device names - so much escaping

[Richard Hector <richard@walnut.gen.nz>]

Hi all,

I use LVM quite a lot.

> richard@backup:~$ sudo lvs|wc -l
> 140


The trouble is, things like device mapper seem to involve lots of name 
translations.

So the volume I call

d-rh-rm1-home

  (for dirvish backups of /home on rh-rm1 (my (rh) first (1) redmine 
(rm) server)) on

vg-backup0

  which is understandably known (to me) as

/dev/vg-backup0/d-rh-rm1-home

  is then known by its alternative name:

/dev/mapper/vg--backup0-d--rh--rm1--home

  because dev mapper seems to need '-' for its own purposes.

But then if systemd has a problem with it, I see a log line like this:

Apr  5 07:06:25 backup systemd[1]: 
dev-mapper-vg\x2d\x2dbackup0\x2dd\x2d\x2drh\x2d\x2drm1\x2d\x2dsrv.device: 
Job 
dev-mapper-vg\x2d\x2dbackup0\x2dd\x2d\x2drh\x2d\x2drm1\x2d\x2dsrv.device/start 
failed with result 'timeout'.

  in my logcheck email. Which is nearly unintelligible.

Now I could make the effort to avoid using '-' in my volume names (and 
mount points, which also get messed up in systemd's reporting).

But is this all really necessary? Can't these tools work without 
assigning special meaning to ordinary characters?

(The problem systemd's reporting, of course, is that I must have 
forgotten to "systemctl daemon-reload" after editing /etc/fstab ... that 
never used to be needed either.)

Grumpily,

Richard