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Date:      Thu, 04 Jun 2020 12:40:02 +0200
From:      Ralf Mardorf <ralf.mardorf@rocketmail.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: Mininal skills
Message-ID:  <eb6a0c9be7202228c69caeb7c5387d3305ad7b98.camel@rocketmail.com>
In-Reply-To: <CAEJNuHz4_OALKm%2BGPPvH0cTw58D6vpxfP4orkEZeWjsZye1FWA@mail.gmail.com>
References:  <CY4PR19MB0104A2C03F4D66A1DA251A23F9880@CY4PR19MB0104.namprd19.prod.outlook.com> <CAEJNuHwUWB1EgtnhOYvEcBdH3Tip%2B5H8YyvViD9zZU70mHO-Xg@mail.gmail.com> <20200604103920.20ee2d27@archlinux> <CAEJNuHz4_OALKm%2BGPPvH0cTw58D6vpxfP4orkEZeWjsZye1FWA@mail.gmail.com>

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On Thu, 2020-06-04 at 11:19 +0100, Ottavio Caruso wrote:
> On Thu, 4 Jun 2020 at 09:39, Ralf Mardorf wrote:
> > On Thu, 4 Jun 2020 09:04:45 +0100, Ottavio Caruso wrote:
> > > Install, uninstall, break, fix, reinstall, configure.
> >                      ^^^^^ :D
> >                      I don't know what this is. Never happened to me.
> > 
> > For those who "decide" to "break", first becoming familiar with backup
> > strategies might be a good idea.
> 
> You missed the "do it in a VM first". If you've never broken a system
> maybe it's because you haven't tried hard.
> 
> By being able to use virtualisation, one also picks other skills. I've
> learnt a lot by using qemu, setting up virtual serial consoles,
> virtual interfaces, ssh forwarding, etc. Things you can not usually do
> on bare metal.

I'm kidding ;). It's not that hard to break an install.
For example

  # rm -Ir /tmp/foo/*

could easily become

  # rm -Ir / tmp/foo/*

or

  # rm -Ir /tmp/foo/ *

due to a human typo or failure of an aged keyboard. A prompt before
removing recursively not necessarily does prevent against continuing
with the next mistake.




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