Re: [gentoo-user] thin-provisioning-tools - but I don't provision anything!!!!!

[Alan Mackenzie]

Hello, Neil.

On Fri, Sep 15, 2017 at 21:47:01 +0100, Neil Bothwick wrote:
> On Sat, 16 Sep 2017 01:56:54 +0800, Andrew Lowe wrote:

> > 	I posted about a nasty infection my machine had with three
> > versions of Ruby a few days ago. In the process of trying to fix that I
> > noticed a thingy called "thin-provisioning-tools". I don't have
> > anything thin and I don't provision anything so why I ask?
> >
> > 	From what I've been able to understand, it's something to do
> > with Device Mapper, snapshots and "many virtual devices to be stored on
> > the same data volume". This is all just jibberish to me and I have no
> > idea as to why this has suddenly appeared in my world update. I haven't
> > asked for it. I don't use any of the "more advanced" thingies such as
> > lvm2 etc so does anyone have any idea as to why I've now go this to
> > install?

> If you add -t to emerge @world you will probably see that it is lvm2 that
> pulls this in, specifically the thin USE flag, which is on by default.

> Add ":sys-fs/lvm2 -thin" to /etc/portage/package.use and it will go away.

Yes, but do I want it to go away?  What is it, what does it do?

OK, let's try emerge -s thin-provisioning-tools.  We get back only
patronising garbage, namely "A suite of tools for thin provisioning on
Linux" - well, duh!  Who write's this stuff?

So, WTF is thin provisioning?

> --
> Neil Bothwick

-- 
Alan Mackenzie (Nuremberg, Germany).