 RAID-1 devices. The issue here is I cannot choose striped when configuring LVM at installation stage. It's always be linear.
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400 views

Fixing broken raid0 with dmraid?

A while ago when I was still on Windows I had two secondary 1 TB hard drives that used a raid0 setup, fakeraid I believe with Intel. My primary hard drive died which seemed to have messed up the raid ...
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236 views

How do I mount disks with an Adaptec RAID controller on a dual-boot machine? (error code 12)

I'm trying to migrate from Windows to Ubuntu 12.04, dual-booting at the moment. One problem I am facing is the RAID controller, I'm not able to mount any of the drives connected to it. (The OS is up ...
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655 views

12.04 does not boot from the disk after installation

Installed Ubuntu on HP xw4600 workstation using CD not USB. But after installation it does not boot from hard drive. During installation it showed: The entire disk will be used: ...
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14.04 - Replaced drive in Software RAID 1 - How to make bootable?

I have an Ubuntu 14.04 x64 server with 2 500GB drives (sda and sdb) in a software RAID 1. I just had to replace sdb. Adding it back to the array with mdadm and resyncing was a snap. The problem I'm ...
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How to re-create the partition table?

I accidentally dd the first 512 bytes using dd if=/dev/zero of=/dev/sdb bs=512 count=1 and the partition table is now gone. Is there ANY way to re-create the partition table(/dev/sdb). My hard ...
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42 views

Raid Won't Mount After Reboot

I'm building a new Ubuntu 14.04 server with RAID. I partitioned the operating system and swap partition on a small harddrive and have the RAID strictly for files. After adding a new disc to the RAID, ...
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windows non-boot raid

I'm thinking about installing Ubuntu on a Windows machine for dual boot. There are three Windows drives c: and d: are independent and g: is a RAID (0/1 I think). What do I need to do to get the RAID ...
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54 views

Explain on how to setup a JBOD Ubuntu Server?

I have 3 hard drives. Two hard drives are SATA and one is IDE. C:\ - 300 GB SATA Hard Drive D:\ - 80 GB IDE hard drive. And third disk is not installed, assume as if it was. How do I merge all three ...
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Incorrectly detected fakeraid destroyed data during install

I have attempted to install ubuntu 14.04 on my PC in parallel (dual boot) with windows XP. My PC has 2 SATA disks, one was more-less devoted to the system, second one to data. However, when running ...
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20 views

Ubuntu RAID failure [get a warning]

Okay I might sound paranoid, but every day I think that my harddrives in both my servers failed for some reason and I am going to lose all my data. I have a server with a RAID 5 installation with ...
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175 views

Ubuntu 14.04 install on hardware with RAID

I've just built a new machine using an ASUS Mobo with 8GB of RAM and set up RAID 10 with 4 new HDD. I want to install Ubuntu 14.04 on it and so far have tried to do so 3 times with no luck. The ...
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60 views

RAID6 will not reassemble with 2 failed disks

Relevant photo album Hello all. I have a file server running ubuntu 12.04 (See first picture) with 6x Seagate 3TB HDDs in a RAID 6 configuration (giving 12TB of storage). This is a software RAID, ...
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948 views

Ubuntu 14.04 Manual Hard Drive Partitioning Help Needed

I'm in need of some assistance with manual partitioning from the Ubuntu 14.04 install GUI. I'm trying to do a fresh install of Ubuntu 14.04 desktop. I have a 60GB SSD as that I want all my OS files ...
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28 views

Failure proof logical volumes on heterogenous bunch of irreliable hard disks

Like I guess most people do, I have accumulated an assortment of various hard drives over the years. They are mostly of different size, manufacturer, speed, etc. There are too many off them to put ...
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Strange output of btrfs fi df after converting from RAID0 to RAID1

I just converted my 3 disk btrfs filesystem from RAID0 to RAID1 and balanced it. At first the data was all in the RAID0 filesystem, so running btrfs filesystem df showed something like this: (XX are ...
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246 views

Ubuntu 14.04 Trusty with UEFI + Software RAID1

How to install Ubuntu on UEFI BIOS with Software RAID1? Should there be 1 partition for EFI and another partition for RAID1 (root+swap) on each drive? I wonder how it will update one EFI partition ...
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387 views

mdadm warning (system unbootable) from update-initramfs, mkconf's suggested fix seems inconsistent with mdadm's description of problem

Summary: update-initramfs says system unbootable, message points to mkconf which suggests rewrite to mdadm.conf that would appear to break the RAID, system up (for now) but next reboot may kill it, ...
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35 views

Investigating RAID-related issue that caused data loss while using LiveUSB

I recently tried to install Ubuntu on one of my hard drives and something went seriously wrong, resulting in 400+ GB of data being lost. Frustrated as I was, I've decided to try to find out what ...
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200 views

Raid5 can't start degraded, dropping to shell

Already posted about this here: http://ubuntuforums.org/showthread.php?t=2219141 but thought I could post here as well, in hopes that it would increase my chances of a solution :) I've been running ...
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143 views

Change initramfs script

I made RAID 0 by mdadm'ing partition located on dmraid VIA VT6421 and Western Digital hdd. Installed Ubuntu on that RAID. Now, when I boot, I get (initramfs) ash prompt. There, I have to write mdadm ...
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173 views

Ubuntu 12.04 ext4-fs error/inode

I am running a Dell PowerEdge T420 with Ubuntu 12.04 32bit. The hard drives are a RAID1 setup. Last week, I began getting errors that cause the build I am running to fail. I found this in the log ...
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43 views

RAID6 Ubuntu rebuild - how to calculate best parameters for fastest rebuild

I am doing a resync on a RAID6 array and I am looking at some 2 days to complete. I looked here for hints on how to speed it up, but I have, instead, managed to slow it down! HW details are: 10x 4TB ...
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156 views

Disabling windows only features (Intel SRT, etc) so I can install Ubuntu (Dell XPS 15)

I'm working on installing Xubuntu on a Dell XPS 15 and I trust this guide. It says I should do the following: Turn Secure boot off. Turn Fast boot off. Turn Intel SRT off. Remove RAID meta-data ...
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36 views

GRUB error with RAID when other HDD's exist

I had this exact issue with Debian. Grub has no issues loading at all as long as all of my HDD's are turned off except for my hardware RAID array. When there's more than just my RAID, it fails to ...
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69 views

Syncing/Mirroring two partitions (Sata, USB) : RAID or not?

My 12.04 Ubuntu server has a 120Go internal SATA sda5, ext4 partition. I also own a 500 Go USB2 external hard-drive from which I could easily free 120 Go. Now, I've been meaning to set up mirroring ...
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226 views

using GRUB to boot a linux system on a different device?

I bought a new SSD drive with the idea of running my Ubuntu system on it and leaving the other two SATA drives (which are configured in a RAID array) for storage only. Ubuntu installed with no ...
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123 views

mdadm array: there is not enough space on the disk

I have this array of approx 6TB (ext4) and i am getting a disk space error. I only have a total of 800GB to copy to the shares I have created. I am using robocopy to copy this data from a windows ...
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52 views

How to fix broken upgrade on Ubuntu Server on USB thumbdrive with Encrypted LVM

Oh woes is me: I decided to do a do-release upgrade on my workstation and managed to bork my production workstation. My setup was as follows: 32GB usb key that Ubuntu Server booted from - this ...
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145 views

Ubuntu 12.04 Raid wont assemble after move to new PC

Alright, so I swapped the system board out on my server running Ubuntu 12.04. The OS is on its own drive, and then I have 1 storage drive, and 3 drives in a Raid 5. Well, when booting up with the new ...
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212 views

Sony vaio vpc-z1 operating system not found

I have a Sony Z1 laptop signature series that is saying operating system not found When I try to start up the computer. On start up I pressed the F3 button and it shows the Samsung SSDs as error ...
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Can I create partitions and encrypt a couple of them for ubuntu 12.04.2 installation???

I am trying to install Ubuntu 12.04.2. I have onboard RAID with 2 identical solid state drives bought at the same time and that's ok, because ubuntu recognizes them as one disk. However, I want to ...
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294 views

Raid Issues Cannot Boot and Getting Superblock Errors

I am getting the errors below. How do I get the RAID array fixed. I'd like to get it mounted via the live cd that im booted into as well. Just so I can backup a few items. My setup boots from the RAID ...
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154 views

Setting up Cluster Configuration using an existing web server as a Primary Node?

We currently have a Primary node, which resides in the US within a Datacenter, but we are going to be using this for all serious bandwidth and resource intensive websites, and through a configuration ...
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310 views

MDADM Raid Array Fails to Mount On Startup, OK on Dynamic Access

First off, thanks for taking a look - I've tried to tackle this problem more than once to no avail. The long and the short of the back-story (though I can't recall specifics because it's literally ...