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 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/64000dInode: 24904635Links: 1
Access: (0777/lrwxrwxrwx) Uid: (0/root) Gid: (0/root)
Access: 2016-04-12 14:34:01.913544692 +
Modify: 2016-04-09 14:16:56.0 +
Change: 2016-04-11 14:33:38.788003973 +
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/64000dInode: 25958842Links: 1
Access: (0777/lrwxrwxrwx) Uid: (0/root) Gid: (0/root)
Access: 2016-04-12 14:39:39.042359630 +
Modify: 2016-04-12 14:39:39.038359620 +
Change: 2016-04-12 14:39:39.038359620 +
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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