error setting ownership of symlink `<..>/hot.json.dpkg-new': Operation not permitte

[Daniel Holbach]

Trying to install ureadit from the software store, I get:

(Reading database ... 0 files and directories currently installed.)
Unpacking com.ubuntu.developer.mhall119.ureadit (from .../com.ubuntu.developer.mhall119.ureadit-0.9.2.click) ...
dpkg: error processing /home/phablet/.local/share/download_manager/{59168886-2ef7-41ed-bae7-1f4c1f98a505}/com.ubuntu.developer.mhall119.ureadit-0.9.2.click (--install):
 error setting ownership of symlink `/opt/click.ubuntu.com/com.ubuntu.developer.mhall119.ureadit/0.9.2/debug/hot.json.dpkg-new': Operation not permitted
Errors were encountered while processing:
 /home/phablet/.local/share/download_manager/{59168886-2ef7-41ed-bae7-1f4c1f98a505}/com.ubuntu.developer.mhall119.ureadit-0.9.2.click
Traceback (most recent call last):
  File "/usr/bin/click", line 84, in <module>
    sys.exit(main())
  File "/usr/bin/click", line 79, in main
    mod.run(args)
  File "/usr/lib/python3/dist-packages/click/commands/install.py", line 41, in run
    installer.install(package_path, user=options.user)
  File "/usr/lib/python3/dist-packages/click/install.py", line 264, in install
    env=env, **kwargs)
  File "/usr/lib/python3.3/subprocess.py", line 544, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['dpkg', '--force-not-root', '--force-bad-path', '--instdir', '/opt/click.ubuntu.com/com.ubuntu.developer.mhall119.ureadit/0.9.2', '--admindir', '/opt/click.ubuntu.com/com.ubuntu.developer.mhall119.ureadit/0.9.2/.click', '--path-exclude', '*/.click/*', '--log', '/opt/click.ubuntu.com/.click/log', '--no-triggers', '--install', '/home/phablet/.local/share/download_manager/{59168886-2ef7-41ed-bae7-1f4c1f98a505}/com.ubuntu.developer.mhall119.ureadit-0.9.2.click']' returned non-zero exit status 1
root@ubuntu-phablet:/#

[Loïc Minier (lool)]

I can reproduce this and straced the whole of packagekitd doing the install; the failing syscall seems to be lchown32 on a newly created symlink:

1893 read(8, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 512) = 512
1893 lstat64("/opt/click.ubuntu.com/com.ubuntu.developer.mhall119.ureadit/0.9.2/debug/hot.json", 0xbeca0c90) = -1 ENOENT (No such file or directory)
1893 rename("/opt/click.ubuntu.com/com.ubuntu.developer.mhall119.ureadit/0.9.2/debug/hot.json.dpkg-tmp", "/opt/click.ubuntu.com/com.ubuntu.developer.mhall119.ureadit/0.9.2/debug/hot.json") = -1 ENOENT (No such file or directory)
1893 rmdir("/opt/click.ubuntu.com/com.ubuntu.developer.mhall119.ureadit/0.9.2/debug/hot.json.dpkg-new") = -1 ENOENT (No such file or directory)
1893 rmdir("/opt/click.ubuntu.com/com.ubuntu.developer.mhall119.ureadit/0.9.2/debug/hot.json.dpkg-tmp") = -1 ENOENT (No such file or directory)
1893 symlink("frontpage.json", "/opt/click.ubuntu.com/com.ubuntu.developer.mhall119.ureadit/0.9.2/debug/hot.json.dpkg-new") = 0
1893 lchown32("/opt/click.ubuntu.com/com.ubuntu.developer.mhall119.ureadit/0.9.2/debug/hot.json.dpkg-new", 0, 0) = -1 EPERM (Operation not permitted)
1893 write(2, "dpkg: error processing /home/pha"..., 322) = 322

dpkg-deb -c com.ubuntu.developer.mhall119.ureadit-0.9.2.click\?noauth\=1 |grep hot
lrwxrwxrwx root/root 0 2013-03-23 15:57 ./debug/hot.json -> frontpage.json
lrwxrwxrwx root/root 0 2013-03-23 16:06 ./debug/r/ubuntu/hot.json -> ../ubuntu.json

phablet@ubuntu-phablet:~$ dpkg-deb -c com.ubuntu.developer.mhall119.ureadit-0.9.2.click\?noauth\=1 |grep frontpage
-rw-rw-r-- root/root 40728 2013-03-23 15:47 ./debug/frontpage.json
lrwxrwxrwx root/root 0 2013-03-23 15:57 ./debug/hot.json -> frontpage.json

dpkg-deb -c com.ubuntu.developer.mhall119.ureadit-0.9.2.click\?noauth\=1 |grep ^l
lrwxrwxrwx root/root 0 2013-03-23 15:57 ./debug/hot.json -> frontpage.json
lrwxrwxrwx root/root 0 2013-03-23 16:06 ./debug/r/ubuntu/hot.json -> ../ubuntu.json

Cheers,

[Colin Watson (cjwatson)]

Already fixed yesterday in bzr.

[Launchpad Janitor (janitor)]

This bug was fixed in the package click - 0.4.2

---------------
click (0.4.2) saucy; urgency=low

  * Suppress dpkg calls to lchown when not running as root (LP: #1220125).
 -- Colin Watson <email address hidden> Tue, 03 Sep 2013 10:12:29 +0100