From: Austin S Hemmelgarn <ahferroin7@gmail.com>
To: Duncan <1i5t5.duncan@cox.net>, linux-btrfs@vger.kernel.org
Subject: Re: subvols and parents - how?
Date: Thu, 10 Dec 2015 07:31:52 -0500 [thread overview]
Message-ID: <566970B8.7030700@gmail.com> (raw)
In-Reply-To: <pan$f0e4$be60fa55$99baefcb$2044c99d@cox.net>
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On 2015-12-09 22:56, Duncan wrote:
> Austin S Hemmelgarn posted on Wed, 09 Dec 2015 14:04:06 -0500 as
> excerpted:
>
>> Agreed. It's not too bad fixing a Gentoo system (as long as
>> /var/lib/portage/world is still correct, you can just nuke the installed
>> package database and emerge world, it'll take time, but it will get your
>> system in a guaranteed consistent state).
>
> For sufficiently loose values of "consistent", yes, as I found out by
> experience. But it can be done, and I do have the experience to prove it.
>
> What happens in practice is that while yes, as long as @world is correct
> you can install to current and have all those files tracked again as
> appropriate, if your package installation database is missing or out of
> sync with what's actually on your filesystem(s), where the new version of
> various packages will replace older files as they come across them during
> the install process (subject to CONFIG_PROTECT of course, this part isn't
> the problem), the problem is actually where the files of the actually
> installed but untracked version differ from those of the version you're
> installing.
Oh, definately, it's a useable system short term, but not something you
should be depending on. The other big difference though is that it's
then trivial to bootstrap a clean install on the same system if you have
the space for it (which is what I usually end up doing).
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next prev parent reply other threads:[~2015-12-10 12:31 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-24 4:56 subvols and parents - how? Christoph Anton Mitterer
2015-11-24 8:29 ` Duncan
2015-11-24 21:25 ` Christoph Anton Mitterer
2015-11-24 21:55 ` Hugo Mills
2015-11-24 23:20 ` Christoph Anton Mitterer
2015-11-24 23:30 ` Hugo Mills
2015-11-24 23:38 ` Christoph Anton Mitterer
2015-11-27 1:02 ` Duncan
2015-12-09 4:36 ` Christoph Anton Mitterer
2015-12-09 10:53 ` Duncan
2015-12-09 19:04 ` Austin S Hemmelgarn
2015-12-10 3:56 ` Duncan
2015-12-10 12:31 ` Austin S Hemmelgarn [this message]
2015-12-12 19:58 ` Christoph Anton Mitterer
2015-11-27 2:02 ` Duncan
2015-12-09 4:38 ` Christoph Anton Mitterer
2015-12-09 11:26 ` Duncan
2015-12-10 21:13 ` subvols, ro- and bind mounts " Christoph Anton Mitterer
2015-12-10 22:36 ` S.J.
2015-12-10 23:41 ` Christoph Anton Mitterer
2015-12-11 2:32 ` Chris Murphy
2015-12-12 20:27 ` Christoph Anton Mitterer
2015-12-12 2:32 ` subvols and parents " Christoph Anton Mitterer
2015-12-12 3:07 ` Christoph Anton Mitterer
2015-12-12 10:20 ` Duncan
2015-12-09 14:49 ` Axel Burri
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