[yocto] udev breakage

[Gary Thomas]

On 2013-04-22 17:09, Gary Thomas wrote:
> I've found that Poky/Yocto images built after this commit have
> a broken udev:
>
> commit c71d1f446c734954dceba0666c4f074047864b87
> Author: Richard Purdie <richard.purdie at linuxfoundation.org>
> Date:   Wed Apr 17 14:53:21 2013 +0000
>
>      udev: Effectively revert the move to /sbin
>
>      This effectively reverts the changes made in b49ddeb11c0319b7ece278fd7cef6b0223114ca9
>      to move udev's libexecdir to sbin. The changes caused too many issues in
>      other places and were not well enough tested this close to a release.
>
>      Rather than use base_libdir, the nonarch version is used to try and give some
>      chance of multilib not being totally broken in the release.
>
>      (From OE-Core rev: c50e50fdafad378d75b7b74259a3d55ca0fe3d18)
>
>      Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
>
> Prior to this commit, the X server finds my input devices and works
> perfectly.  After this commit, something breaks and X can't find any
> keyboard/mouse/touch.
>
> It seems like the path '/sbin/udev' has crept in some way that the
> recipe configuration does not affect.  After the failing commit, all
> of the udev files should be in ${nonarch_base_libdir}, not /sbin.
> However, that doesn't seem to be the case in libudev
>
> root at sabrelite:~# strings /lib/libudev.so.0 | grep /udev
> /etc/udev/udev.conf
> /run/udev
> /sbin/udev/rules.d
> /etc/udev/rules.d
>
> I believe that this is why X is failing since it uses libudev to
> search for devices.
>
> I've not found where/how this mixup is happening, perhaps someone more
> familiar with the udev code can spot it quickly.


Somehow this misconfiguration ended up in a number of the executable
programs in the udev package:

******* /usr/bin/udevadm
/sbin/udev/ /sbin/udev/rules.d
******* /lib/libudev.so.0.13.1
/sbin/udev/rules.d
******* /lib/udev/ata_id
/sbin/udev/rules.d
******* /lib/udev/collect
/sbin/udev/rules.d
******* /lib/udev/accelerometer
/sbin/udev/rules.d
******* /lib/udev/cdrom_id
/sbin/udev/rules.d
******* /lib/udev/udevd
/sbin/udev/ /sbin/udev/devices /sbin/udev/rules.d
******* /lib/udev/scsi_id
/sbin/udev/rules.d
******* /lib/udev/keymap
/sbin/udev/keymaps/


Just to see if this is the problem, I added a symlink
   # ln -s ${nonarch_base_libdir}/udev /sbin
and X now works (after a reboot)

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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