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diff --git a/zarb-ml/mageia-dev/2012-July/017266.html b/zarb-ml/mageia-dev/2012-July/017266.html new file mode 100644 index 000000000..fffaa21b6 --- /dev/null +++ b/zarb-ml/mageia-dev/2012-July/017266.html @@ -0,0 +1,141 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<HTML> + <HEAD> + <TITLE> [Mageia-dev] Planning the /usr move + </TITLE> + <LINK REL="Index" HREF="index.html" > + <LINK REL="made" HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20Planning%20the%20/usr%20move&In-Reply-To=%3C4FFD68F1.7090003%40colin.guthr.ie%3E"> + <META NAME="robots" CONTENT="index,nofollow"> + <META http-equiv="Content-Type" content="text/html; charset=us-ascii"> + <LINK REL="Previous" HREF="017273.html"> + <LINK REL="Next" HREF="017268.html"> + </HEAD> + <BODY BGCOLOR="#ffffff"> + <H1>[Mageia-dev] Planning the /usr move</H1> + <B>Colin Guthrie</B> + <A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20Planning%20the%20/usr%20move&In-Reply-To=%3C4FFD68F1.7090003%40colin.guthr.ie%3E" + TITLE="[Mageia-dev] Planning the /usr move">mageia at colin.guthr.ie + </A><BR> + <I>Wed Jul 11 13:52:17 CEST 2012</I> + <P><UL> + <LI>Previous message: <A HREF="017273.html">[Mageia-dev] Last few packages with old udev dep... aka drop chromium-browser-unstable? +</A></li> + <LI>Next message: <A HREF="017268.html">[Mageia-dev] Planning the /usr move +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#17266">[ date ]</a> + <a href="thread.html#17266">[ thread ]</a> + <a href="subject.html#17266">[ subject ]</a> + <a href="author.html#17266">[ author ]</a> + </LI> + </UL> + <HR> +<!--beginarticle--> +<PRE>Hi, + +This is just a message regarding the upcoming /usr move. + +The good news is that most of the hard work is already done by Fedora folk. + +There is still a bit to do but the process is actually quite simple. + +The steps are as follows: + 1. Release a dracut package that is capable of running the usermove on +boot (or current package should be fine). + 2. Add a patch to RPM that introduces a new check that must pass before +a given RPM can be installed. + 3. Create a new "filesystem" build that uses this check. + + +The above process ensures that the new "filesystem" package cannot be +installed on existing systems with the old layout. + +Several other packages will be subsequently broken (some packages ship +their binaries in /bin but symlink them to /usr/bin but when /bin is +itself a symlink to /usr/bin, they package ultimately conflicts with +itself!). We need to identify such packages and fix them and have them +ready to go. In order to do the transition correctly, we may need to fix +them first, build them and then wait until all such packages are fixed, +THEN update the filesystem rpm and then rebuild all such packages with a +dep on the filesystem > x package. This might be needed to avoid any +problems on the build system chroots. + +During this window when packages are updated but do not depend on the +new filesystem, some things might break as hard-coded paths may no +longer work. I don't think this will affect the chroots and build system +too much, but it might affect real systems if people do an auto-update. +Therefore I'd propose to do this work at a time when people can be +warned and there are a few of us about to fix things up on the chroots +should things go wrong :) + +Once all this preparation work is done, users will find they cannot +install the filesystem and the various packages that depend on it. + +In order to upgrade I will push a new package +"mageia-filesystem-update". This package will create a new initrd via +dracut and add a menu option in the boot loader that will trigger +dracut's built in migration routine. Users will then be requested to +reboot using this option and then run the package updates. + +The new filesystem rpm can then remove this conversion package +automatically (via conflicts, not obsoletes) if we think that's wise to +do such housekeeping. + + + +In a set of follow up emails I'll post some results from investigations +of what packages are affected by the change (preliminary checks are +quite promising in that there are not too many packages that will need +fixed - IIRC fedora found ~30 packages which isn't too bad). + +Please let me know if the process is not clear or you think I've missed +something. + +Col + + + + +-- + +Colin Guthrie +colin(at)mageia.org +<A HREF="http://colin.guthr.ie/">http://colin.guthr.ie/</A> + +Day Job: + Tribalogic Limited <A HREF="http://www.tribalogic.net/">http://www.tribalogic.net/</A> +Open Source: + Mageia Contributor <A HREF="http://www.mageia.org/">http://www.mageia.org/</A> + PulseAudio Hacker <A HREF="http://www.pulseaudio.org/">http://www.pulseaudio.org/</A> + Trac Hacker <A HREF="http://trac.edgewall.org/">http://trac.edgewall.org/</A> + +</PRE> + + + + + + + + + +<!--endarticle--> + <HR> + <P><UL> + <!--threads--> + <LI>Previous message: <A HREF="017273.html">[Mageia-dev] Last few packages with old udev dep... aka drop chromium-browser-unstable? +</A></li> + <LI>Next message: <A HREF="017268.html">[Mageia-dev] Planning the /usr move +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#17266">[ date ]</a> + <a href="thread.html#17266">[ thread ]</a> + <a href="subject.html#17266">[ subject ]</a> + <a href="author.html#17266">[ author ]</a> + </LI> + </UL> + +<hr> +<a href="https://www.mageia.org/mailman/listinfo/mageia-dev">More information about the Mageia-dev +mailing list</a><br> +</body></html> |