Re: Hard links - How do they work
On Mon, Feb 19 2024 at 10:52:16 AM, Keith Bainbridge <keithrbau@gmail.com> wrote:
> As promised:
> I said sometime in this thread that timeshift (and Back in Time) use
> hard links to create progressive copies of the system. The more I
> think about how hard links reportedly work, I reckon it can't be
> simply hard links.
>
> So I'm starting a new thread on that topic.
>
> My understanding is that a hard link (ln with no option) will list the
> file in another directory, but the file remains the same no matter
> where I may edit it. I use cp -lru as a quick and dirty way to
> protect me against accident deleting a file. (Sym-link doesn't give
> that protection, but does allow me to keep my home on a separate
> partition so that a fresh install is a LOT easier; but that is another
> topic)
>
> Snapshots reportedly hard link the directory/ies (generally means /
> but not limited ). a new snapshot copies the latest set and then
> updates any new files in the base. The more I try to visualise that
> process the more I reckon there must be more to it
>
> Anybody care to fill me in please?
>
Have you read their FAQ page about hard links?
https://github.com/bit-team/backintime/blob/dev/FAQ.md#how-do-snapshots-with-hard-links-work
> I am mindful that it is late Sunday night for many of you
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