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1
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0answers
13 views

Help with RAID5 array - gone after reboot

I'm newly back to Linux after >20 years. First install was with a beta kernel in ~1992. I've build a home media server with a 4-drive RAID 5 array with the latest workstation version of Ubuntu ...
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0answers
9 views

fakeRaid 5 with dual boot

I am wanting to use my MoBo raid to set up raid 5. I am going to have win 7 and win 10 also installed. The OS's will be on a different non raid hard drive. The raid 5 will just be for data storage. ...
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0answers
44 views

Remove mdadm raid5 but no loosing data!

I have 4 disk with 3TB every one (4x3=12TB) I was searching to recover information to remove the raid5 without loosing data. But I found that post here So I followed the steps but my question is, ...
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0answers
37 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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0answers
12 views

Reinstall Ubuntu while maintaining contents on RAID

To start, I am a complete UNIX newbie and went with linux to set up my HTPC because I was worried about support for hardware and software raids on other platforms. For some reason when I boot my ...
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0answers
101 views

unable to install ubuntu server 14.04 to raid 5 array on highpoint rocketraid 3620

I recently purchased a Highpoint Rocketraid 3620 to bypass the horrible Intel controller on my Asus p6t deluxe v2 motherboard. I currently have three 1TB drives attached to the card currently not in ...
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0answers
110 views

Block size of 4096 Byte min. file size is 1 MB

If I create a new text file of size 1 KB, it takes 1 MB on my disk, although block size is 4096 Byte, how is this possible and how can I change this? System: Ubuntu Server Kernel: 3.5.0-39-generic ...
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2answers
118 views

Valid SSH command to create a RAID5? [closed]

Valid SSH Commands for creating and rebuilding RAID5 with 4 drives: To create a RAID5 with 4 hard drives: mdadm --create /dev/md1 --level=5 --raid-devices=4 /dev/hd[abcd]5 To rebuild a RAID5 with 4 ...
3
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1answer
536 views

Software RAID 5 Disk Failure

I'm going to need some expert help - free beer/coffee to anyone who get's me on my way! My System I'm running Ubuntu 11.10 with a 3 disk software RAID 5 configuration, with 3TB hard drives, in ext4 ...
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0answers
42 views

All data gone from healthy raid5 array

I have an issue with my Raid 5 array that is puzzling me. The PC crashed yesterday and after a reboot my raid 5 array was empty. cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] [linear] ...
2
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1answer
104 views

Bash script to check if mdadm is installed if not install it

I am currently working on a bash script to create raid5 with 3 disks and one hotspare. I am confused of how to create a script which first check if mdadm exist, if not it will install it and name it ...
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0answers
43 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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2answers
1k views

How can I mount software raid drive mdX with fstab

I have raid5 configure with gpt partition to allow working with drive larger the 1.6 TB Ubuntu version is 12.04 and the md drive is 5TB. with: mount -t ext3 /dev/md129 /images mount works ...
0
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1answer
115 views

When I mount my RAID5, there is constant activity; how can I figure out what it is?

there. I'm using Ubuntu 13.10 64bit. I have a 4-disk RAID5 (3 disks, 1 spare) setup, and it's completely synced/built, and the ext4 filesystem it contains is clean. When I assemble the RAID, all is ...
1
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1answer
652 views

Why is GRUB failing to install?

I'm trying to install ubuntu Server to a RAID5 array. I have three, 3Tb disks, each with a GPT partition table. I have set up my partitions as follows: /dev/sda 1. 512 Mb physical RAID volume 2. 3 ...
1
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1answer
745 views

RAID 5 won't mount

I have a qnap NAS which is running a version of ubuntu and I'm not getting any help from their forum so I thought I'd ask my question here. I "had" 3 2TB HD's in a raid 5 configuration. When I got ...
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0answers
122 views

Unable to mount RAID 5 array

Let me begin by saying I am a complete beginner using Ubuntu, but I'll try to give as much information as possible. I created a Raid 5 array and formatted it with mke2fs. I was able to mount the image ...
0
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0answers
77 views

GUI doesn't work, but server does

System: AMD Phenom II quad core 4GB RAM ATI 5750 GPU (I think) 3x3TB HD in Raid 5 config (installed these using Raider) Initially installed Mythbuntu, Everything worked fine. Upgraded to standard ...
0
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1answer
384 views

Ubuntu Server cannot boot - HDD problems

I have major problem, my Ubuntu Server won't start up after reboot, guys in Hetzner datacenter started recsue sistem up and found out this on sda: -----------------%<----------------- 5 ...
0
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1answer
149 views

13.10 with Raid 5 mount issues

I have installed Ubuntu 13.10 onto an HP Proliant Microserver with a Raid 5 configuration. Using Mdadm, it found the raid and now auto mounts when I reboot...but...the actual folders aren't appearing ...
0
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1answer
287 views

Mdadm RAID 5 failed, 1 drive bad 1 good 2 working

Sorry if the title was a little confusing but I wanted to show a little info. So I went to turn my pc on and ended up with the nice screen of having a failed array. /dev/sdb1 and /dev/sde1 are within ...
2
votes
1answer
237 views

Raid 5 mdadm --grow drops performance, no increase in disk size

I've set up a Raid 5 system at home for the first time. I've added 3 disks into the pc, and parted them all in 1 partition of 8G, and 1 partition of the remaining 492G then I made 2 raid volumes with ...
0
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1answer
505 views

recovering raid5 (mdraid) after clean OS install (Ubuntu Server 12.04)

======== After having to reinstall the OS I am having trouble accessing data stored on a RAID5 group built on 8 HDDs using mdraid. Advice much appreciated! I have a DIY home NAS server built on ...
0
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1answer
254 views

Ubuntu Server Raid Install

I am installing Ubuntu Server 13.04 on an ICH9R raid controller with 1tb of space (5 250gb Raid 5). Everything goes fine until the point of installing Grub. It will not install grub to anywhere but ...
0
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1answer
399 views

How do I install 13.04 alongside windows on an Intel Raid 5?

Whenever I try to install Ubuntu I run into issues. All the live CD's don't display the Intel raid 5 and show multiple drives. When I tried the 12.04 alternative, And the Raring Minimal ISO. The raid ...
0
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1answer
79 views

Upgrading from Ubuntu 32 bit to 64 bit with software raid

I'm currently running Ubuntu 13.04 32 bit. I'd like to move to 64 bit and everything I've read has stated that I should probably completely reinstall to do so. I have my OS on a 1GB hard drive and ...
0
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1answer
313 views

Which version of Ubuntu support HP ProLiant ML350e Gen8 Server?

Which version of Ubuntu support HP ProLiant ML350e Gen8 Server ?? will in future versions of ubuntu , the raid 5 will be supported ?
0
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1answer
81 views

Raid Partition Setup

I have 4 drives that I would like to install a RAID 5 on. 1) 80GB 2) 2TB 3) 2TB 4) 2TB Can someone help me figure out what the partition setups should look like? I am installing ubuntu server 12.04 ...
0
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1answer
2k views

Install ubuntu server 12.04.2 LTS with RAID 5 [duplicate]

I'm currently installing Ubuntu server 12.04.2. The hardware is as follows : 1 500Gb HDD for Ubuntu 4 3Tb HDD's for the raid 5 array. I'm just wondering : during the partition part of the install, do ...
0
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1answer
271 views

Copy a “bad” GPT partition table to another drive

I'm trying to copy a GPT partition table. To make a long story short, I had a RAID5 on 4 drives (Intel Matrix Storage Manager, not Linux software RAID). What I have now is: 1 empty drive 2 drives ...
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2answers
8k views

NAS Raid 5 Recovery using mdadm: volume and mount issues, please help

Hello this is my first foray into ubuntu, or any form of Linix for that matter, as well as my first attempt to ever recover a lost a raid, but I'm a fairly quick study. I have an 8TB WD Sharespace, ...
2
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1answer
6k views

grub error: out of disk when booting 12.04 server with hardware RAID5 and gpt

I'm trying to do a new install of 12.04 server on one node of a Dell PowerEdge C6145 with the following spec: 48 cores 512GB RAM LSI MegaRAID 9265 controller 4x2TB disks, configured with RAID5 giving ...
2
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2answers
845 views

Activate spare for RAID-5 in Disk Utility

I have a RAID-5. I'm trying to replace a failing drive in Disk Utility GUI. I added a new drive as a spare, then did "Remove Component" for the failing drive. How do I tell it to actually use the ...
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0answers
160 views

How do I setup RAID5 on 12.10 server without including system boot disk (after install)?

I have installed Ubuntu 12.10 Server on my HP Microserver. I installed it onto an SSD and now have 4 1TB HDD which I want to configure as RAID5. How do I go about doing this, can I do this from the ...
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4answers
3k views

Convert running system to RAID 5

I have a machine with 3 identical disks. I performed a clean installation of ubuntu 12.10 on one disk. How can I convert the running system to boot off a (software) raid5 comprised of all three disks ...
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0answers
41 views

How can I convert a running system to boot from RAID 5

I have a machine with 3 identical disks. I performed a clean installation of 12.10 on one disk. How can I convert the running system to boot off a raid5 comprised of all three disks (one of these is ...
1
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0answers
238 views

Building and migrating to software raid 5 array

I am hoping to build and migrate to a software raid 5 array. I am working with ubuntu 12.04.1 LTS 64-bit. I currently have three drives: /dev/sda1 which is a 60G solid state drive which contains ...
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0answers
2k views

Recovering from RAID5 with 2 failed drives, only one of them really dead

I have (had?) a RAID5 with 3 devices. One of them died, and after some days I experienced that the RAID stopped at all. However, I could restart it without experiencing any problems, but it stopped ...
0
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1answer
675 views

ubuntu 12.04 and/or 12.10 can boot from software raid5?

I read from a very nice post (http://forevergeeks.com/setup-ubuntu-server-with-raid-5/) that ubuntu cannot boot from a raid 5 partition. Since the post is quite old I wonder if this is still true or ...
0
votes
1answer
521 views

How can I create a 4TB partition on my software RAID5 device?

I have set up a RAID5 device with three 2TB hard drives using mdadm. The device was successfully created, but I cannot seem to create a partition on the device. When I try to make an ext3 or ext4 ...