LVM is a logical volume manager for the Linux kernel

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Strange things happen after lvreduce of root?

I am using 16.04 LTS. I set up lvm as part of installation. Unfortunately, it made the root logical volume occupy all the disk space, which precluded making volumes for snapshots. So, I booted with ...
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14 views

Ubuntu 16.04.1 boot error

While booting Ubuntu, an error message shows on my laptop: lvmetad is not active yet, using direct activation during sysinit /dev/mapper/ubuntu--vg-root, clean xxxxx/xxxxx files , xxxx/xxxx blocks. ...
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19 views

How can I access files from Linux LVM?

I just migrated from Windows 10 to Ubuntu 16. While installing Ubuntu I checked for having Linux LVM and since then I'm facing a big problem of accessing the data from the drives I had in Windows. ...
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33 views

Ubuntu 16.04 + LVM won't install to HW RAID; “Error! Partition(s) … written but … unable to inform the kernel”

I've had consistent problems installing Ubuntu 16.04 with LVM, with the live CD, to a hardware RAID-1, in a former Windows XP sever. Multiple attempts fail immediately after repartitioning (as a new ...
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15 views

Recover RAID/LVM disks from Crash-Reinstall

I had a Kubuntu system, probably 12-04, with / on an SSD and /usr and /home on separate partitions on 4 1TB hard disks, with the partitions RAIDed together. I've just brought the system back up, the ...
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21 views

How to use existing volume groups and logical volumes (LVM)? For Ubuntu/Kubuntu 16.04

In the past, if we wanted to install in existing logical volumes, we had to use the alternate installer iso. But now that iso no longer exists, how can we use existing volume groups/logical volumes?
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52 views

ubuntu 16.04LTS freezing system + TTY

I'm running Lenovo YOGA 300-IBY, Ubuntu 16.04LTS here is my first problem: whenever I open my TTY ctrl+alt+F[1-6], there are lines: lvmetad is not active yet, using direct activation during sysinit /...
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19 views

LVM Full disk encryption on two disks with single passphrase

I have two disks, and want to have all storage managed by LVM and fully encrypted. However, the Ubuntu installer only offers the choice to set this up for one of the disks. How can I set it up so ALL ...
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1answer
20 views

Docker fails to start if configured to use devicemapper with direct-lvm

On Ubuntu 16.04 Docker fails to start on system startup if Docker was configured to use devicemapper as storage driver with direct-lvm as storage-pool. The following errors occur #$ sudo systemctl ...
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initramfs-tools doesn't have a root folder

I'm trying to setup remote ssh to an encrypted lvm server following the instructions here. But they assume there are files in /etc/initramfs-tools/root but my brand new 16.04 install has not root ...
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LVM2 snapshot merge error report: “lvm crashed with SIGSEGV in lv_is_merging_cow()”

some setup info: Xubuntu 14.04.4 LTS SSD is only drive (/dev/sda) /dev/sda1 is boot partition /dev/sda5 is encrypted LUKS partition logical volumes sit on top of the LUKS partition If I create ...
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18 views

LVM encrypted LUKS on SSD - issue reverting to snapshots

Ubuntu 14.04.4 LTS SSD is only drive (/dev/sda) /dev/sda1 is boot partition /dev/sda5 is encrypted LUKS partition logical volumes sit on top of the LUKS partition Reverting to snapshots seems to ...
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30 views

boot hangs and needs manual 'lvm vgchange -ay'

My machine has two identical disks in mirror mode using (software) raid and then lvm. When rebooting, eg after a power loss, the machine fails to recognise the lvm partition and drops into an ...
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77 views

ubuntu 16.04 lvm : how to resize /root and add another logical volume without data loss

Ubuntu 16.04 installed with these settings "Erase Disk and install Ubuntu" with "Use LVM with the new Ubuntu installation". Now have 3 partitions /dev/sda1 : mounted as /boot/efi, /dev/sda2 : Linux ...
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1answer
28 views

Authoritative resource for: Error getting authority: Error initializing authority: Could not connect: No such file or directory (g-io-error-quark, 1)

My error is: Error getting authority: Error initializing authority: Could not connect: No such file or directory (g-io-error-quark, 1) This is for Kubuntu 14.04 with LVM and UEFI. The system will ...
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49 views

Cannot mount LVM Ubuntu 16.04

I'm kinda new to this LVM thing. I have a hard disk that I need to mount in order to recover some important files. The hard disk was originally from a Centrix Xenserver. Here's the output of fdisk -l ...
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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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12 views

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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135 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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32 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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138 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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48 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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56 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
176 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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16 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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1answer
30 views

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
143 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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6k 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
77 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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15 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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39 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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17 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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32 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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741 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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39 views

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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24 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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103 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
181 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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803 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
531 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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47 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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116 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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72 views

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
59 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
32 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 ...