Understanding the bin, sbin, usr/bin , usr/sbin split (2010)

Re:Understanding the bin, sbin, usr/bin , usr/sbin split (2010) by Jasper_ on Friday May 06, 2016 @11:39PM (#11648284)

The systemd maintainers were one of the first ones to put together a technical proposal and do a lot of the implementation work for the UsrMerge, in a way that was reusable across distros.

systemd itself does not depend on being on a UsrMerge'd system, and otherwise, the proposal does not have anything to do with systemd.

From https://www.freedesktop.org/wiki/Software/systemd/TheCaseFor...

"Note that this page discusses a topic that is actually independent of systemd."

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Re:Understanding the bin, sbin, usr/bin , usr/sbin split (2010) by JdeBP on Saturday May 07, 2016 @02:30AM (#11648625)

You are quoting 2013 doco. systemd has (again) changed since then.

As of 2016, the position is that whilst there is still code in some of the program to handle a split /usr, a significant part of the system (in particular Plug and Play device management) now references /usr and depends from it, to the extent that it is already a requirement that /usr be always present: i.e. that it either be on the root volume or be mounted by /init (on the initramfs) before it invokes systemd.

* https://lists.freedesktop.org/archives/systemd-devel/2016-Fe...

Lennart Poettering is indeed now pushing for systemd to impose a similar requirement for /var .

* https://lists.freedesktop.org/archives/systemd-devel/2016-Fe...

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Re:Understanding the bin, sbin, usr/bin , usr/sbin split (2010) by Jasper_ on Saturday May 07, 2016 @03:18AM (#11648721)

Uh, I don't see how this is related to UsrMerge? You can still have separate /usr/bin and /bin directories, you just need to make sure /usr is mounted and accessible during boot. Requiring /usr be available during boot has long been the case for Linux, even before systemd came along.

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Re:Understanding the bin, sbin, usr/bin , usr/sbin split (2010) by spc476 on Saturday May 07, 2016 @03:21AM (#11648726)

So, as Linus controls the kernel, Lennart wants to control userspace?

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Re:Understanding the bin, sbin, usr/bin , usr/sbin split (2010) by digi_owl on Saturday May 07, 2016 @03:38AM (#11648751)

I'm not sure Torvalds care about control either way, he just wants to build a kernel to be proud off.

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Re:Understanding the bin, sbin, usr/bin , usr/sbin split (2010) by arca_vorago on Saturday May 07, 2016 @09:11AM (#11649448)

I have a sneaking suspicion one day systemd is going to try to replace the gnu in gnu/linux.

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Re:Understanding the bin, sbin, usr/bin , usr/sbin split (2010) by digi_owl on Sunday May 08, 2016 @04:56AM (#11653277)

Why, when they can grab the reins?

Iirc, glibc used to be maintained by a RH guy until he got on so many people's wrong side there was fork made that ran for a number of years until the original was merged into it and the fork renamed.

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Re:Understanding the bin, sbin, usr/bin , usr/sbin split (2010) by digi_owl on Saturday May 07, 2016 @07:27AM (#11649179)

That one curious definiton of "reusable"...

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