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<H1>[Mageia-dev] ANN: Dracut now mounts /usr properly \o/</H1>
<B>Anssi Hannula</B>
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TITLE="[Mageia-dev] ANN: Dracut now mounts /usr properly \o/">anssi at mageia.org
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<I>Fri Dec 16 10:58:31 CET 2011</I>
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<PRE>On 16.12.2011 00:14, Colin Guthrie wrote:
><i> OK, so this took me a while to actually get around to setting up some
</I>><i> VMs to test this. Sorry about that :s
</I>><i>
</I>><i> Anyway, I've tested with a / on ext4 + /usr on LVM + ext4.
</I>><i>
</I>><i> With appropriate fixes, I was able to generate an initrd without any
</I>><i> specific config to tell dracut what to do. There is a caveat. /usr is
</I>><i> mounted read only. I can tweak this, but by the same token I'm not sure
</I>><i> I should... It's trivial to do a "mount -o remount,rw /usr" if you want
</I>><i> to install packages etc. Otherwise, /usr should pretty much be read only
</I>><i> anyway.. if something tries to modify stuff on /usr that's not part of a
</I>><i> package installation process that is (IMO) a bug and should be fixed.
</I>
IMO init scripts should mount /usr as rw unless /etc/fstab instructs to
mount it as read-only.
><i> The code for mounting /usr is not the same as how it'll (eventually) be
</I>><i> done upstream. It only deals with /usr and if you have e.g. /usr/bin on
</I>><i> a separate partition they you are SOL and will have to wait for the
</I>><i> upstream version.
</I>><i>
</I>><i> I think however that for the majority of setups the current solutions is
</I>><i> likely good enough.
</I>><i>
</I>><i>
</I>><i> Now, when I installed, dracut wasn't used as initrd, so if no one shouts
</I>><i> too loudly I'll make it deprecate mkinitrd tomorrow and we can test
</I>><i> installs where dracut generates the first initrd and see how it fairs.
</I>><i>
</I>><i> Please test and let me know. It's version 014.1mga2
</I>><i>
</I>><i> Col
</I>><i>
</I>><i>
</I>
--
Anssi Hannula
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