[Mageia-dev] [soft-commits] [4017] Include persistent-storage udev rules ( needed for UUID info on root disks during install)

Wed Apr 11 10:41:41 CEST 2012

'Twas brillig, and Thierry Vignaud at 11/04/12 07:49 did gyre and gimble:
+> On 11 April 2012 01:44,  <root at mageia.org> wrote:
+>> Log Message
+>>
+>> Include persistent-storage udev rules (needed for UUID info on root disks
+>> during install)
+> 
+> For the record, what does this fix?
+
+Sorry, I should have been more verbose.
+
+Basically because of the previous commit:
+http://svnweb.mageia.org/soft?view=revision&revision=4014
+
+We can now generate a "hostonly" initrd, i.e. a nice small, "normal"
+initrd that we typically produce, tailored for the system in question.
+
+As a fallout from this, when running the install with an encrypted root
+partition (and possibly just a normal LVM, not sure), various udev
+properties were not injected into the udev database. These properties
+(FS_UUID - can be seen via e.g. udevadm info --query=property
+--name=/dev/sda5) as needed by dracut to detect things properly (rather
+than resulting to lots of weird and wonderful probing methods dracut
+tries to use udev as it's primary source of info).
+
+So these rules ensured that the UUID of /dev/sd* partitions were
+available in udev.
+
+Hope that clarifies things.
+
+I was quietly hoping these two change would also solve
+https://bugs.mageia.org/show_bug.cgi?id=5330 but it seems that one will
+need a bit more investigation/work.
+
+Also note that on urpmi upgrade, the user will still have a large,
+non-hostonly initrd generated. We can't do much about that until the
+user has booted with that initrd and can then regenerate it again to
+make a nice lean, hostonly version.
+
+Cheers
+
+Col
+
+
+
+
+-- 
+
+Colin Guthrie
+gmane(at)colin.guthr.ie
+http://colin.guthr.ie/
+
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+