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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Unbuntu RAID 1 lost (md0)

I've had this setup for over a year and today I seem to have most md0 which was my data raid.. My OS raid is still working... From dmesg (both ata3.00 and ata4.00 are reporting the same [ ...
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Problems with RAID1 after 14.04.1 update, related to bad geometry: block count

I did some research but I can't quite point out how to resolve my problem. So I need to askubuntu. I setup my RAID some time ago, so I don't remember all the details, all I know is that is RAID1 and ...
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1k views

Recover data from RAID1 array (My Book Live Duo)

I have a WD My Book Live Duo device which I used as a network drive with a RAID1 configuration. The device, which was working flawlessly for almost 2 years suddenly stopped working, that is; it was ...
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32 views

2nd and 3rd disks mirrored for backup on Ubuntu Desktop

I wish to set up a small home server providing NAS and Web server functionality to my home network. I'd like to be able to store family pictures and other things I'd want backed up. So I had ...
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153 views

mdadm doesn't seem right

I watched a youtube video where a guy made a raid 1 with 2x 2 gb usb drives. I am using 2 x 3tb disks to have a raid 1 mirror. My concern is my sdb1 size=-1364702208K sdd1 size=-1364702208K. which is ...
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61 views

on fakeraid, could not mount / at boot, then boots to purple screen

I'm running Ubuntu 14.04 beside Windows 8 on an Asus UX51VZ-XB71 which comes with two SSDs configured in a fake raid-0. I can install 14.04 successfully by booting into the live usb, assembling my ...
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502 views

Install Adaptec RAID 6405 on Ubuntu 12.04 (3.13.0-37-generic)

I'm trying to install an Adaptec RAID controller on Ubuntu 12.04. So far, I've downloaded different versions of the driver, but executing the specified commands yields some errors. sudo dpkg -i ...
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108 views

unable to install ubuntu on sata hard disk

I would like to install lubuntu in my old pc. I have a pci sata/raid from Syba sa3114 which connect 3 sata hard disk 1TB When I install and create the partition, I recive the following message: The ...
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394 views

mhddfs constantly disconnecting (“Transport endpoint is not connected”)

I'm using mhddfs in conjunction with SnapRAID and it has started disconnecting the fuse drive at least once a day. I know I can unmount/remount for a quick fix, but I'm implementing this in a media ...
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34 views

Mainboard RAID or something else?

I am trying to install Ubuntu Server on my new machine. I configured RAID through the BIOS prior to installing the OS. I set it up for RAID-1. When I go through the install process the installer ...
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26 views

users and shares on external partition

I have tried my upmost to get this working and have lost the will to live but am not going to give up! Basically, I have 1 SSD which I have just installed Ubuntu 14.4.01 on fresh and I have created a ...
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111 views

Configuring RAID in HP Proliant ML350e Gen8

We have purchased two stock HP ML350e Gen8 servers. Ubuntu 12.04 is to be installed in those. The stock base unit have provision for 6 hard disks for creating RAID in which, one is filled with 500GB ...
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73 views

Slow startup with raid0 ssd… Bootchart

My laptop is an HP Elitebook with an RAID0 Samsung 840 evo (2x120GB) Array Windows loads fast, but ubuntu boot time is extremely slow - 02:49 minutes!! (also, the screen flickers weirdly as it shows ...
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149 views

Unable to access “222 GB Volume”

I've installed ubuntu 14.04 along with windows 8.1. After installing ubuntu I'm unable to boot windows and unable to mount my 222 GB volume. I got following error when i tried to mount my 222 GB ...
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71 views

How can I ensure simple way RAID 1 is working?

I have formatted 2 large hdds and connected them to RAID with commands: mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb1 /dev/sdc1 mkfs.ext4 /dev/md0 mkdir /mnt/data mount /dev/md0 ...
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70 views

Booting from raid

I've installed ubuntu server 14.04 on a small rack server. It has two disks 500GB each, which I put in a "special" raid mode called recovery, so it's kind of like a mirror. When installing ubuntu ...
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111 views

raid mdadm “active,resync” after reboot

I created a raid1 (Intel RST + Ubuntu Server 64Bit). I waited until the mdadm status of the raid changed to "clean". All worked fine. But I noticed that after every reboot, mdadm shows "active,resync ...
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How to fix RAID1 array by mdadm with script?

In system works two RAID1-arrays madadm. There is one reserve disk to change faulty disk. I need to write a script which will be monitoring disks and automatically fix degraded array. How do you ...
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457 views

mdadm raid1 boot error

I created a RAID with Intel-Rapid-Storage(RST) - containing 2 3TB HDDs. Then I installed Ubuntu Server 14.04.1 64Bit. Everything worked fine and then I did a reboot. Then I got the following error ...
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375 views

Move RAID 1 Array to new system

I am rebuilding my Ubuntu home server, but I want to preserve my two disks currently in Linux software RAID 1. My current config is: One 240GB HDD configured as OS Disk (Ubuntu 12.04 LTS) Two 3TB WD ...
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79 views

Will the boot-degraded flag remain after upgrading to 14.04?

I am currently running Ubuntu 12.04 and have a RAID setup with the boot-degraded option. If I upgrade to 14.04 will the boot-degraded option remain? I manage this server remotely and would hate to ...
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963 views

MDADM RAID1 Home Server System disk error: incrementally starting raid arrays mdadm: Create user root not found

I'm not sure what else to check. Everything below looks sane to me but the system hangs on boot. This is a home server with four disks crammed into a Dell OP620. Each pair of disks are assembled as ...
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96 views

USB 3.0 ExternalEnclosure Unmounts at random

Title says it all. I noticed the drive was unmounted, so I got to looking through dmesg and found: [31080.516164] usb 4-3: USB disconnect, device number 3 [31080.760493] usb 4-3: new SuperSpeed USB ...
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OS - Does not Show 100% HDD Capacity

I am from Dell Technical Support -- One of our customers has a Dell System Model T5610 and has installed 2-256GB SSD HDD and 2- 4TB HDD and Configured RAID-0 of 2 Arrays on Intel Based Chipset ...
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162 views

Boot repair on raid after crashed system-upgrade

I found it difficult to find an answer to this problem without specific step by step advice. During an Ubuntu system update an error occurred and it froze my PC. After a forced shutdown I encountered ...
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141 views

Ubuntu 14.04.1 install on Areca ARC-1883i - kernel detects partitions, installer sees no disks

I have a strange one here - when installing the kernel load detects my RAID controller and looking in the F4 debug screen, I can see it also detects the two volumes there. When I come to the part in ...
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66 views

Why do I see permanent disk activity on my software raid partition (/home)

I installed Ubutu 14.04 server with this partitioning: / on an SSD /var and swap on a single SATA drive /home on a software raid1 consisting of 2 SATA drives. I switched all partitions to noatime. ...
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86 views

My VirtualBox VMs Virtual Disk Folder are missing after reboot

I using VirtualBox in Ubuntu 12.04 64 bit and yesterday one of my windows guest got bluescreen so swithed off my guest. After restart it won't start, when I saw the guest virtual disk file and folder ...
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4k 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 ...
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972 views

Creating a RAID1 Array, “Disk doesn't contain a valid partition table”

I'm trying to create (two) software RAID1 arrays on two identical 4TB non-boot drives. I'm following advice from several forum posts but keep running into trouble. Here's what I've done so far: for ...
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283 views

How to make Intel fake RAID 0 volume appear on boot with Ubuntu 14.04 in a multi-boot environment?

I have a computer with a Gigabyte GA-Z97N-Gaming 5 mainboard, a 256 GB drive for booting and two 3 TB drives meant to use in a RAID 0 setup with both ext4 and NTFS partitions. We are planning running ...
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451 views

Ubuntu installed /home to visible RAID array, but can't find it on boot

I'm using the Desktop version of Ubuntu 14.04.1. I started up the liveCD, installed mdadm, and created a RAID 1 array on a 3 TB HD. I then restarted, went directly into the installation menu, and ...
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data distribution after adding additional disk in raid 5

"I had set up raid 5 by equal capacity with 3 hard disks in ubuntu 12.04 and I need to perform scaling.After adding 1 disk,how to monitor the data distribution and possible inputs.Is it possible?"
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Ubuntu 14.04 desktop and RAID

I have 2 128GB SSDs on Asus Zenbook. I tried to boot into Ubuntu live CD (try Ubuntu) and create RAID from: Then tried to instal uUbuntu, but it fails to install grub on RAID. Another solution I ...
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408 views

How to install Ubuntu server 14.04 on LVM RAID?

I want to try install ubuntu on LVM RAID logical volume, but fail on step grub installation. There are my steps as below: 1. use three HDDs called sda, sdb, and sdc to create a volume group. 2. ...
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How to setup a Ubuntu Raid to be accessed by the Domain Active Directory Server

I'm new to this. I have setup a Ubuntu 12.04 server on a Dell PowerEdge FS-12. I have setup a large area on the FS-12 (raid 50) to replace one of the drive mappings on the windows 2003 server. I ...
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Dual boot ubuntu with raid configuration

I have a pc currently running on windows 7 with following specifications: Intel Core i7 CPU 930 @ 2.80 GHz Installed memory RAM: 6 Gb When configured it was RAID and showing 2 partitions, But when I ...
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How to make RAID1 on running ubuntu 12.04

I want to make RAID1 on a running linux I installed the Ubuntu server 12.04 Then, I installed the backuppc software. I installed the OS on a HDD with 160GB of storage So, I want to put another 2 x ...
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281 views

RAID drive not detected by Lubuntu installer

I wanted to install LUbuntu on a old computer: a P4C 2.53GHz asus P4PE 2go RAM with a WD raptor 36go (sata) as system disk and a maxtor damondmaxplus8 40Go (uata). Currently Mageia 4 is installed ...
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Unabel to open another HDD with Ubuntu 14.04

I'm new to Ubuntu. I have installed Windows 8.1 next to Ubuntu 14.04, on one HDD. This first HDD working fine, I can access to my windows file etc. But I have another HDD named "Maya" where I have ...
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Basic question about RAID/FlexRAID

I have an Ubuntu Server install (14.04.01) that I have been using for about 1 year. Its mostly used as a Samba and Plex server running off one 3TB hard drive. I purchased two more drives with the ...
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113 views

Fresh install of 14.04 server edition doesn't boot

I've installed ubuntu 14.04 server, but on power-up I get the error message "Reboot and Select proper Boot device", even though I've set boot priorities correctly. The server is going to be a NAS. It ...
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409 views

OVH - Dedi 14.04 Server - Raid Reconfiguration Help for a Total Noob

I am a linux noob and have been saddled with a problem far beyond my abilities. My situation is this: This box: http://www.soyoustart.com/us/offers/bk-24t.xml (6x4TB drives) OVH image based ...
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52 views

Can't Reboot mdraid

I just created a raid 0 array with the following commands: # Install the necessary packages sudo apt-get install xfsprogs mdadm -y # Create the RAID 0 array. mdadm --create --verbose /dev/md0 ...
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96 views

Create a RAID5 on my Ubuntu Server 12.04

I have an operational Ubuntu Server 12.04 with only one HD (1Tb). I need more capacity and stability, so I bought last week 3 HD(1Tb each) to make a RAID5 and migrate the information of the old HD to ...
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134 views

Extra RAID array keeping disks busy

I have a software RAID-5 with 5 disks (Seagate ST31500341AS). SMART was saying that one was at risk of IMMINENT FAILURE. I replaced it with a new disk, also a 1500GB Seagate. The array wouldn't start ...
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85 views

Ubuntu 14.04 Server with RAID 1 and Windows 7 for file backup

I have an Ubuntu 14.04 Server with RAID 1 with 250GB (2 x 250GB). And, on my notebook, I have Windows 7. Ubuntu Server shows up on my notebook but won't copy/move any of my files that I want to ...
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219 views

Degraded mdadm RAID5 array & ARRAY UUIDs mismatch (Ubuntu 14.04.1)

Every reboot on my server results in a halt due to a degraded RAID5 (software) array. The same drive /dev/sdc appears to be dropping out each time. I ignore and boot with a degraded array any ways. ...
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343 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 ...
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779 views

Problems booting from software RAID

TL;DR: created RAID 1 at installation of Ubuntu desktop but it won't boot after seemingly successful installation, although boot utility seems to indicate that GRUB is installed I am trying to set up ...