[CentOS] Centos7: Mount problem (Unit mnt-bk\x2dbenvet\x2d01.mount is bound to inactive unit dev-disk-by\x2dlabel-bk\x2dbenvet\x2d01.device. Stopping, too.

Fri Apr 1 12:03:22 UTC 2016
Dario Lesca <d.lesca at solinos.it>

On a server Centos 7.2  I insert my 1Tb usb disk and run

sudo mount LABEL=bk-benvet-01 /mnt/bk-benvet-01

the command seem to work but nothing is mounted

Into log I see this issue:

> apr 01 13:49:06 s-virt.dom.loc kernel: XFS (sdb1): Mounting V4 Filesystem
> apr 01 13:49:06 s-virt.dom.loc kernel: XFS (sdb1): Ending clean mount
> apr 01 13:49:06 s-virt.dom.loc systemd[1]: Unit mnt-bk\x2dbenvet\x2d01.mount is bound to inactive unit dev-disk-by\x2dlabel-bk\x2dbenvet\x2d01.device. Stopping, too.
> apr 01 13:49:06 s-virt.dom.loc systemd[1]: Unmounting /mnt/bk-benvet-01...
> apr 01 13:49:06 s-virt.dom.loc kernel: XFS (sdb1): Unmounting Filesystem
> apr 01 13:49:06 s-virt.dom.loc systemd[1]: Unmounted /mnt/bk-benvet-01.

I have try this:

> [root at s-virt ~]# systemctl start dev-disk-by\x2dlabel-bk\x2dbenvet\x2d01.device
> Job for dev-disk-byx2dlabel-bkx2dbenvetx2d01.device timed out.
> [root at s-virt ~]# systemctl status dev-disk-by\x2dlabel-bk\x2dbenvet\x2d01.device
> ● dev-disk-byx2dlabel-bkx2dbenvetx2d01.device
>    Loaded: loaded
>    Active: inactive (dead)
> 
> apr 01 13:52:36 s-virt.vettorello.loc systemd[1]: Job dev-disk-byx2dlabel-bkx2dbenvetx2d01.device/start timed out.
> apr 01 13:52:36 s-virt.vettorello.loc systemd[1]: Timed out waiting for device dev-disk-byx2dlabel-bkx2dbenvetx2d...ice.
> apr 01 13:52:36 s-virt.vettorello.loc systemd[1]: Job dev-disk-byx2dlabel-bkx2dbenvetx2d01.device/start failed wi...ut'.
> Hint: Some lines were ellipsized, use -l to show in full.
> [root at s-virt ~]# systemctl status dev-disk-by\x2dlabel-bk\x2dbenvet\x2d01.device -l
> ● dev-disk-byx2dlabel-bkx2dbenvetx2d01.device
>    Loaded: loaded
>    Active: inactive (dead)

But nothing is changed

How to resolve this problem?

Many thanks

-- 
Dario Lesca
(inviato dal mio Linux Fedora 23 Workstation)