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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mdadm reports "

I'm running a software raid1 array with two 32GB USB 3.0 sticks holding my 14.04 LTS server. Querying the array returns the following: root@microserver:/home/leuser# cat /proc/mdstat Personalities : ...
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Cannot mount 2 windows merged ntfs volumes in ubuntu 14.04

when my brand new Ubuntu is trying to mount my two hard drives that was merged in windows 7 I get this message: Error mounting /dev/sdc1 at /media/luttikon/Media 1: Command-line `mount -t "ntfs" -o ...
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Questions About Raid 1 Configuration

I am considering setting up a RAID 1 configuration. My intention is to secure my data by having it on two hard drives. I have a couple questions. 1. What if one hard drive fails? Will Ubuntu ...
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179 views

Failed Dual Boot: Windows 8.1 & Ubuntu 14 - No operating system found

Please help, my situation is as below: I decided to give a try to dual boot windows 8.1 (Preinstalled with VAIO S on RAID0 (Intel RST)) and Ubuntu 14. However, all my boot entry on efi boot (left ...
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96 views

Xen 4.4 on Ubuntu 14.04 dom0 “Gave up waiting for root device”

I've failed to get any response from users on the Linux Mint forums, however, Mint being an Ubuntu egg, I thought I'd try here. I attempted to install Xen hypervisor 4.4 on a clean install of Linux ...
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101 views

Mirror my LVM data disks - Ubuntu 14.04 Server

First of all, this is my first post, and I am very new to Ubuntu and everything Linux. My problem is this: I recently installed Ubuntu server 14.04 on my home server's 1TB drive. I also have 2x 2TB ...
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20 views

Raid 0 with usb?

Is there a way to use two or three external hard drives to set up a Raid 0? Are Pci cards for this purpose available/dependable?
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132 views

Having trouble mounting a 12TB Raid on Ubuntu Server

I am running a Ubuntu server on my off of my 2008 MacPro, it runs great and works really well except I am not able to run any raid setups directly on it. I have a large library that needs to be ...
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109 views

can not boot: mountall main process terminated with status 2

i installed ubuntu 14.10 server and somehow it does not want to boot anymore: mountall main process terminated with status 2 my software RAID5 /dev/md1 should be mounted to /. I can mount it RW in ...
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10 views

Degraded RAID, which isn't

Here's my issue. I rebuilded my RAID-1 Array a while ago, but after I do a reboot, it always gets degraded, saying that one of my drives aren't attached. I also noticed that if I stop and then start ...
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50 views

Unable to uninstall/install apps do to mdadm

So I upgraded from 12.04 to 14.04 and I had a software raid 5 running. Since the upgrade my raid array seems fine? I can still access it and put files on it etc but when I run any apt-get install or ...
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89 views

Dual Boot Windows 8.1/Ubuntu on RAID/Single drive system

I have a PC over an AMD platform with the following configuration: AMD Athlon II X4 630, ASRock 990FX Extreme4, 8GB RAM, GeForce 8800GS, 2x500GB Hard disks on RAID0 configuration (1TB) with Windows ...
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19 views

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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110 views

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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49 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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87 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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285 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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30 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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97 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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51 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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64 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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98 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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79 views

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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44 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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69 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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238 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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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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27 views

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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58 views

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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96 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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80 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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100 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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78 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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179 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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155 views

Help fdisk 4 (near) identical 1TB drives

I have 4 drives to setup a Raid 5, but apparently they are not identical. I am not sure what steps to take next. It seems that I have (3) 512 and (1) 4096 sized drives. What should I do to format, ...
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38 views

I lost my raid…(it won't load)

After plugging in an extra drive I lost my raid drives. In the drives GUI it shows all of the raid drives as connected but when I go to start the raid it says: /dev/md/Storage assembled from 1 ...
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88 views

format/build raid 5 with one 4k drive, three 512b

I have 4 WD 1TB drives which I want to 4x1TB Raid5. I am not sure what course of action to take next. How do I configure my 4th drive (sde) to align with the rest? Will this affect performance? I ...
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49 views

Installation with FakeRaid

I have a problem while installing Ubuntu on my laptop. Actually, Windows 8 is installed with a raid0 managed by the Intel Rapid Storage Technology. At first, I tried to install without delete this ...
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57 views

Installing Ubuntu 14 Server x64 on Intel Array 1 system

I have a server with Intel i7 technology. It comes with 2 hdd (2tby each) and I configured (using bios) as RAID1 (mirroring) When I started Ubuntu Server installation, it recognizes the array, asked ...
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110 views

Make Win7 Bootable After Ubuntu/Kubuntu Install

I had a Win7 install on a raid array (sda...) and added a second drive (sdf) for installing Linux. Installed Ubuntu initially using a Grub boot loader (no problem, Win7 still bootable), but then ...
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How to select the number of mirrors in a raid10 with mdadm

i know ho to create a raid10 with mdadm but i don't know what is the parameter for select the number of copies. I have 6 hard drives. Using the default values it will make only a copy of 3 hard ...
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31 views

Ubuntu instalalion Fail Fuel deployment on Dell 1950

I am trying to use Mirantis Fuel to deploy OpenStack and encounter problem with Ubuntu installation, I am using Dell 1950 with no RAID set so the system detect 3 attached disk, upon finishing ...
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192 views

How to preload driver before Ubuntu 14.04 installation?

I have a Raid card: LSI 9311-8i. I want to install OS on RaidCard, but original Ubuntu 14.04 does not include mpt3sas driver, so it cannot detect the raid volume. How to make Ubuntu detect the volume? ...
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151 views

RAID 0 Superblock recovery?

Cool, I have a Synology Diskstation 212j, with 2x3TB drives in RAID 0 (I know, I know, I was very naive; never had a drive failure before). About a month back the volume crashed, I recovered the ...
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129 views

64 Bit Xubuntu on Full Software Raid 0 Using Mini.Iso

What I am asking is doable but the thing is I forgot how to do it since the last time I did. I recently upgraded my Ram to 8Gb from 2Gb. I am using an Asus Maximus Extreme with an intel core 2 duo ...
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131 views

Ubuntu 12.04 - Reinstall Grub on a Raid-1 via LiveCD

I had a hardware issue which caused my Ubuntu Server to fail. After the problem has been resolved I still cannot boot into my Ubuntu installation, but fall into initramfs instead. To me it seems that ...
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Can't alternate users, need to logoff to login other on ubuntu

I installed from scratch the Ubuntu 14.04 and configured it with a Samba share. There is a windows share RAID 1 drive (2 x 1 TB) with Mdadm, that Dropbox and more 2 backup solutions access (Acronis ...
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42 views

booting from USB with Raid

I am trying to install the latest version of ubuntu on a dell precision t3500. but when I boot to usb stick. I get an error that says busybox v1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) build-in shell (ash) ...
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30 views

Fully recovering HDDs after using of RAID controller

I've been using Ubuntu for a year. But today happened something awful to me. I bought four-core AMD computer to do some virtuals there. But, I had wanted to reduce the risk and found motherboard RAID ...
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175 views

Dual-Boot Ubuntu and Windows 8 w/ SSD in Raid 0 won't install bootloader (Asus UX301)

I have been trying to install Ubuntu on my brand new Asus UX301 to no avail no matter what I try. I am always not able to install the bootloader on any partition. This does not matter whether I boot ...