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Hai,

  1. I am new to linux and ROS. I am using 12.04 (32 bit) in a 64 bit machine. I tried to install ros-hydro package. After fetching (sudo apt-get install) 90-95% package, download stops by giving an error:

unable to fetch some archives maybe run apt-get update or try with fix-missing

Earlier, I installed same package in a 32 bit machine without any error.

  1. Links that are failed to open in terminal window are accessible through web browser in UBUNTU O.S.

  2. I am accessing internet through co-axial cable modem (does n't have any proxy settings)

Thanks, kota


Originally posted by jkota on ROS Answers with karma: 21 on 2014-07-30

Post score: 2

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2 Answers 2

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It's possible that you hit the repository at a bad time.

Try running sudo apt-get update and then retrying your installation.


Originally posted by ahendrix with karma: 47576 on 2014-07-31

This answer was ACCEPTED on the original site

Post score: 1


Original comments

Comment by tfoote on 2014-08-14:
I've had trouble a couple times in the last week accessing all the ubuntu repositories. It's unusual but does happen sometimes.

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On top of Hendrix's suggestion (meaning after you do an apt-get update) you might also want to try this:

apt-get --download-only

in order to force Ubuntu to download all of your stuff first; No install will take place. If the operation fails here, then, yes, it is a repository error. If it succeeds, move to the regular apt-get install and check if the error happens again.

Honestly, Hydro on Ubuntu 12.04 is VERY vanilla. Shouldn't fail at all.

Just in case, post you entire apt-get command, so we know what you are installing.


Originally posted by ccapriotti with karma: 255 on 2014-07-31

This answer was NOT ACCEPTED on the original site

Post score: 1

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