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authorNicolas Vigier <boklm@mageia.org>2013-04-14 13:46:12 +0000
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+ <H1>[Mageia-dev] ANN: Upgrading from Mageia 2 via urpmi</H1>
+ <B>Thomas Spuhler</B>
+ <A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20ANN%3A%20Upgrading%20from%20Mageia%202%20via%20urpmi&In-Reply-To=%3C201212102151.53094.thomas%40btspuhler.com%3E"
+ TITLE="[Mageia-dev] ANN: Upgrading from Mageia 2 via urpmi">thomas at btspuhler.com
+ </A><BR>
+ <I>Tue Dec 11 05:51:52 CET 2012</I>
+ <P><UL>
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+<PRE>On Sunday, December 09, 2012 11:55:13 AM Colin Guthrie wrote:
+&gt;<i> 'Twas brillig, and Thierry Vignaud at 09/12/12 18:48 did gyre and gimble:
+</I>&gt;<i> &gt; On 9 December 2012 13:18, Colin Guthrie &lt;<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">mageia at colin.guthr.ie</A>&gt; wrote:
+</I>&gt;<i> &gt;&gt;&gt;&gt; So I've just pushed the package mageia-prepare-upgrade to mga2
+</I>&gt;<i> &gt;&gt;&gt;&gt; core/updates_testing.
+</I>&gt;<i> &gt;&gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt;&gt; This package, when installed will add a new menu option to your
+</I>&gt;<i> &gt;&gt;&gt;&gt; bootloader. Simply install this package, reboot, select the &quot;Mageia 3
+</I>&gt;<i> &gt;&gt;&gt;&gt; Upgrade Preparation&quot; entry boot, wait while your FS is converted and
+</I>&gt;<i> &gt;&gt;&gt;&gt; then perform a urpmi upgrade as you would normally.
+</I>&gt;<i> &gt;&gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt;&gt; I've not specifically tested the upgrade part, only the installation
+</I>&gt;<i> &gt;&gt;&gt;&gt; and creation of the initrd and bootloader entries in grub. I've also
+</I>&gt;<i> &gt;&gt;&gt;&gt; not done this on an mga2 machine yet but will do soon enough.
+</I>&gt;<i> &gt;&gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt;&gt; I just wanted to get this package &quot;out there&quot; for anyone wanting to
+</I>&gt;<i> &gt;&gt;&gt;&gt; update their mga2 machines to mga3 a3 but not wanting to use the
+</I>&gt;<i> &gt;&gt;&gt;&gt; installer.
+</I>&gt;<i> &gt;&gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt;&gt; At present there are a few limitations:
+</I>&gt;<i> &gt;&gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt;&gt; 1. It requires kernel 3.3.8-2.mga2 to be installed (any flavour should
+</I>&gt;<i> &gt;&gt;&gt;&gt; work). A specific kernel version is not really 100% necessary but it
+</I>&gt;<i> &gt;&gt;&gt;&gt; does mean I can add hard requires to the package. This is only
+</I>&gt;<i> &gt;&gt;&gt;&gt; desirable to prevent the situation where users install this upgrade
+</I>&gt;<i> &gt;&gt;&gt;&gt; package but do not run it and later remove the kernel used to
+</I>&gt;<i> &gt;&gt;&gt;&gt; generate the initrd for the bootloader menu item, thus breaking it.
+</I>&gt;<i> &gt;&gt;&gt;&gt; Any smarter ideas on how to manage this welcome.
+</I>&gt;<i> &gt;&gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt;&gt; 2. If you have /usr in a separate partition and have it mounted ro in
+</I>&gt;<i> &gt;&gt;&gt;&gt; your fstab, you will have to manually change the fstab to rw for the
+</I>&gt;<i> &gt;&gt;&gt;&gt; upgrade boot.
+</I>&gt;<i> &gt;&gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt;&gt; Happy testing. Let me know if it kills any kittens. Please keep a
+</I>&gt;<i> &gt;&gt;&gt;&gt; backup etc. etc.
+</I>&gt;<i> &gt;&gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt;&gt; Col
+</I>&gt;<i> &gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt; Thanks Colin.
+</I>&gt;<i> &gt;&gt;&gt; The conversion works. But then the problem shows, we have no network.
+</I>&gt;<i> &gt;&gt;&gt; doing a urpmi --download-all --auto-update only downloads the fist 120+
+</I>&gt;<i> &gt;&gt;&gt; rpms (the ones needed before restart-urpmi
+</I>&gt;<i> &gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt; What is needed is to add some directories and then the network will
+</I>&gt;<i> &gt;&gt;&gt; start /var/run/netreport
+</I>&gt;<i> &gt;&gt;&gt; /var/lock/subsystem/network
+</I>&gt;<i> &gt;&gt;&gt;
+</I>&gt;<i> &gt;&gt;&gt; I will check after the upgrade if they can be deleted
+</I>&gt;<i> &gt;&gt;
+</I>&gt;<i> &gt;&gt; Hmm, yes, I guess after doing the upgrade the various /var/run and
+</I>&gt;<i> &gt;&gt; /var/lock folders would be nuked. In mga3 they will be created by
+</I>&gt;<i> &gt;&gt; tmpfiles but not with a simple reboot on mga2...
+</I>&gt;<i> &gt;&gt;
+</I>&gt;<i> &gt;&gt; Hmm, I wonder how best to do this... perhaps we could ship updated
+</I>&gt;<i> &gt;&gt; packages for each of the packages which absolutely *need* this to do the
+</I>&gt;<i> &gt;&gt; download... or perhaps we could just ship some essential config tweaks
+</I>&gt;<i> &gt;&gt; in the this mageia-prepare-upgrade file. It shouldn't do any harm to do
+</I>&gt;<i> &gt;&gt; the latter and it's a bit easier on the QA folk.
+</I>&gt;<i> &gt;
+</I>&gt;<i> &gt; Humm we could just package mageia-prepare-upgrade in mga3 and add
+</I>&gt;<i> &gt; it to urpmi priority list.
+</I>&gt;<i> &gt; Thus it would also work for people who never apply updates...
+</I>&gt;<i> &gt; My 2 cents
+</I>&gt;<i>
+</I>&gt;<i> Not sure it would help. I mean users have to install it, reboot and then
+</I>&gt;<i> install the rest...
+</I>&gt;<i>
+</I>&gt;<i> Also how does the urpmi priority list work? Does that not require that
+</I>&gt;<i> we install urpmi first? If so that likely won't work as there is a
+</I>&gt;<i> chicken and egg scenario that prevents the rpm+urpmi from mga3 being
+</I>&gt;<i> installed until the fs is updated.
+</I>&gt;<i>
+</I>&gt;<i>
+</I>&gt;<i> Basically, a fully up-to-date mga2 (including rpm package and the
+</I>&gt;<i> mageia-prepare-upgrade package) + reboot for preparation is needed for a
+</I>&gt;<i> urpmi-based upgrades to work.
+</I>&gt;<i>
+</I>&gt;<i> Col
+</I>
+OK, I started all over again from a completed mga 2 with all updates.
+The requires are: Pizza and beer
+install mageia-prepare-upgrade
+change sources to cauldron
+reboot with mageia-prepare-ugrade
+
+eat pizza and drink beer, it takes a lot of time to pass all the time-outs
+
+(it will boot into a none graphic shell)
+login as root ans then startx
+ create /var/run and then start the network
+after network runs, remove the /var/run (otherwise filesystem will not install)
+
+then use urpmi --auto-update
+
+( got the message &quot;/&quot; is mount read-only a few times and had to re-boot and go throught the
+/var/run cycle as desribed above)
+
+This got me a full up-to-date cauldron
+
+
+--
+Best regards
+Thomas Spuhler
+</PRE>
+
+
+
+
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