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Arnob
Arnob

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Rename The Filesystem Volume Name

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Managing storage with LVM (Logical Volume Manager) is a common task for Linux administrators. This guide walks through the process of identifying existing volume groups and logical volumes, renaming an LVM logical volume, mounting it to the appropriate directory, and verifying whether it is currently mounted. You’ll learn how to use tools such as lvs, lsblk, findmnt, mount, and df to inspect and manage your storage configuration safely on Rocky Linux 9. Whether you're reorganizing storage layouts or troubleshooting mount issues, this tutorial provides practical commands and examples to help you manage LVM volumes efficiently.

First, check the exact LV name. In your screenshot, the LV path is:

/dev/mapper/vg_arn-srv
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This means:

  • VG = vg_arn
  • LV = srv

If you want to rename the logical volume from srv to lv_srv:

vg_arn-lv_srv
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and it is currently:

vg_arn-srv
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then run:

lvrename vg_arn srv lv_srv
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After renaming, rebuild initramfs (recommended on system disks):

dracut -f
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Then verify:

lvs
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Please paste the output of:

lvs
vgs
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If you’ve renamed the LV, you don’t “mount the LV name” directly — you mount the filesystem on it.

First, check that the LV exists:

lvs
lsblk -f
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output:

LV      VG      Attr
lv_srv  vg_arn  -wi-ao----
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Create the mount point if needed:

mkdir -p /srv
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Mount it:

mount /dev/vg_arn/lv_srv /srv
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or

mount /dev/mapper/vg_arn-lv_srv /srv
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Verify:

df -h
mount | grep srv
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Output:

[root@localhost ~]# mount | grep srv
/dev/mapper/vg_arn-lv_srv on /srv type xfs (rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)
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To make it permanent, get the UUID:

blkid /dev/vg_arn/lv_srv
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Example:

UUID="12345678-abcd-efgh-ijkl-1234567890ab"
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Add to /etc/fstab:

nano /etc/fstab
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UUID=12345678-abcd-efgh-ijkl-1234567890ab  /srv  xfs  defaults  0 0
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If need to rename the mapper

vi /etc/fstab
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/dev/mapper/vg_arn-lv_root /                      xfs     defaults        0 0
UUID=6c7e49fb-359f-4cc8-8bc5-f1d50a4e6172 /boot   xfs     defaults        0 0
/dev/mapper/vg_arn-srv  /srv                      xfs     defaults        0 0
/dev/mapper/vg_arn-lv_tmp /tmp                    xfs     defaults        0 0
/dev/mapper/vg_arn-lv_var /var                    xfs     defaults        0 0
/dev/mapper/vg_arn-lv_swap none                   swap    defaults        0 0
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Rename the mapper

/dev/mapper/vg_arn-lv_root /                       xfs     defaults        0 0
UUID=6c7e49fb-359f-4cc8-8bc5-f1d50a4e6172 /boot    xfs     defaults        0 0
/dev/mapper/vg_arn-lv_srv  /srv                    xfs     defaults        0 0
/dev/mapper/vg_arn-lv_tmp /tmp                     xfs     defaults        0 0
/dev/mapper/vg_arn-lv_var /var                     xfs     defaults        0 0
/dev/mapper/vg_arn-lv_swap none                    swap    defaults        0 0
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Then test:

mount -a
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If this is the LV shown in your screenshot (lv_srv), it should already be mounted on /srv. Check:

df -h | grep srv
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Output:

[root@localhost ~]# df -h | grep srv
/dev/mapper/vg_arn-lv_srv   960M   39M  922M   5% /srv
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Now, verify the mount

findmnt /srv
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If mounted, you’ll see something like:

[root@localhost ~]# findmnt /srv
TARGET SOURCE                    FSTYPE OPTIONS
/srv   /dev/mapper/vg_arn-lv_srv xfs    rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota
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If nothing is returned, it’s not mounted.

Thanks

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