Questions tagged [raid]
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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Is bit rot still a thing?
In short:
I have a NAS which died once and since repairing it I have a secondary backup machine which runs ubuntu.
On the ubuntu machine I used mdadm to create a raid5 storage space.
Is it fine on ...
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Is there a way to replace a magic superblock?
Following instructions from the Internet (Without doing research first) I have blanked out the superblock on the incorrect RAID disk. Using this command;
sudo mdadm --zero-superblock /dev/sdd
Now ...
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Error on raid 0 when modifying the 00-network-manager-all.yaml file
I was making a change via SSH connection on 00-network-manager-all.yaml file on an Ubuntu Server 18.04 which is hosted on a three disk RAID0. While making the change and executing the command sudo ...
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Zpool not recognized since moving host
A zpool with 2 HDD in raid 0+1 was running on Ubuntu server (18.04). The computer died and won't turn on anymore, probably a PSU failure.
I've moved the zpool discs into a new machine and the are fine,...
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Mirror swap FILES
Mirroring (RAID 1) swap partitions is rather easy and recommended in some cases. It increase performence compared to single swap partition and increase resistance to drive failure.
On the other hand ...
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Move from booted RAID to single drive
Have Ubuntu 22.04 server installed on RAID5. It boots from /. I'd like to move it to a new SSD single drive though. My thoughts to do this is:
Make a backup of / with some software on backup ...
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Weird raid problem [closed]
I have a server with ubuntu 16.04 with this raid configuration:
├─sda1 8:1 0 7,6G 0 part
│ └─md0 9:0 0 7,6G 0 raid1 [SWAP]
└─sda2 8:2 0 924G 0 part
└─md1 9:1 0 923,...
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How to mount a single hard disk from a former QNAP NAS with a DRBD volume under Ubuntu for data recovery?
Under Ubuntu, how to mount a single disk from a defunct QNAP NAS with a DRBD volume with a software RAID 1, for the purpose of data recovery?
QNAP NAS, which was using software RAID1:
https://www....
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Reinstalling ubuntu server because of UUID mismatch
I made a media server with raid 5 setup. Since it's a small case I had some of the HDD on the outside.
One of the HDD plugs got pulled out and since then when I boot I get a UUID problem which makes ...
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System dead after update and reboot
So I rebooted my system after an update and upgrade. Now my raid is missing, all of my network settings, programs, etc are "missing" I think they are all in the missing raid. I have to use ...
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Had to switch my computer from RAID to AHCI -- should I be concerned?
I'm a bit of a noob so sorry if this is a bad question. I recently accidentally spilled some liquid on my Dell laptop which I bought years ago with ubuntu 18.04 pre-installed. Fortunately, the repair ...
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Kernel Panics Unable to mount rootfs, HELP
Hej, I need some serious help, I recently updated to 22.04.
I'm not unable to start server with out getting this error.
I upgraded from 18.04 to 20.04 with no issues so am surprised I now got this.
...
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Ubuntu servers 22.04 shutsdown after some time
I manage a server for a friend. This server ran fine but when I tried making it go to sleep at a specific time and wake up using a cronjob, the server would not wake up using rtcwake. While trying to ...
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What is a "SparesMissing event" of a md RAID 5 array?
I have set up a Ubuntu Server 22.04 installation with a xfs filesystem on a RAID 5 /dev/md0 array. Now I get e-mail notifications from the mdadm monitoring, that a "SparesMissing" event has ...
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I cannot boot if mdadm RAID1 array is in FSTAB
Context:
Due to a failed update from 20.04 to a 22.04, I decided to reinstall from zero the 22.04.
All things went fine, but I’m with an unbootable system if I left RAID entry at FSTAB.
I have a 2 ...
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Ubuntu 22.04 LTS freezes during RAID recheck of multiple RAIDs
I run Ubuntu 22.04 on a machine with three software RAIDs of different size and geometry, with two of them (they are called md5 and md6) very large. Disks are shared between these arrays for certain ...
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How to identify a bad disk in a RAID setup on Linux?
I am observing the below error on dmesg for a RAID Array. How can i go about finding which drive in the RAID is bad
[Fri Aug 26 19:31:13 2022] EXT4-fs warning (device md0): ext4_end_bio:349: I/O error ...
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After I installed Ubuntu 22.04 "error processing package mdadm (--configure)"
I upgraded to Ubuntu 22.04LTS from 20.04LTS.
Now it appears that the "mdadm" package is giving me hassles.
Whenever I want to look for upgrades in terminal I get this error message:
Setting ...
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Setting up a RAIDed Swap Partition
I have a highly customized procedure to install Ubuntu in an encrypted ZFS file system, and RAIDed drives. A description of the installation procedure can be downloaded here:
https://www.mediafire.com/...
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Recover data from RAID 1 member
I am trying to recover data from a drive that was part of a RAID1. First a little background.
The RAID1 consisted of 2 disks (/dev/sde and /dev/sdf). It was built ~6 years ago using mdadm. In recent ...
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Ubuntu 22.04 server autoinstall software RAID 1
I'm working on an Ubuntu 22.04 Server autoinstall. So far it works great on a single drive.
But the next step is RAID 1... According to the cloud-init docs this is not supported as part of cloud-init ...
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Intel RST on ubuntu for NVME (not sata/ahci)
Plenty of questions surrounding this and people say switch to ahci. That would be awesome, but my nvme evo 980s don't have ahci options in the asus rog bios on the wifi gaming d4. AHCI is a sata only ...
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Ubuntu server destroyed my raid5 array
I have a machine running Ubuntu server at home with a 4 drive mdadm ext4 raid5 array. It was running 20.04.4 until about 3-4 weeks ago when I upgraded it to 22.04. It was running well until 5 days ...
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How do I set up a software RAID 1 in Ubuntu 20.04 LTS mounted as `/data` on the same level as `/home`?
How do I set up a software RAID 1 in Ubuntu 20.04 LTS mounted as /data on the same level as /home (i.e. "aside" /home) using 2 drives with the system installed on a third drive drive?
I ...
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Any software I can use on ubuntu to mirror one of my drives to other drives on my system in order to backup my files?
I'm looking for something to use on ubuntu desktop 22.04 LTS that I can use to mirror one of my drives on my system to the other 3 drives on my system to backup my data. I am new to this.
Hardware ...
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Not booting from raid after upgrade from 21.10 to 22.04
After upgrading my system from 21.10 to 22.04 it does not boot anymore.
Let me describe my setup first:
I do have two SSDs combined in a Raid 0 (Intel Rapid Storage Technology).
This is where my main ...
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RAID validation fails during Ubuntu Server 22.04 installation
I've followed Install Ubuntu 20.04 Focal Fossa with RAID 1 on two devices to set up RAID 1 during the installation of Ubuntu Server 22.04, yet installation always fails with a RAID validation error (I ...
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Ubuntu installation on Poweredge 720: "Block probing did not discover any disks"
I'm getting an error installing Ubuntu 22.04 server on a Dell Poweredge 720. Each time I try this, I get the error "Block probing did not discover any disks. Unfortunately, this means that ...
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Where are the server "alternate" installer images for 22.04?
Basically, I have the same question as : Where are the server "alternate" installer images? but for 22.04.
I was able to find these for 20.04 in the past (I have them on a USB), although I ...
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RST RAID-0 NTFS partitions not available to mount
I've a double boot Windows 10 and Ubuntu mate on separate disks (F8 boot select).
I've a RAID-0 block made in Windows 10 on RST that is working fine as secondary disk. This block is not meant to boot, ...
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Dual Booting Ubuntu 22.04 LTS with Raid 0 grub installation failure
I am fairly new to Ubuntu so bear with me. I recently built a PC and I wanted to run software RAID 0 on my two 1T SSDs; however, I also want to dual boot Ubuntu 22.04 alongside Windows 10. In the ...
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Boot from USB RAID1 in Raspberry Pi 4 running Ubuntu 22.04 64bit
The Raspberry Pi 4 8GB I received today boots without any modification from USB and can run Ubuntu 22.04 64Bit pre-installed for arm.
My idea was to have two USB drives RAID1 in the USB3 ports with ...
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Help with mounting mdadm array
I recently lost my NAS and am trying to recover the data in my RAID. The disks are fine, its just the NAS hardware that stopped booting and I can't get any support as its discontinued.
I attached the ...
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How to determine which physical disk in a RAID needs to be replaced in the event of a failure?
If I have a RAID array configured (using mdadm), what's the best way of making sure I can tell which physical disk to replace in the event that one fails?
cat /proc/mdstat will tell me that (say) /dev/...
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Install Ubuntu 22.04 desktop with Software RAID(1) -> LUKS -> LVM on machine with UEFI
I try made a super-duper hiper-secure configuration with:
Software RAID(1) -> LUKS -> LVM
To do this I have 2 physical SSD drive (Crucial MX500).
I'll following along instructions available here:...
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System boots to initramfs after upgrade from 21.10 to 22.04
I upgraded to jammy and now I have problems.
I have two 500G SSDs (sda/sdb) in RAID1 mirror in ASUS BIOS ("promise" RAID, I suspect) and sdc is a physical LSI RAID controller. It's a UEFI ...
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Erase logical volume and use freed space to enlarge existing volume on RAID
I am working remotely in command line and need to remove old unused volume and use this freed space to enlarge the volume holding /home.
I am not sure of the terminology so see relevant lsblk below.
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How can I create mdadm RAID1 without losing data?
I have a 4TB hard drive. I mounted that hard drive in /var, to be able to store and make backups of a production server, and I came up with the idea of creating a RAID 1. For that I requested another ...
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Ubuntu Server install on RAID0
Trying to setup RAID0 on a server 20.04. I have 2 new NVME drives and the ubuntu installer is only showing 1 drive as multipath. If I use shell and run lsblk then I see both drives. The desktop ...
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Recovering folder deleted sudenly / recovering ssd raid 0+1 hp
Server HP G9 - DL 360
**Ram :**256 GB Ram
SSD : 4 SSD 500Gig Samsung EVO (All Samsung ssd hard is configured to Raid 0+1)
https://www.samsung.com/uk/support/model/MZ-76E500B/EU/
**Sas :**1 TB Sas HP
...
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How to find out what type of RAID was used and possibly mounting the drive
I found a hard drive that I used in a file server years ago using Ubuntu with Samba. I would like to see if anything on the drive is recoverable. There were 2 drives and one got wiped. I don't ...
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Putting /home in a different drive than root drive
I have SSD, and HDD, on a new computer that I am preparing installing Ubutu 20.04 on. Because the SSD, and HDD, will be RAIDed, and both will be natively encrypted, I am doing a manual install. I have ...
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Ubuntu Root on ZFS
These questions are in regard to this article:
https://openzfs.github.io/openzfs-docs/Getting%20Started/Ubuntu/Ubuntu%2020.04%20Root%20on%20ZFS.html
I intend to follow those instructions using an ...
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Raid0 disappeared after ubuntu upgrade. How to recover it?
I may need a lot of help here..
After upgrading ubuntu from 16.04 ->18.04 ->20.04, my raid0 array disappeared. I wish to reassemble the raid array. While working on this, I might have committed ...
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mounting EXT4 linux raid1 array with WSL2 on a windows host machine
Two years ago I created a linux/ext4 raid1 array of two 4TB WD Red HDDs to mirror my data. At that time I was using a small ARM64 device, and used mdadm to assemble the array. That small computer was ...
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Missing md2 partition in raid
today I restarted my machine and it is not booting, so I launched a recovery image and ran lsblk and this is the output:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 3G ...
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Installing with Dual boot, raid 0, 3 drives
I’ve searched but don’t see my issue covered which is a variation of the dual boot Ubuntu install issues many seem to have. The way I see it, mine should be more straight forward but that doesn’t seem ...
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Try to read raid 1 (mirror) disk
I have the raid 1 (mirror) disks coming from an enclosure that stopped working.
So I am trying to recover the data putting one disk into a USB adapter.
When I connect the adapter /dev adds item sdb, ...
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Ubuntu 20.04.3 on Dell R-620 with PERC H710 RAID controller installation reports error: attempt read-write outside of disk `hd0`
I am trying to optimize the reliability, HD usage efficiency, and HD performance of a fresh install of Ubuntu 20.04.3 LTS on a Dell R-620 which has six 2 TB HD in a RAID-5 drive created and managed by ...
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How to use dd to clone single drive to raid1?
Running dd if=/dev/sda of=/dev/md126 is taking some time so it seems like it's working but I am not sure what else may need to be done after to make the system bootable.
When trying to mount /dev/...
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