[Bug 1324399] [NEW] apt-get failing to show progress with yes command

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Mathew Hodson (mathew-hodson):

When running this command on Ubuntu 14.04 amd64 release:
yes "" | apt-get -y install tftpd-hpa
It never finishes... Only shows black screen on the terminal.
I know it's weird to use yes "" for this command. However, just to show it does not make any sense the command can not be finished.
This issue does not occur on Ubuntu 13.10, nor on Debian Sid.

The following is some info about this system:
ProblemType: Bug
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Thu May 29 15:06:52 2014
Dependencies:
 dpkg 1.17.5ubuntu5.2
 gcc-4.8-base 4.8.2-19ubuntu1
 gcc-4.9-base 4.9-20140406-0ubuntu1
 gnupg 1.4.16-1ubuntu2
 gpgv 1.4.16-1ubuntu2
 libacl1 2.2.52-1
 libapt-pkg4.12 1.0.1ubuntu2
 libattr1 1:2.4.47-1ubuntu1
 libbz2-1.0 1.0.6-5
 libc6 2.19-0ubuntu6
 libgcc1 1:4.9-20140406-0ubuntu1
 liblzma5 5.1.1alpha+20120614-2ubuntu2
 libpcre3 1:8.31-2ubuntu2
 libreadline6 6.3-4ubuntu2
 libselinux1 2.2.2-1ubuntu0.1
 libstdc++6 4.8.2-19ubuntu1
 libtinfo5 5.9+20140118-1ubuntu1
 libusb-0.1-4 2:0.1.12-23.3ubuntu1
 multiarch-support 2.19-0ubuntu6
 readline-common 6.3-4ubuntu2
 tar 1.27.1-1
 ubuntu-keyring 2012.05.19
 zlib1g 1:1.2.8.dfsg-1ubuntu1
DistroRelease: Ubuntu 14.04
Package: apt 1.0.1ubuntu2
PackageArchitecture: amd64
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
SourcePackage: apt
Tags:  trusty
Uname: Linux 3.13.0-27-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
_MarkForUpload: True

** Affects: apt (Ubuntu)
     Importance: High
         Status: Fix Released

** Affects: apt (Ubuntu Trusty)
     Importance: Undecided
         Status: In Progress

** Affects: apt (Debian)
     Importance: Unknown
         Status: Fix Released


** Tags: verification-failed
-- 
apt-get failing to show progress with yes command
https://bugs.launchpad.net/bugs/1324399
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