Problem solved. Thanks. //RE: Ubuntu12.04 with dbus installed can not restart

[Licongjuan (Jane)]

Thank you very much.

Installing source codes on Ubuntu12.04 always causes restarting problem.

According to your explanation, I installed the libdbus-1-dev develop deb package for ubuntu12.04.
Now it works.

Thanks again.
Jane.
-----Original Message-----
From: dbus [mailto:dbus-bounces at lists.freedesktop.org] On Behalf Of Simon McVittie
Sent: Tuesday, May 26, 2015 6:32 PM
To: dbus at lists.freedesktop.org
Subject: Re: Ubuntu12.04 with dbus installed can not restart

On 22/05/15 07:55, Licongjuan (Jane) wrote:
> One of my project needs to call dbus c code, so I installed dbus-1.9.4 
> source code on the ubuntu12.04 server.

Ubuntu has historically depended on a patched version of dbus with vendor changes for both Upstart and AppArmor support. Installing a local version without those patches will not work.

Ubuntu 15.04 no longer has the Upstart patches, and dbus 1.9.12+ integrates a modified version of Ubuntu's AppArmor patches, so maybe one day Ubuntu can stop patching it; but 12.04 is 3 years old by now, and will likely continue to use their patched dbus 1.4.x for as long as it is supported.

In general, dbus-daemon is an operating system component, and you should use the version supplied by the OS vendor and not install your own replacement. If you have a problem with that version, the first point of contact should be the OS vendor. If you replace things as fundamental as dbus, you are essentially making your own fork of the OS, in which case you hopefully already know what you're doing; "if you break something, you get to keep both pieces".

Additionally, regardless of whether your OS patches dbus, you should not be using dbus 1.9.4. The latest stable version is the 1.8.x branch, and OS vendors should normally either be using the latest release from that branch (currently 1.8.18), or an older stable release with their own backports of important security and bug fixes.

If you are directly contributing to D-Bus development or working on a non-production OS variant with no change-control process (Debian experimental, Fedora rawhide, etc.) then the dbus 1.9.x development branch would be appropriate; but if you are using that branch, you are expected to keep up with the latest version, currently 1.9.16. In particular, 1.9.4 was vulnerable to CVE-2015-0245.

Regards,
    S

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