[Bug 2017414] Re: cp --parents fails without reason

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: coreutils (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/2017414

Title:
  cp --parents fails without reason

Status in coreutils package in Ubuntu:
  Confirmed

Bug description:
  Upstream bug: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63245

  The following example of a copy command fails without reason:

  # rm -Rf /tmp/f && mkdir /tmp/f && cp --verbose -t /tmp/f -L --preserve=all --parents /etc/apt/sources.list && echo yes ; ls -lR /tmp/f/etc/apt/sources.list /etc/apt/sources.list
  /etc -> /tmp/f/etc
  /etc/apt -> /tmp/f/etc/apt
  '/etc/apt/sources.list' -> '/tmp/f/etc/apt/sources.list'
  cp: ‘etc/apt’: No such file or directory
  -rw-r--r-- 1 root root 2437 Apr 23 09:53 /etc/apt/sources.list
  -rw-r--r-- 1 root root 2437 Apr 23 09:53 /tmp/f/etc/apt/sources.list
  #

  /tmp is on the same filesystem as /. The same on Ubuntu 22.04 works
  without a problem:

  # rm -Rf /tmp/f && mkdir /tmp/f && cp --verbose -t /tmp/f -L --preserve=all --parents /etc/apt/sources.list && echo yes ; ls -lR /tmp/f/etc/apt/sources.list /etc/apt/sources.list
  /etc -> /tmp/f/etc
  /etc/apt -> /tmp/f/etc/apt
  '/etc/apt/sources.list' -> '/tmp/f/etc/apt/sources.list'
  yes
  -rw-r--r-- 1 root root 263 Mär 26 15:20 /etc/apt/sources.list
  -rw-r--r-- 1 root root 263 Mär 26 15:20 /tmp/f/etc/apt/sources.list
  #

  Why I omit the --preservce=all then it works without a problem:

  # rm -Rf /tmp/f && mkdir /tmp/f && cp --verbose -t /tmp/f -L --parents /etc/apt/sources.list && echo yes ; ls -lR /tmp/f/etc/apt/sources.list /etc/apt/sources.list
  /etc -> /tmp/f/etc
  /etc/apt -> /tmp/f/etc/apt
  '/etc/apt/sources.list' -> '/tmp/f/etc/apt/sources.list'
  yes
  -rw-r--r-- 2 root root 2437 Apr 23 09:53 /etc/apt/sources.list
  -rw-r--r-- 1 root root 2437 Apr 23 11:02 /tmp/f/etc/apt/sources.list
  #

  Also, when I only use --preserve=mode, then it again fails:

  # rm -Rf /tmp/f && mkdir /tmp/f && cp --verbose -t /tmp/f -L --preserve=mode --parents /etc/apt/sources.list && echo yes ; ls -lR /tmp/f/etc/apt/sources.list /etc/apt/sources.list
  /etc -> /tmp/f/etc
  /etc/apt -> /tmp/f/etc/apt
  '/etc/apt/sources.list' -> '/tmp/f/etc/apt/sources.list'
  cp: ‘etc/apt’: No such file or directory
  -rw-r--r-- 2 root root 2437 Apr 23 09:53 /etc/apt/sources.list
  -rw-r--r-- 1 root root 2437 Apr 23 11:02 /tmp/f/etc/apt/sources.list
  #

  Is this a bug in cp or something else?

  I'm one of the maintainers of Relax-and-Recover (rear) and noticed
  this in https://github.com/rear/rear/issues/2972

  OS Release Info:
  PRETTY_NAME="Ubuntu 23.04"
  NAME="Ubuntu"
  VERSION_ID="23.04"
  VERSION="23.04 (Lunar Lobster)"
  VERSION_CODENAME=lunar
  ID=ubuntu
  ID_LIKE=debian
  HOME_URL="https://www.ubuntu.com/"
  SUPPORT_URL="https://help.ubuntu.com/"
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
  PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
  UBUNTU_CODENAME=lunar
  LOGO=ubuntu-logo

  Coreutils version:

  # cp --version
  cp (GNU coreutils) 9.1

  # dpkg-query -l coreutils
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name           Version      Architecture Description
  +++-==============-============-============-=================================
  ii  coreutils      9.1-1ubuntu2 amd64        GNU core utilities

  ProblemType: Bug
  DistroRelease: Ubuntu 23.04
  Package: coreutils 9.1-1ubuntu2
  ProcVersionSignature: Ubuntu 6.2.0-20.20-generic 6.2.6
  Uname: Linux 6.2.0-20-generic x86_64
  ApportVersion: 2.26.1-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Sun Apr 23 10:48:56 2023
  InstallationDate: Installed on 2023-04-23 (0 days ago)
  InstallationMedia: Ubuntu-Server 23.04 "Lunar Lobster" - Release amd64 (20230415)
  SourcePackage: coreutils
  UpgradeStatus: No upgrade log present (probably fresh install)

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