Public bug reported:
Apt is erasing the previous contents of my terminal window. The output
from commands that had been run prior to running apt were entirely
erased from the terminal's historical record.
This is seriously bad etiquette, you should not ever take a dump all
over the historical record of a terminal's output. The scroll-back
feature is intentionally there so you can show a linear sequence of
events. Back in the day consoles were connected directly to printers,
and in fact some companies still do this for security auditing purposes,
so you have to presume the terminal can only be written to... this is
why it's called standard out. Overwriting is a serious no no. Also I'm
not happy about apt breaking scripted execution (wtf were you
thinking?), but this overwriting of the console record is a flagrant
violation of proper etiquette. Please do the needful!
Steps to reproduce:
fio --randrepeat=1 --ioengine=libaio --direct=0 --gtod_reduce=1
--name=test --filename=test -iodepth=32 --size=32G --readwrite=randrw
--rwmixread=60 --bsrange=4k-1024k --numjobs=6 --group_reporting=1
-random_distribution=zipf:0.5 --loops 3 --norandommap=1
--random_generator=lfsr --unified_rw_reporting=1
apt install --reinstall zfs-dkms
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: apt 1.6.11
ProcVersionSignature: Ubuntu 5.0.0-27.28~18.04.1-lowlatency 5.0.21
Uname: Linux 5.0.0-27-lowlatency x86_64
NonfreeKernelModules: zfs zunicode zavl icp zlua zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
Date: Tue Sep 10 16:58:22 2019
InstallationDate: Installed on 2019-05-23 (110 days ago)
InstallationMedia: Ubuntu-Server 18.04.2 LTS "Bionic Beaver" - Release amd64
(20190210)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: apt
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: apt (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic third-party-packages
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https://bugs.launchpad.net/bugs/1843508
Title:
Apt erases console output from commands that were run prior to it.
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