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[Launchpad Bug Tracker <1569400@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package ubuntu-dev-tools - 0.155ubuntu2

---------------
ubuntu-dev-tools (0.155ubuntu2) xenial; urgency=medium

  * mk-sbuild: fix failure to copy /etc/localtime into the target
    chroot.  LP: #1569400.

 -- Steve Langasek <steve.langasek@xxxxxxxxxx>  Fri, 01 Jul 2016
12:21:58 -0700

** Changed in: ubuntu-dev-tools (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1569400

Title:
  mk-sbuild fails with cp: /etc/localtime... are the same file

Status in ubuntu-dev-tools package in Ubuntu:
  Fix Released
Status in ubuntu-dev-tools source package in Xenial:
  Fix Released

Bug description:
  [SRU Justification]
  The mk-sbuild command fails to completely set up its schroot environment if /etc/localtime is a symlink to the default timezone file (Etc/UTC), due to wrong 'cp' options.  This makes the tool unusable in xenial on systems with a default config.  It also causes the tool to do the wrong thing on systems with a user-configured timezone, as the Etc/UTC file within the chroot environment will be overwritten by the host system's zone file, rather than changing the *target* of the /etc/localtime symlink.

  [Test case]
  1. Verify that /etc/localtime is a symlink to /usr/share/zoneinfo/Etc/UTC on your system.
  2. Install ubuntu-dev-tools.
  3. Run 'mk-sbuild yakkety'.  When prompted to edit ~/.sbuildrc, you can accept the defaults.
  4. Run 'sg sbuild' to make sure you are in the 'sbuild' group in case this is newly added.
  5. Run 'mk-sbuild yakkety' again.  Verify that the command output ends with the line:
  cp: '/etc/localtime' and '/var/lib/schroot/chroots/yakkety-amd64/etc/localtime' are the same file.
  6. Run 'echo $?' to verify that the return value of mk-sbuild is 1.
  7. Install ubuntu-dev-tools from xenial-proposed.
  8. Run 'sudo rm -rf /var/lib/schroot/chroots/yakkety-amd64' to remove the incompletely-bootstrapped directory from the previous attempt.
  9. Run 'mk-sbuild yakkety' again.  Confirm that the command exits 0.
  10. Confirm that 'schroot -l' shows the yakkety-amd64 chroot.

  [Regression potential]
  Minimal.  We don't want to dereference /etc/localtime when copying it into the target environment; this never DTRT and often fails altogether. The fix for this is small and targeted.

  
  On my system, /etc/localtime points to Etc/UTC. When I run mk-sbuild, it fails as follows:

  I: Base system installed successfully.
  cp: '/etc/localtime' and '/var/lib/schroot/chroots/xenial-amd64/etc/localtime' are the same file
  rbasak@diglett:~$ stat /etc/localtime
    File: '/etc/localtime' -> '/usr/share/zoneinfo/Etc/UTC'
    Size: 27              Blocks: 0          IO Block: 4096   symbolic link
  Device: fa00h/64000d    Inode: 24904635    Links: 1
  Access: (0777/lrwxrwxrwx)  Uid: (    0/    root)   Gid: (    0/    root)
  Access: 2016-04-12 14:34:01.913544692 +0000
  Modify: 2016-04-09 14:16:56.000000000 +0000
  Change: 2016-04-11 14:33:38.788003973 +0000
   Birth: -
  rbasak@diglett:~$ stat /var/lib/schroot/chroots/xenial-amd64/etc/localtime
    File: '/var/lib/schroot/chroots/xenial-amd64/etc/localtime' -> '/usr/share/zoneinfo/Etc/UTC'
    Size: 27              Blocks: 0          IO Block: 4096   symbolic link
  Device: fa00h/64000d    Inode: 25958842    Links: 1
  Access: (0777/lrwxrwxrwx)  Uid: (    0/    root)   Gid: (    0/    root)
  Access: 2016-04-12 14:39:39.042359630 +0000
  Modify: 2016-04-12 14:39:39.038359620 +0000
  Change: 2016-04-12 14:39:39.038359620 +0000
   Birth: -
  rbasak@diglett:~$

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-dev-tools 0.155 [modified: usr/bin/mk-sbuild]
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  Date: Tue Apr 12 14:52:21 2016
  JournalErrors:
   Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system.
         Users in the 'systemd-journal' group can see all messages. Pass -q to
         turn off this notice.
   No journal files were opened due to insufficient permissions.
  PackageArchitecture: all
  SourcePackage: ubuntu-dev-tools
  UpgradeStatus: No upgrade log present (probably fresh install)

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