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Why does installation of packages fail with 'Fails to initialize backend. This may occur if other packaging tools are being used simultaneously.' error?

asked 2014-01-30 19:57:51 -0500

jaf3139 gravatar image

updated 2014-09-28 13:16:48 -0500

mether gravatar image

I am a Linux noob taking a fedora class in college.

Any time I try to install anything on my fedora20 system, it flashes up this error message:

Failed to initialize backend. This may occur if other packaging tools are being used simultaneously.

I've been trying to install adobe flash, drivers for my epson wf-2550 printer, and other programs; with this being the end result.

When I try to install flash, I do it from adobe's website or by clicking the flash link from youtube.

When trying to install the driver for my printer, I do it from the add printer option on fedora.

I also noticed that the driver for my graphics card would not install, causing my card to overheat (hope it's not wrecked.)

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answered 2014-01-31 20:54:40 -0500

jaf3139 gravatar image

updated 2014-01-31 22:24:03 -0500

NickTux gravatar image

I found the solution: I typed yum --version to see what versions I had. I then typed yum erase (the build that was messed up) and then I typed yum reinstall (version).

I also ran yum-complete-transaction --cleanup-only . I was then able to install adobe flash and my printer is working properly. I still need to find the correct driver for my graphics card(if it didn't fry from overheating.)

Thank you to those of you who tried to help me figure this one out.

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answered 2014-01-30 20:08:48 -0500

FranciscoD_ gravatar image

As the message says, package kit or yum may already be running in the background. You have two options:

  1. Wait for yum/packagekit to finish (recommended).
  2. Kill the running process (not recommended)

I haven't had this issue in a while now. Have you updated your system yet (sudo yum update)? Also, how are you attempting to install flash etc.? (Please edit your question and add this information.)

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I tried (sudo yum update) still have the same issue.

Now that you mention it I think I remember Fedora crashing when I first updated it a few days ago (not sure if that would cause this.)

I tried (yum-complete-transaction) and it tells me that one process needs completing with 455 elements left to run, but it never does anything after that.

Ran (yum history list) then (yum history info 2) and it revealed this error 1 warning: %postun(control-center-1:3.10.2-2.fc20.x86_64) scriptlet failed signal 15

jaf3139 gravatar imagejaf3139 ( 2014-01-31 17:36:58 -0500 )edit

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Asked: 2014-01-30 19:57:51 -0500

Seen: 4,927 times

Last updated: Jan 31 '14