LVM is a logical volume manager for the Linux kernel

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Unable to create a flakey file system for testing

In Ubuntu 14.04 when I try: sudo dmsetup create test --table '0 123 flakey 1 0 /dev/loop0' (or the delay target), I get an error: device-mapper: reload ioctl on test failed: Invalid argument ...
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Live shrink lvm2 partition

I need to shrink the root partition to give more size to the boot partition. Can I resize/shrink the root lvm2 partition while using it from inside ubuntu?
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104 views

16.04 - Slow Kernel Boot (LVM issue)

After upgrading to Ubuntu 16.04 my system boot slow down consistently To analyze the cause I used this command. systemd-analyze plot > boot.xml google-chrome ./boot.xml I have found out ...
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Ubuntu Server issues with LVM

I need help with my Ubuntu Server 16.04. After reinstalling, I've noticed that some LVM2 units were not mounted, unlike the others that was in EXT4. I've followed the instructions in this link ...
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24 views

LVM problem on upgrade to 16.04

I upgraded a server from 15.10 to 16.04. All went smoothly and the machine appeared in good state. However, there seems to be a problem with LVM. I have one volume group with several volumes. lvs ...
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LVM Check Disk for Bad Sectors with RAID Mirroring to Fix Them?

I'm working on creating a very reliable, high-volume storage server on Ubuntu. Suppose you have a large 4 TB RAID1 set of 2 disks on LVM... At this size, I find it's more common to get a bad sector. ...
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119 views

Ubuntu Server 16.04 SW RAID1 LVM - broken RAID unable to boot

I have an old notebook hp nx9020. I want to use RAID1 so I have PCMCIA card - SATA controller and SATA drive on it. I am using this configuration for years (maybe 8 years) on Debian, later on Ubuntu ...
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37 views

How to Install Ubuntu Server without swap?

I have a 256GB solid state drive on which I plan on installing Xen and a few VMs. For the host (dom0), I want to use Ubuntu Server 16.04 and have it take up as little space as reasonably possible. ...
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How to extend existing partition?

I have added a new hard drive of 500gb size on my ubuntu 14.04 machine: chris@columbus:~$ sudo lshw -C disk *-disk description: SCSI Disk physical id: 0.0.0 bus info: scsi@2:0.0.0 logical name: /dev/...
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47 views

Does 16.04 default install overwrite only one or all harddisk? How about LVM?

I am planning to install Ubuntu 16.04 on the first disk of a system with multiple harddisks (and Ubuntu 14.04 in an encrypted LVM setup on the second disk). When I start the installation and am ...
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1answer
124 views

Ubuntu 16.04 booting to black screen with blinking cursor when adding additional hard drives

I recently updated my home Server to 16.04, undeniably the worst decision as I did not do it properly and just updated without backing up. Save all of the comments of back ups and what have you.I have ...
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15 views

All LVM enabled ubuntu installations have the same name

This guestion is not particularly new. The problem has been around for some time. Two "ubuntu-vg" partitions unable to mount due to naming clash Unable to mount an LVM Hard-drive after ...
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2answers
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Installed Ubuntu due to Windows 7 failure, need to save windows data drive

I am a first time Ubuntu user. I have installed Ubuntu due to my Windows 7 did not want to boot up (tried safe mode, command line, boot disk, boot from usb....etc. ) On my Windows 7 setup, I have ...
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1answer
112 views

Ubuntu will not boot into busybox for remote LUKS decryption using dropbear

I want to unlock an encrypted LVM at startup on a headless Ubuntu 16.04 server. This is a fairly fresh install. The only installs I have done are mate-desktop, xrdp, dropbear, and busybox. My client ...
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1answer
3k views

lvmetad is not active yet; using direct activation during sysinit

After install Lubuntu 16.04 show the following message during the boot: lvmetad is not active yet; using direct activation during sysinit /dev/mapper/lubuntu--vg-root: clean, 121574/7168000 files, ...
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1answer
68 views

Updating 14.04 to 16.04. Can I do it without impacting LVM?

I'm not a Linux whiz by any means. A few years ago I struggled through learning how to set up my 3 drives as one large drive using LVM. I'd just as soon not have to re-learn or risk the data that's ...
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14 views

How to Create a Mirrored Logical Drive

Sirs: I am trying to set up a Mirrored LVM using Ubuntu 15.10 desktop. I have managed to create a 25Tb logical drive which I would like to split up and mirror. From what I can read, it can be done, ...
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38 views

Ubuntu is broken after attempted LVM installation

I am trying to install LVM on an Ubuntu 14.04.4 machine, I have the system booted on /dev/sda1, and want to create an LVM partition on /dev/sda2. These are the steps I have followed: apt-get install ...
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15 views

Convert UEFI to legacy on encrypted disk

I've installed Xubuntu 16.04 with ticking the box "encrypt whole system" (basically LUKS on an LVM) with UEFI boot loader. Now I would like to switch to legacy booting. How can I reconfigure (?) GRUB ...
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30 views

Ubuntu saying “Volume group ubuntu-vg not present” before prompting for password

Ubuntu 16.04 isn't prompting for my luks password. I pressed ctrl+alt+F1, and the output says "Volume group ubuntu-vg not present." Of course not! I haven't been asked for my password! ubuntu-vg ...
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2answers
239 views

mount unknown filesystem type 'lvm2_member'

After upgrading from 14.04 to 16.06 my system failed. I have done a fresh install on a new drive, but that failed too... I have done another install but now when trying to mount my original drive ...
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No bootable device found in Ubuntu 14.04 with LVM encription (boot-repair-log attached)

Everything goes ok until the computer was blocked, I have restarted it and seen the errror No bootable device found With boot repair disk https://sourceforge.net/p/boot-repair-cd/home/Home/ on a live ...
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20 views

Ubuntu doesn't prompt for disk password when booting

I have an Arch partition installed on a LVM volume. It corresponding physical volume is in an encrypted partition (I used cryptsetup to do this). I installed Ubuntu Studio 15.10 in another logical ...
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67 views

How do you rename the volume group that contains the root volume in LVM?

I want to rename the volume group that my root volume is on. How can I do this?
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1answer
163 views

How to use snapshots with BTRFS in Ubuntu along with a separate HOME partition

My goal is to make snapshots while upgrading software. I installed Ubuntu in LVM partitioning with a separate HOME partition in another HDD formatted in XFS ("/" in BTRFS), but I'm trying to follow ...
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26 views

Problems with Maas and LVM's across mutiple drives

I'm trying to use ubuntu 14.04 MAAS to provision a system and am having some issues. The end goal I am after is: 1 x 64Gb SSD with a boot partition, a root partition, an lxc partition and a swap ...
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Cinder with LVM backend support for High Availability of Ubuntu openstack Liberty

Kindly help me ,whether Ubuntu openstack Liberty with 14.04, supports HA ? also did Cinder supports LVM backend for HA mode, kindly clarify
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784 views

Upgraded to 16.04 and now getting error message

After successfully upgraded to 16.04, I am now getting this message whilst booting lvmetad not active yet, using direct access
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1answer
441 views

Change size of /root patition in ubuntu 16.04 LVM

I installed ubuntu 16.04 with these settings "Erase Disk and install Ubuntu" with "Use LVM with the new Ubuntu installation" checked I have a 1tb hard drive and all that 1tb is now in the root ...
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46 views

Encrypted LVM partitioning

All I want to do is install an ubuntu based distro (Backbox 4.5.1) with the following configuration: 200mb primary partition for /boot encrypted LVM that contains: 30gb for / 8gb for /swap and the ...
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78 views

Using lvm and thin provisioning (thinpool) on a PV larger than 2T

Initial problem I'm trying to make use of lvm thin volumes on Trusty 14.04 with an external drive of 3TB as the PV for the volumegroup, but for some reason this fails and the thinpool gets somehow ...
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How to change /home to a new encrypted LVM partition

I installed Ubuntu 16.04 LTS and chose the option to remove all and set an encrypted LVM(I have a backup of all my data). I have 1 SSD(/dev/sda) and 1 HDD(/dev/sdb). What the installer did: It set ...
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1answer
58 views

Re-size boot drive partitions

I recently swapped out a smaller drive (320gb) for a larger one (500gb) because I was getting warnings about space. I had done all of the logical things I knew about to free up space and decided it ...
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1answer
26 views

What exactly is written to disk with an LVM basic install on 1T drive?

I need to reverse an LVM install to an Intel MAC 1T disk, if possible. Even if it's not possible, I still want to know what exactly is written to the disk after pvcreate, vgcreate and lvcreate are ...
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1answer
41 views

Are my files on an ext4 filesystem recoverable after removing the logical volume the filesystem was inside of?

Scenario: The other day I was trying to "unmount" some logical volumes so that I could close the LUKS partition they were inside. I accidentally uses lvremove thinking that was the right command to ...
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Restoring a newly created LVM partition to its previous state (physical)

My situation is a bit strange: I was running Ubuntu from a USB stick, then decided to install it alongside my windows 10 - I have 2 internal disks totaling 500gb of memory. At the menu for Installing ...
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1answer
41 views

Expand root partition into second hard drive

I don't have much space left in my root partition and would like to expand it onto a second hard drive. I installed the current system using LVM. I also encrypted my current installation when I ...
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49 views

Ubuntu 14.04 - lvextend fails while trying to resize the root file system

I have a laptop running Ubuntu 14.04. It has Samsung EVO 840 (1TB SSD) with 2 512GB partitions one belonging to the root volume group the other unallocated. The volume group has one of the above ...
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11 views

Migrate from logical volume to a physical drive

I have old Xen server which has machine created on a logical volume on the server, how can i migrate the machine to a physical system? Note: I can mount the logical volume via live CD
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1answer
73 views

mdadm raid 1 to raid 0 (or lvm…)

I currently have a machine with 2x3TB in software raid 1 (mdadm, Ubuntu 15.04). I would prefer to keep the data on the disks, but I can risk losing it. Are there any options to migrate without ...
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Are all partitions connected by the same password when setting up Ubuntu with LVM encryption?

Ive setup my desktop and encrypted the whole with LVM encryption. In addition to that I encrypted my home folder (this was by accident, but I am okay with it) Problem is that I didn't turn off my ...
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78 views

Can't format / delete locked partition from gparted? lvm

I can not format my hard drive for the life of me! I installed ubunutu server, and the installation failed. After re downloading the iso and running the installation again I could not format my ssd. ...
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Where is the install script source code for Ubuntu 14.04.4? Specifically LVM install

I need to know exactly what transpired upon passing through the install menu LVM route. I did not complete the installation but went back when I saw the disk over-write disaster. This is standard ...
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76 views

btrfs balance “No space left on device” with no success on any -dusage and -musage values

I have the following issue with btrfs balance start / on a btrfs on an 140 GB LVM with 4 physical device (in case that matters): sudo btrfs balance start / fails with ERROR: error during balancing '/...
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82 views

What and where are backup files for Ubuntu install of LVM installation? (MBR, VG, LV)

SUCCESS; WILL CLEAN THIS POST SOON..... HISTORY: Ubuntu Install Helps Destroy MAC I have a Mac with OSX and wanted to install Ubuntu Studio on a 40GB USB drive. By carelessness (and being a victim ...
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1answer
59 views

How to expand an encrypted ubuntu partition with LVM

I have an Ubuntu Mate Trusty installation on VB which I want to migrate to a physical laptop. By following this guide i was able to get it up and running. Only issue now is I want to expand the ...
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48 views

lvdisplay shows nothing

Disclaimer. I've already checked all possible questions on askubuntu on this matter and nothing solves my problem. I've recently reinstalled kubuntu on new disk. During installation old one was ...
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1answer
457 views

Ubuntu won't boot because of lvmetad

I've followed this tutorial to install Ubuntu 15.10: https://thesimplecomputer.info/full-disk-encryption-with-ubuntu After restarting my computer I got to the grub menu and chose Ubuntu. Shortly ...
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LVM mirrored reads goes to one drive instead of both

I've set up LVM mirror on two HDDs. The mirror works (and even has proven it's efficiency when drives failed two times). The problem is that all read operations goes to only one HDD, I see it with ...
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1answer
39 views

Install Ubuntu on custom LVM

I would like to install Ubuntu 14.04.4 LTS on my desktop. My device is SSD 500 Go. All the unit will be formatted and dedicated to Ubuntu. I'd like to use my device as follows : /dev/sda1 => /...