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.
Questions tagged [raid]
1521 questions
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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, not just using GNU parted to output the partition…
Kris Harper
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44
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4 answers
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 works for getting everything set up and Ubuntu…
Kris Harper
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39
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1 answer
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 there.
But Ubuntu installer didn't allow me as I got…
SubinR
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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, unattended-upgrades has reported this:
Processing…
ygoe
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1 answer
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 that I have raid on from Sata configuration from…
Dorin
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How do I rename an mdadm raid array?
For some reason, when I try to rename an mdadm raid array to a textual name, the change doesn't take.
I tried the advice from this serverfault question, but to no avail.
~$ mdadm --version
mdadm - v3.1.4 - 31st August 2010
~$ sudo mdadm --detail…
Zaz
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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 Ubuntu 14.04 64-bit desktop on a RAID1 root…
Niclas Börlin
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4 answers
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. So I want to use that kernel with 14.04.
I know…
Degenerate
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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 Oct 20 20:00:41 2010
Raid Level : raid5
…
Jorge Castro
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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
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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 span 100% of the drive. But suddenly, one of the…
JaSauders
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How to enable degraded RAID1 boot in 16.04LTS?
In previous ubuntu versions, adding BOOT_DEGRADED=true to /etc/initramfs-tools/conf.d/mdadm allowed the system to automatically boot when the root filesystem is on a degraded array. This no longer seems to work in 16.04 LTS.
The documentation…
vdyvp
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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".
I have tried:
root@barabasi:~# blkid …
Sebas
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How to access MD RAID via Live CD?
We are currently trying to run access the data on a server running a HP Ml110 G5 SATA raid controller, using the latest Ubuntu Live CD. We need to delete a few files to let the server boot into Windows but are unable to mount the partitions.
We can…
Neil
16
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8 answers
How can I physically identify a single drive in a RAID array?
I have an external drive bay with 4 eSATA disks in it. My system has a 4-port eSATA card, as well as a pair of internal hardware RAID1 drives. The external drives are in software RAID1 pairs as /dev/md0 and /dev/md1. Both have been configured as LVM…
Kees Cook
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