Unable to run command lvdisplay

Ask Fedora
1

Currently trying to allocate more swap space to my system, and I need to use the command lvdisplay to do so, however when I try and run the command I am presented with this error:
WARNING: Running as a non-root user. Functionality may be unavailable.
/run/lock/lvm/P_global:aux: open failed: Permission denied
/dev/mapper/control: open failed: Permission denied
Failure to communicate with kernel device-mapper driver.
Incompatible libdevmapper 1.02.212 (2025-12-15) and kernel driver (unknown version).

I tried updating my system, this issue was happening in fedora version 43 but I have since updated to fedora 44 and this problem still persists. I am wondering if it is an issue with the version of “libdevmapper” but I cant find much online about it that has helped me.
Any help would be appreciated!

2

and what happens when you run it with sudo?

3

asks me for my password, and when I input it, it says it took 4 seconds but nothing happens

4

What are you expecting it to output? I also get nothing but that’s expected as I don’t have any logical volumes display.

I do note the man page states:

lvs(8) is a preferred alternative that shows the same information and more, using a more compact and configurable output format.

same output from lvs?

5

I was expecting something like this, I already have 7.5gb of swap space so I would expect it to say something right? Or i guess not. I tried adding more swap space using dd but I saw that may be a bad idea + it didnt work for some reason.

"# lvdisplay
— Logical volume —
LV Name /dev/vg_fed2/lv_root
VG Name vg_fed2
LV UUID XZ1Da9-1OdZ-em3Z-4Dfo-TqZl-V6WI-an3Ahq
LV Write Access read/write
LV Status available

open 1

LV Size 13.56 GiB
Current LE 434
Segments 1
Allocation inherit
Read ahead sectors auto

  • currently set to 256
    Block device 253:0

— Logical volume —
LV Name /dev/vg_fed2/lv_swap
VG Name vg_fed2
LV UUID 94ltyQ-aGe2-271U-tiZP-Xcuo-x8wm-E0rY5Z
LV Write Access read/write
LV Status available

open 1

LV Size 1.94 GiB
Current LE 62
Segments 1
Allocation inherit
Read ahead sectors auto

  • currently set to 256
    Block device 253:1
6

Also, yes, same output from lvs

7

I get the same output myself. Primarily because I’m not using the Logical Volume Manager disk layout.

Please post the outputs of sudo vgdisplay, sudo lvdisplay and lsblk -f so we can see your LVM and disk layout. This is what I see on my system:

I just installed a new VM with LVM and it looks like this:

$ sudo vgdisplay
— Volume group —
VG Name kickertest-root
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 45.41 GiB
PE Size 4.00 MiB
Total PE 11625
Alloc PE / Size 8704 / 34.00 GiB
Free PE / Size 2921 / 11.41 GiB
VG UUID ArO9y5-aHec-26XF-dT5B-u5RN-3AEG-Se1sPK

$ sudo lvdisplay
— Logical volume —
LV Path                /dev/kickertest-root/swap
LV Name                swap
VG Name                kickertest-root
LV UUID                WXeZ2n-eGvx-rUBU-FJMi-swWG-OTwe-EzIpKi
LV Write Access        read/write
LV Creation host, time kickertest.loveglide.com, 2026-06-11 20:34:23 -0400
LV Status              available

open                 1

LV Size                4.00 GiB
Current LE             1024
Segments               1
Allocation             inherit
Read ahead sectors     auto

currently set to     256
Block device           252:1

— Logical volume —
LV Path                /dev/kickertest-root/root
LV Name                root
VG Name                kickertest-root
LV UUID                Qiy3fO-ksWD-cMGX-jfBp-J5Md-xm61-0lfZPF
LV Write Access        read/write
LV Creation host, time kickertest.loveglide.com, 2026-06-11 20:34:24 -0400
LV Status              available

open                 1

LV Size                30.00 GiB
Current LE             7680
Segments               1
Allocation             inherit
Read ahead sectors     auto

currently set to     256
Block device           252:0

$ lsblk -f
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS
sda
|-sda1 vfat FAT32 3732-4E1E 578.8M 3% /boot/efi
|-sda2 ext4 1.0 boot 08cf6bed-5c0e-462e-870b-340b3d69f257 1.5G 16% /boot
-sda3 LVM2_member LVM2 001 IZAf8c-wFSb-MmcP-Wx4R-s849-YXSK-7Q6TWj |-kickertest--root-root ext4 1.0 rootlv 7afc5c08-5592-4805-89b6-d9721962e767 26G 6% / -kickertest–root-swap swap 1 swaplv ae807d9e-d918-49e4-8194-7b15843b70b0 [SWAP]

8

Seem you are not using Logical Volumes on that system.
I also see no output on my desktop that does not use LVM.

What does lsblk report?

For example on my system with LVM I see this:

sdc                                      8:32   0   7.3T  0 disk
└─sdc1                                   8:33   0   7.3T  0 part
  └─md127                                9:127  0   7.3T  0 raid1
    └─crypt_shares                     252:4    0   7.3T  0 crypt
      ├─fender_shares-Media            252:5    0   320G  0 lvm   /shared/Media
      ├─fender_shares-Downloads        252:6    0   180G  0 lvm   /shared/Downloads