Questions tagged [lvm]
Logical Volume Manager for the Linux kernel manages disk drives and similar mass-storage devices, in particular large ones. "Volume" refers to a disk drive or partition thereof.
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What is LUKS and LVM2 PV in Gnome-Disk?
After a standard installation of Linux Mint Debian Edition 4, this is how the hard drive is partitioned according to gnome-disk:
Ext4 is the standard file system for current Linux systems AFAIK. But ...
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Check if LVM RAID1 mirrored LV is degraded
I have successfully installed Ubuntu to a mirrored LV (two copies in total).
I am also surprised to find the new mirroring is backed by MD by default
It's a Hyper-V virtual machine, and I want to ...
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How to move data between LVM LVs without physically rewriting it?
I want to move large volumes of data bewteen two LVM logical volumes (LVs) on the same physical volume. I use a SSD, so I don't want to write too much physically.
My understanding is that cp, mv and ...
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Remove encryption setup on a lvm/luks partition
On my linux machine, I have setup disk encryption using lvm/luks. However later I delete one of the partition and format it to NTFS in order to use it on Windows (as I have dual boot linux/win10).
...
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How to resize LVM /home and /usr partitions
I need to increase the space on my /usr partition, however I cannot shrink my /home partition, as the manager requires unmounting, which cannot happen while the system is running. I am running Debian ...
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Protect from access lvm encrypted partition from windows
This is my first question here, so forgive me if it isn't appropriate or too noobish.
I want to install Linux and Windows on my machine, but so that the linux partitions would be lvm encrypted and ...
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How to grow an LVM volume in the middle?
Let's say I created the following Linux LVM volume group and logical volumes:
$ sudo vgcreate vg1 /dev/sdb1
$ sudo lvcreate -L 10G -n lv1 vg1
$ sudo lvcreate -L 10G -n lv2 vg1
$ sudo lvcreate -L 10G -...
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Cloning HDD containing /boot and LVM to new HDD
I am trying to clone the drive below to a new drive of a bigger size:
sda 8:0 0 223.6G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└...
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Can't make LVM Cache to be persistent after system reboot
I've got LVM logical volume on top of MDADM RAID1 setup. I'm trying to add SSD device as Cache to this logical volume via:
vgextend dataVG /dev/sdd
lvcreate --type cache --cachemode writethrough -L ...
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Recover LVM to single drive
The situation
I have a volume group that spans four 1TB drives with six logical volumes. Three drives have full-drive physical volumes (no partitions), while the fourth drive contains /boot and a ...
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Linux Partition with SSD and HDD
I'm currently setting up my server and I don't get how to choose Disk 1 and Disk 2 for the partition. vg0 should be the HDD and vg1 the ssd.
Maybe you can help me how to set up such in this syntax.
...
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how to recover pv and lvm with no lvm export?
hi i have a server which its first hdd was broken , the server has 2 HDD ,
the first hdd crashed . datacenter replaced it for me with a new hdd.
the second hdd use to have 2 pv on 2 partitions ,
...
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resize a volume
I would like to increase lv_home to 20G and increase lv_root to 120G.
In VMware I extended the harddrive to 200G. You can see that below in .host:/
Filesystem Size Used Avail Use% Mounted ...
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How to remove multiple word from grep command in AIX
I am trying to check disks used for mirror in lvs. currently I am using "lslv -m ulv" command but to check for multiple lvs is difficult. I guess there should be some option in grep to exclude ...
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How do I install Ubuntu 10.04 with full disk encryption alongside other operating systems?
I always used the Full Disk Encryption option of the alternate installer, but now I need to keep another OS running in the first partition but that option seems only to be able to use the whole disk. ...
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Gparted: Copy Greyed Out
I booted my system to a gparted linux live CD and I have two partitions:
/dev/sda1
/dev/sda2
I want to move both of them to my new physical hard drive (called /dev/sdb). When I right click on /dev/...
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Creating LVM partition on SD card fails with "device not found"
I'm trying to create a single LVM volume on my SD card, using Ubuntu Netbook Remix. The SD card is at /dev/mmcblk0. So far, I've used fdisk to create a partition (type 8e - Linux LVM) on the device. ...
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Recover a RAID5 logical volume with two failed devices
before bashing me I assure you I know a RAID5 devices can survive only one drive failure. So... why am I asking this?
I had two disks disconnected simultaneously from my machine, so raid failed. Also ...
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How to update LV UUID, Devices file not found
A recent BIOS update has jumbled things in my LVM but I'm not sure what...
[root@localhost ~]# pvscan
Devices file sys_wwid naa.57c35481cc13b195 PVID IpYMVDa5eXTqYQuLzXc8GukoAVUOK32u last seen on /...
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Mount an active logical volume results in special device does not exist
I'm trying to get data from an Ubuntu server disk that got it's boot partition faulted.
On the disk there is a logical volume that I'm trying to access through WSL2 on Windows 11.
I can activate the ...
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1
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Creating bootable windows image from a logical volume
Recently I have taken raw image (using dd) of a logical drive of my laptop running windows 10. I would like to convert this into a bootable Virtual Disk so that live analysis of OS can be performed. ...
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mdadm RAID underlaying an LVM gone after reboot
The main part of my problem ha been discussed here the other time...
... but I have two special questions that haven't been answered before.
The Situation:
I upgraded my hardware, installing two new ...
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1
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Removing lvm cache volume results in "Unknown feature in status" output
Recently I've replaced the HDDs in a RAID 1 mdadm array due to a lack of space.
The structure is as follows:
- 2 HDD in RAID 1 (Originally 2x2TB, now 2x4TB)
- LVM
- Swap
- BTRFS
- 3 ...
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Luks/LVM disk encryption: how to change size
I installed Linux Mint Cinnamon 19.1 and enabled LUKS. It automatically created the following set-up:
[~]: lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
nvme0n1 259:...
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0
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Ubuntu LVM on LUKS UEFI
I want to install Ubuntu on LVM on LUKS in UEFI mode. An UEFI partition, another encrypted partition for /boot and again an encrypted partition for system.
My question is:
How can I add hooks to ...
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0
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SSD overprovisioning and encrypted LVM
I have a SSD with an encrypted (cryptsetup/luks) LVM partition. Since I'm not yet into that ssd stuff I offhandedly left approx. 10% unpartitioned for overprovisioning. Just because I was told that ...
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RAID migration w/ MegaRAID SAS Raid controller
I have a workstation with 8 drive bays and a MegaRAID SAS-3 3108 raid controller. 5 of the 8 bays are populated, and it is configured as a RAID5.
I need to expand my disk-space, and putting in 3 more ...
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Can Fedora 28 be installed from an ISO file on an LVM partition?
I am attempting a medialess installation of Fedora 28, using an ISO image stored on an LVM partition.
After struggling for a while I found this post which helped a lot, but I am now encountering the ...
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LVM2 Raid 1 "needs refresh", but does not refresh or scrub
I'm running a LVM RAID 1 on two disks. Here is what lvs tells my about my VG:
root@picard:~# lvs -a -o +devices,lv_health_status,raid_sync_action,raid_mismatch_count
/run/lvm/lvmetad.socket: ...
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lvcreate vg0 not found
I am looking at the mongodb documentation for creating a logical volume with lvcreate.
lvcreate --size 100M --snapshot --name mdb-snap01 /dev/vg0/mongodb
The example is the output is:
Using ...
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Why /home/.ecryptfs is missing inside dd image of LVM partition?
Disk Copy
2 month ago I backed up the 128G HDD of an old laptop with Ubuntu 16.04 on it, using dd:
# sudo dd if=/dev/sda of=/media/victor/blackWD/ss9backup.img conv=noerror bs=128k status=progress
...
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Any good reason to slice a LUN and create several VGs instead of create just one VG?
I'm the new administrator for a Linux RHEL box which uses a fibre channel 1-TB LUN disk.
I find amazing the following: this LUN has been sliced by means of GNU parted(1), then each slice is turned ...
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Where is the speedup effect on using lvm2-cache
I recently discovered that LVM2 supports now caching: http://man7.org/linux/man-pages/man7/lvmcache.7.html
The cache logical volume type uses a small and fast LV to improve the performance of a ...
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Redundancy: LVM+mdadm or LVM internal RAID
The task is to create LVM storage for virtual machine images. So LVM will be used in any case.
There are two ways LVM providing redundancy:
block mirroring
lvcreate -m 1 --mirrorlog mirrored -n ...
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/etc/init.d/lvm2 script not executed during startup
On startup, I want the /etc/init.d/lvm2 script shipped with Debian squeeze to be executed. I ran update-rc.d lvm2 enable and checked that the symlinks are created in the /etc/rcX.d folders:
# find /...
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Having trouble with EXT4 on LVM on software RAID 5 (corruption)
Here's the quick and dirty of my problem. I'm using Lubuntu 12.04, Xubuntu 12.04 and plain Ubuntu 12.04. Tried with generic kernels 3.2.0-25 and 3.2.0-26. This issue persists on all 3 variants which ...
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vgscan not finding groups after an unexpected reboot
I have an LVM partition on one of my disks:
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
...
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1
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Linux command line partition manager with LVM
I need to write a program to format SD card with, FAT boot, ext4 and swap partitions.
I would like the ext4 to use LVM. Ideally there would be scope for mdadm.
I need help finding a command line ...
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Extending available space in LVM using LUKS
I have one volume group consisting of lv_root, lv_swap and lv_home. I want to increase the space available to lv_home by adding an extra hard drive.
Can this be done while maintaining a LUKS-based ...
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lvm vgdisplay shows 0 free extents, while df shows freespace
My vgdisplay shows 0 PE's. But if i mount the volume and run df -h i get loads of free space. Is this something to do with the way lvm allocates extents? I don't get similar behaviour from my other vg....
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How to mount USB disk with LVM/LUKS crypted volumes on a Mac? [duplicate]
Possible Duplicate:
How to mount an encrypted ext3 filesystem under OS X?
I have a USB disk that I've partitioned with LVM and encrypted some of the volumes with LUKS.
This is all Linux/Device ...
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1
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How does Ubuntu LVM encryption work?
While installing Ubuntu Server, during the partition step one of the options is "use entire disk and set up encrypted LVM" (see screenshots). Can anyone explain - or at least point to the necessary ...
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Improve dd restore speed
Just now after waiting about 33 hours I finished restoring hard disk dev.pm.m3 resided on the LVM partition from previosly created zipped dump 5_dev.pm.m3_2012-11-03.gz.
Here is its status:
gzip -dc ...
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How do I access lvm disk with same VG name as current?
I reloaded my PC onto a new disk then put the old disk back in the PC to recover old files. I kept the same PC name. The OS setup routine appears to have used my PC name (stiffler) to create the LVM ...
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LVM Extend... not sure the filesystem
I would like to extend my LVM partition. First I did
lvextend -L +100G /dev/server/home
Now I still have to extend the filesystem. The tutorials tell me to use resize2fs, but that only works for ...
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2
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Is there something analogue to LVM logical volumes in BTRFS?
I like the way BTRFS does snapshots and subvolumes but it does not feel right to use LVM just because I want my logical volume to be of certain size.
Is there something analogue to LVM logical ...
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3
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Reverting pvcreate on a Windows System Recovery partition
As the title says I incorrectly ran:
pvcreate /dev/sdb1
Where sdb1 was a Windows System Reserved partition. Now I know I could probably use the Windows CD to recreate it, but is there a way to do it ...
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Migrating away from LVM
I have an Ubuntu home media server setup with 4.5TB split across a few hard-drives (1x3TB, 2x1TB) and I'm using LVM2 to manage the volumes. I have recently added a 60GB SSD to my server, and I wish to ...
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Can I use Logical Volume Management when I have a Windows partition? And how safe is it?
I recently found out about Logical Volume Management. Seems interesting, but I have a couple of questions:
Does it matter if I have a Windows partition? It seems that LVM is bound to the Linux kernel,...
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1
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Does multiple snapshots influence the performance?
My desktop system(Kubuntu-20.04.4, with LVM2 root-fs) need to be frequently adjusted the configurations, but some configuration would be fault.
I take a new LVM2 snapshot of root fs, before every time ...