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<H1>[Mageia-dev] ANN: Upgrading from Mageia 2 via urpmi</H1>
<B>Colin Guthrie</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=%3C50C48186.7010602%40colin.guthr.ie%3E"
TITLE="[Mageia-dev] ANN: Upgrading from Mageia 2 via urpmi">mageia at colin.guthr.ie
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<I>Sun Dec 9 13:18:14 CET 2012</I>
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<PRE>'Twas brillig, and Thomas Spuhler at 08/12/12 22:51 did gyre and gimble:
><i> On Sunday, November 18, 2012 09:37:43 AM Colin Guthrie wrote:
</I>>><i> Hi,
</I>>><i>
</I>>><i> As many of you know, upgrading from Mageia 2 is somewhat tricky due to
</I>>><i> the usr move.
</I>>><i>
</I>>><i> With Alpha3 comes the ability for the installer to upgrade the
</I>>><i> filesystem layout, but many of you (myself included) prefer upgrading
</I>>><i> via urpmi rather than the installer.
</I>>><i>
</I>>><i> While this is possible with some manual commands, it's not as trivial a
</I>>><i> task as it should be - until now!!
</I>>><i>
</I>>><i> So I've just pushed the package mageia-prepare-upgrade to mga2
</I>>><i> core/updates_testing.
</I>>><i>
</I>>><i> This package, when installed will add a new menu option to your
</I>>><i> bootloader. Simply install this package, reboot, select the "Mageia 3
</I>>><i> Upgrade Preparation" entry boot, wait while your FS is converted and
</I>>><i> then perform a urpmi upgrade as you would normally.
</I>>><i>
</I>>><i> I've not specifically tested the upgrade part, only the installation and
</I>>><i> creation of the initrd and bootloader entries in grub. I've also not
</I>>><i> done this on an mga2 machine yet but will do soon enough.
</I>>><i>
</I>>><i> I just wanted to get this package "out there" for anyone wanting to
</I>>><i> update their mga2 machines to mga3 a3 but not wanting to use the installer.
</I>>><i>
</I>>><i> At present there are a few limitations:
</I>>><i>
</I>>><i> 1. It requires kernel 3.3.8-2.mga2 to be installed (any flavour should
</I>>><i> work). A specific kernel version is not really 100% necessary but it
</I>>><i> does mean I can add hard requires to the package. This is only desirable
</I>>><i> to prevent the situation where users install this upgrade package but do
</I>>><i> not run it and later remove the kernel used to generate the initrd for
</I>>><i> the bootloader menu item, thus breaking it. Any smarter ideas on how to
</I>>><i> manage this welcome.
</I>>><i>
</I>>><i> 2. If you have /usr in a separate partition and have it mounted ro in
</I>>><i> your fstab, you will have to manually change the fstab to rw for the
</I>>><i> upgrade boot.
</I>>><i>
</I>>><i>
</I>>><i> Happy testing. Let me know if it kills any kittens. Please keep a backup
</I>>><i> etc. etc.
</I>>><i>
</I>>><i> Col
</I>><i> Thanks Colin.
</I>><i> The conversion works. But then the problem shows, we have no network.
</I>><i> doing a urpmi --download-all --auto-update only downloads the fist 120+ rpms (the ones needed before
</I>><i> restart-urpmi
</I>><i>
</I>><i> What is needed is to add some directories and then the network will start
</I>><i> /var/run/netreport
</I>><i> /var/lock/subsystem/network
</I>><i>
</I>><i> I will check after the upgrade if they can be deleted
</I>
Hmm, yes, I guess after doing the upgrade the various /var/run and
/var/lock folders would be nuked. In mga3 they will be created by
tmpfiles but not with a simple reboot on mga2...
Hmm, I wonder how best to do this... perhaps we could ship updated
packages for each of the packages which absolutely *need* this to do the
download... or perhaps we could just ship some essential config tweaks
in the this mageia-prepare-upgrade file. It shouldn't do any harm to do
the latter and it's a bit easier on the QA folk.
Cheers for the report
Col
--
Colin Guthrie
colin(at)mageia.org
<A HREF="http://colin.guthr.ie/">http://colin.guthr.ie/</A>
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