install.txt

# fluentd
    curl -L http://packages.treasure-data.com/debian/RPM-GPG-KEY-td-agent | sudo apt-key add -
    sudo apt-add-repository 'deb http://packages.treasuredata.com/2/ubuntu/trusty/ trusty contrib'
    sudo apt-get -yq update
    sudo apt-get -yq install td-agent

td-agent2-install-error.txt

==> default: Fetched 1,588 B in 36s (43 B/s)
==> default: W
==> default: : 
==> default: Failed to fetch http://packages.treasuredata.com/2/ubuntu/trusty/dists/trusty/InRelease  Unable to find expected entry 'contrib/binary-i386/Packages' in Release file (Wrong sources.list entry or malformed file)
==> default: W
==> default: : 
==> default: Failed to fetch http://packages.treasuredata.com/2/ubuntu/trusty/dists/trusty/contrib/binary-amd64/Packages  Hash Sum mismatch
==> default: E
==> default: : 
==> default: Some index files failed to download. They have been ignored, or old ones used instead.
==> default: Reading package lists...
==> default: Building dependency tree...
==> default: Reading state information...
==> default: E
==> default: : 
==> default: Unable to locate package td-agent
==> default: sudo: /opt/td-agent/embedded/bin/fluent-gem: command not found
==> default: sudo: /opt/td-agent/embedded/bin/fluent-gem: command not found
==> default: sudo: /opt/td-agent/embedded/bin/fluent-gem: command not found
==> default: td-agent: unrecognized service
==> default: td-agent: unrecognized service

# uname -a
Linux production-blue-do5.tachikoma.io 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.1 LTS"

    sudo apt-add-repository 'deb [arch=amd64] http://packages.treasuredata.com/2/ubuntu/trusty/ trusty contrib'

==> default: W
==> default: : 
==> default: Failed to fetch http://packages.treasuredata.com/2/ubuntu/trusty/dists/trusty/contrib/binary-amd64/Packages  Hash Sum mismatch
==> default: E
==> default: : 
==> default: Some index files failed to download. They have been ignored, or old ones used instead.
==> default: Reading package lists...
==> default: Building dependency tree...
==> default: Reading state information...
==> default: E
==> default: : 
==> default: Unable to locate package td-agent
==> default: sudo: /opt/td-agent/embedded/bin/fluent-gem: command not found
==> default: sudo: /opt/td-agent/embedded/bin/fluent-gem: command not found
==> default: sudo: /opt/td-agent/embedded/bin/fluent-gem: command not found
==> default: td-agent: unrecognized service
==> default: td-agent: unrecognized service

Did you ever find a resolution for this? I'm running into the same thing.

Me too.