LVM is a logical volume manager for the Linux kernel

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Manage Snapshots

So Ubuntu supports LVM. This in turn supports creating and restoring snapshots of the hard drive. Coming from Windows, this is a highly useful feature for restoring the system to a previous point (In ...
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I don't know how to dual-boot Lubuntu 14.04

Quite simply, I don't know what I'm doing and I've come to the screen where it has the options: Erase Disk and Install Lubuntu, Encrypt, Use LVM or Something else. I want to keep my windows 7, and ...
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Ubuntu Server: SSD + existing LVM disks

I'm currently using the following setup for a home NAS server: - Debian installation on a 150 GB HDD (with LVM) - A logical volume of 4GB that consists of 2 2TB disks I would like to replace the HDD ...
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Cannot mount partition with cryptsetup

I have a spare drive. I've attempted to format it and encrypt it. But even though the process appears to succeed and I can open the crypt, I cannot mount the newly mapped device. Here is the output of ...
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System backup for testing new apps/settings

I am new to linux, and have been installing ubuntu again and again because I mess up something while trying different set-ups. I would like to have an incremental snapshot of my system so that I can ...
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48 views

Grub2: Disk not found trying to boot LVM partition on raid1 set

I'm having difficulty booting from an LVM logical volume which is stored on a raid-1 physical volume. Using Ubuntu 13.10 and Grub2 2.00. The setup is that /boot/grub is on a physical raid-1 set. ...
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15 views

How can I resize an LVM partition? [duplicate]

I have problems with system update because my boot disk is too small, but I don't know how to increase this. I have tried gparted live from a USB drive, but I can not reduce the size of the other ...
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23 views

Issue with encrypted lvm during setup

How can i access a different form of partitioning, like in old alternate cd's or debian's installer, where i can choose to create a partition, make it encrypted, then add a LVM group to that encrypted ...
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/dev/mapper/cryptswap1 is not ready yet or not present

I get this error whenever I start my Lubuntu 13.10 installation: /dev/mapper/cryptswap1 is not ready yet or not present It asks me, if I want to skip, manually repair, or wait. I chose the option; ...
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64 views

Cannot decrypt hardrive. Password not accepted

I have been tackling this for at least 5 days now. Initially I couldn't get Ubuntu to recognise my already installed partition LVM with an Arch, Home, and Swap logical volume. I have now got Ubuntu ...
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23 views

“Device not found or ignored” when creating physical volume with bcache

I'm attempting to create an LVM volume on a bcache device, but getting "device not found or recognized", despite lsblk clearly showing the device, and bcache state showing "clean". OS is Ubuntu 13.10 ...
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How to partition for a successfull boot with raid5 + lvm +encryption

I have been trying to make this setup work for several days. The system never boots... When I do a setup without the software raid I can get it to work. How should I set up my system partition to be ...
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Create LVM without data loss?

I have three hard drives, one for the OS and two for media. All drives are currently on Ext4 partitions. One of the media drives is full, I'd like to use an LVM to merge the two media drives into one. ...
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Different behavior of 2 encrypted LVMs

recently i created ext4 on top of luks on top of lvm. about 20gb. i also have similar configuration (900gb) created long time ago - i don't remember how exactly i created it. both are not mounted on ...
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How is Trim enabled?

I have heard, that Ubuntu 14.04 will have Trim enabled by default. How will this be done? By adding a discards option to the ext4 mount options or by running a cron-job? Will the default options for ...
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44 views

Destroyed windows partition

My sister was trying to install ubuntu on her laptop, on partitioning time she chose the automatic resize option, the problem is that now her windows partition is lost. I'm not sure of the options ...
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1answer
18 views

Howto make “update-grub” to ignore guest volumes on a KVM Hypervisor?

I have some Ubuntus acting as a KVM Hypervisor and, every time I run "update-grub" on those servers, it takes a lot of time to finish and makes too much disk IO. I'm seeing that it tries to find ...
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How to increase the size of LVM partition on headless system?

I have a 320GB HDD and becoming full, and got a new 1TB HDD and wished to migrate everything to it. I am using LVM. I cloned the hard disk using dd, and extended /dev/sda2 to maximum available ...
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Move a system from LVM to standard partitions

I need to move a system which uses LVM to a system which uses normal partitions. I created the partitions on the new hard drive and I copied all the content of the root and boot partition to the new ...
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72 views

Unlocking Encrypted Root (LUKS on LVM) with “hidden” USB Keyfile

I have a Ubuntu Server 13.10 machine. Its root partition is encrypted with LUKS, which is then stored in a logical volume. On boot, the LV is mounted and then cryptsetup requests my passphrase; once ...
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33 views

Booting from LVM partition

I screwed up when I installed my machine awhile back and put the / partition (including /boot) into the LVM. While the machine will eventually boot, it won't boot non-interactively. For whatever ...
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Server 13.10, Raid1, LVM, EFI booting on 2nd disk

I've read a whole bunch of posts of trying to get your Raid1 to boot up on the second disk if the first one failed. Nothing has failed yet, but I'm trying to test my setup. 2nd drive comes up with ...
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43 views

LUKS and LVM install: no boot (gave up waiting for root device)

I just finished installing 12.04 on my system, configuring it with LUKS and LVM. I can open the encrypted position just fine in a recovery disk, but I just can't seem to get it to boot. It waits ...
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How to extend logical volume swap space to atleast 64 GB on SSD

My current configuration of physical volumes is as follows. --- Physical volume --- PV Name /dev/sda5 VG Name vgssd PV Size 190.89 GiB / not usable ...
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How to remove encryption from volume during installation

I'm currently in the process of installing Ubuntu Server 12.04 onto a fresh build. I have two 3TB hard drives that I'd like to run in software RAID 1, and was following this tutorial. During ...
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Help, installed Ubuntu with LVM2 and Raid1 - Mystery of the time traveling computer

I am a relative Linux novice, so please bear with me. A few years a go, I installed Ubuntu Server 11 to act as household web/email/file server. I had decided to move on from a Windows Server ...
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Help recovering eCryptfs user data

Ubuntu 13.10 x64 Chose LVM partitioning when I installed Here's the story from the beginning... I had a problem with the fglrx drivers preventing unity from starting correctly so I tried to repair ...
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40 views

Format USB stick using LVM?

Is it possible to format a USB stick using LVM? I am interested in LVM because apparently it allows you to create instantaneous snapshots for backup purposes.
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31 views

Resizing Ubuntu 13.10 partitions

I installed Ubuntu 13.10 to this device ( picture below ) , and it has the following partitions on the picture below, i can't resize the extended partition, i want to create a NTFS partition on same ...
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Lv not showing correct in fdisk

I am working on a project with iscsi to create a iscsi-target and initiator. Right now i made a logical volume which looks like this: But when I do fdisk -l it shows: The problem is why does it ...
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Ubuntu partitions after installation

I installed Ubuntu 13.10 to this device ( picture below ) , and it has the following partitions on the image below, i can't resize the extended partition, i want to create a NTFS partition on same ...
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2answers
93 views

What are the advantages/disadvantages of the new encryption feature in ubuntu 13.10

I'm in the middle of installing 13.10 and the Ubuntu page I was following on how to install from a USB stick says nothing about these two choices (on the Installation type screen): 1) Encrypt the ...
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Help on resizing my LVM partitions

I need help on resize two LVM partitions as I'm afraid of loosing data. I'm using Ubuntu Server 12.04 headless mode. LVS: root@server:/# lvs LV VG Attr LSize Origin Snap% Move Log ...
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Mounting /opt/mongo on new partition or resize primary partition on VMWare server

i was assigned to add space to our virtual machine running ubutnu 12.04 LTS. Our provider increased disk space in VMWare and i now need to expand it from the system. The server has only one primary ...
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Why I cannot format the partition with Ubuntu?

I have a problam with formating my Ubuntu partition. I installed Ubuntu yesterday, after the succesful instalation i noticed that i have lost every data on my disk. Today I try to reinstall windows ...
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Partition the disk Without rebooting

How to extend the partition table Without rebooting? The change should be informed to kernel without rebooting.
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Booting monolithic kernel: cannot find root fs by UUID

I have built a monolithic kernel with the grsecurity patch, since I don't need many modules for the system and I need to optimize space. When trying to boot the new kernel, it yields a busybox shell, ...
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Setting up LVM Snapshot as a backup/restore point in ubuntu [closed]

since I could not find how to post this as a blog/post/tutorial in AskUbuntu.. I decided on posting it here, were it is best exposed anyhow ... Setting up LVM Snapshot as a backup/restore point in ...
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1answer
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Is it safe to disable resize_inode on ext4 FS?

I have 2TB spanned LVM ext4 volume which contains large and mostly static files. With "static" I mean they usualy don't change in time. The volume is 99% full, and adding new files becomes very slow ...
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“ubuntu” shows up in boot menu, but my laptop keep telling me that “No OS detected”

I tried to intall ubuntu 13.10 on my Acer Aspire 4750 yesterday, and I think I make a mistake choosing that "LVM" option. Now I am facing these : "ubuntu" option now shows up in my boot menu. ...
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How to clean /dev/nbd device that makes processes to hang?

I am using devstack on Ubuntu 13.10. Once in a while lvs hangs when cleaning the stack. After some investigation, I found that the issue seems to come from a "corrupted" nbd device. Any process that ...
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Logical Volume, Physical Volume and Volume Groups

Please can someone explain to me the meaning of Logical Volume, Physical Volume and Volume Groups? Of what importance and advantage are they in linux?
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How to map /dev/mapper

My actual LVM's are like: 1.LV Name /dev/VolGroup/lv_root VG Name VolGroup 2.LV Name /dev/VolGroup/lv_swap VG Name VolGroup But in ...
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1answer
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Using LVM with two hard drives, 1 Solid State

I am setting up Ubuntu and just got to the option about using LVM to partition the hard drives. My understanding is that if I do this Ubuntu will be able to treat the two drives as one. That's great, ...
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Shrinking logical partition

Im trying to resize(shrink) my ubuntu partition. Ive done the following things: -checked GParted which returns 2 partitions: one which says extended under filesystem, which encases the second volume ...
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100 views

Ubuntu 12.04 Unable to automatically remove LVM data

![Unable to automatically remove LVM data][1] I am trying to install ubuntu 12.04 via preceed config onto Dell PowerEdge R710. I had RedHat installed on the box then I tried installing ubuntu 12.04, ...
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Ubuntu Server 12.04: Boot hangs with error "udevd[538] inotify_add_watch(…) failed: invalid argument

I'm currently faced with the following situation: when rebooting a Ubuntu 12.04 LTS server after updating (it ran perfectly for a year or so, I updated it around two months ago and rebooted with no ...
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263 views

Lubuntu 13.10 Alternate install with LUKS LVM partition “adding additional” step failed

Setting up a dual boot Lubuntu and Windows 7 system on an old Gateway netbook. There are 3 existing Windows partitions, and during the Lubuntu install, I created two logical partitions, a small one ...
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Combine two hard drives

I have a PC with 2 physical hard drives, each is 500 GB (sda and sdb) I'd like to combine them in one large hard drive (1T). I couldn't find a clear approach on how to do it. I tried LVM with no ...
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Safe to upgrade with encrypted disks

I am running Ubuntu 13.04 Server and I have it set up with LVM and encrypted disks. Is it safe to 'do-release-upgrade' or will the disk encryption interfere with the process?