error after update to 4.10.2 - unable to create io-slave

[Patrick Munzer]

Running kubuntu 12.04 with backports enabled. After updating from kde 4.10.1 to 4.10.2 I get the following error on login:

unable to create io-slave, error loading kde-desktop

Anything depending on io-slave, eg dolphin refuses to run. As a result, the desktop is pretty much non-functional although it does load. Tried creating a new account and got the same error.

[Patrick Munzer (p-munzer)]

Restored from backup and reran the update to kde 4.10.2 from muon-update while logged into a blackbox session and got the same result. Restored from a backup again and ran the update a third time from a terminal in a blackbox session with kde not running and no kde applications loaded using apt-get update, apt-get dist-upgrade and the update went through without error. Logged into kde 4.10.2 after the update and everything now seems fine - no more io-slave error. Apparently, there was a problem with doing this update with kde running or with certain kde libs loaded. Updating from a terminal with kde not running and no kde applications running fixed the problem.

[Alexis (alxju)]

Maybe related :
http://ubuntuforums.org/showthread.php?t=2132161
http://forum.ubuntu-fr.org/viewtopic.php?pid=13169331 (french thread. No solution)

[Patrick Munzer (p-munzer)]

Alexis, that doesn't appear to be the same problem. In my case, X loaded and, in fact, kde loaded as well. It's just that nothing requiring io-slave would work which covers a good deal of the kde desktop. The more I think about it, I may just have updated from a mirror that was not completely in sync with the new kde packages which left kde in an inconsistent state. The final update that worked was two days after my initial try and it may be the case that the mirror I used had corrected this problem over those two days.

[Simon Quigley (tsimonq2)]

Thank you for taking the time to report this bug and helping to make Kubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Kubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Kubuntu version. If you test it and it is still an issue, kindly upload the updated logs by running only once:
apport-collect 1165782

and any other logs that are relevant for this particular issue.

[Launchpad Janitor (janitor)]

[Expired for Kubuntu PPA because there has been no activity for 60 days.]