Gentoo Archives: gentoo-dev

From: Alexis Ballier <aballier@g.o>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] usr merge
Date: Wed, 06 Apr 2016 15:11:30
Message-Id: 00dd8d2f-a8a8-4fab-b7a6-c72466d62532@gentoo.org
In Reply to: Re: [gentoo-dev] usr merge by "M. J. Everitt"
1 On Wednesday, April 6, 2016 4:58:05 PM CEST, M. J. Everitt wrote:
2 > What, if any, is the benefit of squashing /usr out of the equation? I
3 > happen to have a few workstations that load their /usr off an NFS share
4 > presently,
5
6
7 This is precisely one case where I see benefits: no need to correlate / and
8 /usr.
9
10 With the current way, this setup is broken if you don't pay attention:
11 glibc is not backwards compatible (that is, stuff built for glibc 2.22 is
12 not guaranteed to work with 2.21 and less), but you have glibc in /lib and
13 stuff in /usr linking and dynamically loading it. If your nfs server
14 updates glibc, you have to update every / on every of your workstations or
15 fear the consequences of running binaries built for 2.22 but running
16 against an older version.
17
18
19 See https://fedoraproject.org/wiki/Features/UsrMove for a more complete
20 discussion.

Replies

Subject Author
Re: [gentoo-dev] usr merge Richard Yao <ryao@g.o>