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From: Tobias Geerinckx-Rice <me@tobias.gr>
To: "Théo Maxime Tyburn" <theo.tyburn@gmail.com>
Cc: Kaelyn <kaelyn.alexi@protonmail.com>,
	Giovanni Biscuolo <g@xelera.eu>,
	guix-devel@gnu.org
Subject: Re: Move /gnu/store to another filesystem
Date: Fri, 27 May 2022 13:28:52 +0200	[thread overview]
Message-ID: <87v8trurzp@nckx> (raw)
In-Reply-To: <87v8tsvzn7.fsf@gmail.com>

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Hi Théo,

Théo Maxime Tyburn 写道：
> I figured out where the problem came from. I forgot to use the 
> -p option
> while copying the store with cp.

I think this will probably work (I mean—it obviously did, but also 
longer-term).

However, ‘cp -p’ does not preserve everything, including hard 
links.  Applications shouldn't care but you might be surprised at 
how much disc space hard links save on my system:

~ λ du -hs /gnu/store
86G	/gnu/store
~ λ du -hs --count-links /gnu/store
192G	/gnu/store

I was!

‘cp -a’ should preserve hard links but I personally recommend 
using rsync instead, with a paranoid helping of -aHAX flags. 
Unlike cp, it's resumable, which is nice when copying 100s of 
gigabytes.

Kind regards,

T G-R

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  parent reply	other threads:[~2022-05-27 11:37 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-25 16:56 Move /gnu/store to another filesystem Théo Maxime Tyburn
2022-05-26 10:28 ` Giovanni Biscuolo
2022-05-26 10:44   ` Théo Maxime Tyburn
2022-05-26 16:24     ` Kaelyn
2022-05-26 19:48       ` Théo Maxime Tyburn
2022-05-27  5:56         ` Giovanni Biscuolo
2022-05-27  9:34           ` Théo Maxime Tyburn
2022-05-27 11:08           ` Théo Maxime Tyburn
2022-05-27 12:48             ` Giovanni Biscuolo
2022-05-27 14:12               ` Théo Maxime Tyburn
2022-05-27 15:55                 ` Giovanni Biscuolo
2022-05-27 16:37                   ` Théo Maxime Tyburn
2022-05-27 11:28         ` Tobias Geerinckx-Rice [this message]
2022-05-27 11:37           ` Tobias Geerinckx-Rice
2022-05-27 14:09             ` Théo Maxime Tyburn
2022-05-27 13:56           ` Théo Maxime Tyburn

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