[Mageia-dev] ANNOUNCE: The /usr move cometh! <---- Instructions

Fri Aug 3 12:32:24 CEST 2012

On Fri, Aug 3, 2012 at 11:27 AM, Christiaan Welvaart
+<cjw at daneel.dyndns.org> wrote:
+> On Fri, 3 Aug 2012, Colin Guthrie wrote:
+>
+>> 'Twas brillig, and Pascal Terjan at 03/08/12 00:40 did gyre and gimble:
+>>>
+>>> On Fri, Aug 3, 2012 at 12:23 AM, Pascal Terjan <pterjan at gmail.com> wrote:
+>>>>
+>>>> On Sun, Jul 22, 2012 at 1:12 AM, Colin Guthrie <mageia at colin.guthr.ie>
+>>>> wrote:
+>>>>>
+>>>>> OK, so the packages have now all been uploaded.
+>>>>>
+>>>>> You should see several packages now that you cannot install on
+>>>>> Cauldron.
+>>>>> This is intended behaviour.
+>>>>>
+>>>>> Here is how to update your cauldron systems:
+>>>>>
+>>>>>  1. Run "urpmi --auto-update" install everything that can be installed.
+>>>>>  2. Ensure that latest dracut is installed. Run "urpmi dracut" to make
+>>>>> sure (it may have been excluded in the --auto-update if it was in a
+>>>>> transaction with other packages that could not be installed).
+>>>>>  3. Ensure that you do not have zapata or dpkg installed (rpm -e
+>>>>> zapata;
+>>>>> rpm -e dpkg)
+>>>>>  4. Generate a new initrd and include the conversion script: dracut -f
+>>>>> -a convertfs
+>>>>>  5. If you have /usr on a separate partition
+>>>>>      - Ensure there is enough free space to hold /bin, /sbin, /lib and
+>>>>> /lib64 content.
+>>>>>      - If your /usr is mounted readonly, change your /etc/fstab to
+>>>>> mount
+>>>>> it rw.
+>>>>>  6. Reboot.
+>>>>>  7. At the bootloader prompt, edit the command line and append: "rw
+>>>>> rd.convertfs" (without the quotes) to your command line and then boot.
+>>>>>
+>>>>> That should be all that is needed :)
+>>>>
+>>>>
+>>>> How to update a chroot?
+>>>
+>>>
+>>> Answering to myself:
+>>>
+>>> chroot $chroot urpmi dracut
+>>> $chroot/usr/lib/dracut/modules.d/30convertfs/convertfs.sh $chroot
+>>>
+>>> That did the conversion, but I still can't update, probably because my
+>>> rpm is too old (rpm-4.9.1.3-2.mga2) as it was not possible to update
+>>> it before the conversion (it pulls filesystem).
+>>
+>>
+>> Yeah in this case if the conversion is done, I'd just recommend
+>> installing filesystem --nodeps and the rest should flow. It's not ideal
+>> certainly, but there is still time to polish this a bit before upgraders
+>> get hit by this (and as there will be updated rpm packages in the stable
+>> releases, it should mitigate this specific problem, but we should still
+>> see if we can do things better)
+>
+>
+> Polish this a bit? It is not at all ready, and as I said earlier rpmlib is
+> broken. Please don't upload broken rpm packages to stable releases.
+>
+> Maybe the instructions should be:
+>   - install dracut and kernel-desktop-latest from mga3
+>   - reboot, make sure the "usrmove filesystem update"
+>     kernel entry is chosen in the bootloader
+>   - upgrade to mga3 as usual
+>
+> But that means a lot of things are still missing:
+>   - dracut automatically including the conversion script
+>     (only when needed?)
+>   - automatic generation of the bootloader entry mentioned above
+
+I would vote to also force the reboot into this entry at next boot
+
+>   - removal of this bootloader entry after conversion
+>
+>
+>     Christiaan
+