Bug#816335: unable to delete old directory '/etc/iceweasel/profile': Directory not empty

[積丹尼 Dan Jacobson]

Package: iceweasel
Version: 46.0~a2+20160217064514-1

You need to reverse the order of steps, and also remove empty
directories, and more files, to avoid the user getting these messages.

Unpacking iceweasel (46.0~a2+20160217064514-1) over (45.0~a2+20160107004004-1) ...
dpkg: warning: unable to delete old directory '/etc/iceweasel/profile/chrome': Directory not empty
dpkg: warning: unable to delete old directory '/etc/iceweasel/profile': Directory not empty

Soon after I then do

$ find /etc/iceweasel/ -ls
   132855      4 drwxr-xr-x   5 root     root         4096  7月 27  2013 /etc/iceweasel/
   132858      4 drwxr-xr-x   3 root     root         4096  3月  1 07:23 /etc/iceweasel/profile
   132863      4 -rw-r--r--   1 root     root          473  7月 26  2013 /etc/iceweasel/profile/prefs.js.dpkg-remove
   132865      4 -rw-r--r--   1 root     root          366  7月 26  2013 /etc/iceweasel/profile/localstore.rdf.dpkg-remove
   132860      4 drwxr-xr-x   2 root     root         4096  3月  1 07:23 /etc/iceweasel/profile/chrome
   132862      4 -rw-r--r--   1 root     root          761  7月 26  2013 /etc/iceweasel/profile/chrome/userContent-example.css.dpkg-remove
   132861      4 -rw-r--r--   1 root     root         1165  7月 26  2013 /etc/iceweasel/profile/chrome/userChrome-example.css.dpkg-remove
   132859      4 -rw-r--r--   1 root     root          569  7月 26  2013 /etc/iceweasel/profile/mimeTypes.rdf.dpkg-remove
   132856      4 drwxr-xr-x   2 root     root         4096  3月  1 07:23 /etc/iceweasel/pref
   133364      4 -rw-r--r--   1 root     root         1219  2月 18 15:30 /etc/iceweasel/pref/iceweasel.js.dpkg-new
   133140      4 -rw-r--r--   1 root     root         1219  9月  7 17:36 /etc/iceweasel/pref/iceweasel.js
   132866      4 drwxr-xr-x   4 root     root         4096  7月 27  2013 /etc/iceweasel/searchplugins
   132876      4 drwxr-xr-x   2 root     root         4096  3月  1 07:23 /etc/iceweasel/searchplugins/common
   133365      4 -rw-r--r--   1 root     root         1245  2月 18 12:07 /etc/iceweasel/searchplugins/common/debsearch.xml.dpkg-new
   132878      4 -rw-r--r--   1 root     root         1245  7月 26  2013 /etc/iceweasel/searchplugins/common/debsearch.xml
   132867      4 drwxr-xr-x   3 root     root         4096  7月 27  2013 /etc/iceweasel/searchplugins/locale
   132868      4 drwxr-xr-x   2 root     root         4096  9月  9 07:00 /etc/iceweasel/searchplugins/locale/en-US

A little later I do it again

$ find /etc/iceweasel/ -ls
   132855      4 drwxr-xr-x   5 root     root         4096  7月 27  2013 /etc/iceweasel/
   132858      4 drwxr-xr-x   3 root     root         4096  3月  1 07:30 /etc/iceweasel/profile
   132860      4 drwxr-xr-x   2 root     root         4096  3月  1 07:30 /etc/iceweasel/profile/chrome
   132856      4 drwxr-xr-x   2 root     root         4096  3月  1 07:30 /etc/iceweasel/pref
   133140      4 -rw-r--r--   1 root     root         1219  9月  7 17:36 /etc/iceweasel/pref/iceweasel.js
   132866      4 drwxr-xr-x   4 root     root         4096  7月 27  2013 /etc/iceweasel/searchplugins
   132876      4 drwxr-xr-x   2 root     root         4096  3月  1 07:30 /etc/iceweasel/searchplugins/common
   132878      4 -rw-r--r--   1 root     root         1245  7月 26  2013 /etc/iceweasel/searchplugins/common/debsearch.xml
   132867      4 drwxr-xr-x   3 root     root         4096  7月 27  2013 /etc/iceweasel/searchplugins/locale
   132868      4 drwxr-xr-x   2 root     root         4096  9月  9 07:00 /etc/iceweasel/searchplugins/locale/en-US

One also sees

Setting up iceweasel (46.0~a2+20160217064514-1) ...
Removing obsolete conffile /etc/iceweasel/profile/chrome/userChrome-example.css ...
Removing obsolete conffile /etc/iceweasel/profile/chrome/userContent-example.css ...
Removing obsolete conffile /etc/iceweasel/profile/localstore.rdf ...
Removing obsolete conffile /etc/iceweasel/profile/mimeTypes.rdf ...
Removing obsolete conffile /etc/iceweasel/profile/prefs.js ...