Bug#817908: iceweasel: leaves cruft in /etc/iceweasel/ on upgrade

[Mike Hommey]

On Sun, Mar 13, 2016 at 08:43:04AM +0900, Mike Hommey wrote:
> On Fri, Mar 11, 2016 at 10:25:17PM +0900, Mike Hommey wrote:
> > This all makes no sense. First, it worked when I tried before uploading,
> > but it doesn't work anymore. Second, these dpkg-query messages make no
> > sense, and I don't know where they are coming from. Third, just taking
> > one of the files, there *are* commands to remove the conffiles in
> > iceweasel's post/pre rm/inst, like the following:
> > 
> > dpkg-maintscript-helper rm_conffile /etc/iceweasel/pref/iceweasel.js -- "$@"
> > 
> > Now... looking at dpkg-maintscript-helper, it would seem it is the one
> > doing those dpkg-query requests. So maybe dpkg-maintscript-helper is
> > just broken? Help, dpkg maintainers?
> 
> Some more info from dpkg --debug output:
> 
> D000001: ensure_diversions: new, (re)loading
> D000001: ensure_statoverrides: new, (re)loading
> D000010: ensure_pathname_nonexisting '/var/lib/dpkg/tmp.ci'
> dpkg: regarding .../firefox-esr_45.0esr-1_amd64.deb containing firefox-esr:
>  firefox-esr breaks iceweasel (<< 45)
>   iceweasel (version 44.0.2-1) is present and installed.
> 
> dpkg: error processing archive /tmp/firefox-esr_45.0esr-1_amd64.deb (--install):
>  installing firefox-esr would break iceweasel, and
>  deconfiguration is not permitted (--auto-deconfigure might help)
> D000010: ensure_pathname_nonexisting '/var/lib/dpkg/tmp.ci'
> D000010: ensure_pathname_nonexisting running rm -rf '/var/lib/dpkg/tmp.ci'
> D000010: ensure_pathname_nonexisting '/var/lib/dpkg/reassemble.deb'
> D000010: ensure_pathname_nonexisting '/var/lib/dpkg/tmp.ci'
> (Reading database ... 13915 files and directories currently installed.)
> Preparing to unpack .../iceweasel_45.0esr-1_all.deb ...
> D020000: trigproc_activate_packageprocessing pkg=iceweasel:amd64
> D000200: oldconffsetflags '/etc/iceweasel/pref/iceweasel.js' namenode '/etc/iceweasel/pref/iceweasel.js' flags 4
> D000200: oldconffsetflags '/etc/iceweasel/profile/chrome/userChrome-example.css' namenode '/etc/iceweasel/profile/chrome/userChrome-exa
> mple.css' flags 4
> D000200: oldconffsetflags '/etc/iceweasel/profile/chrome/userContent-example.css' namenode '/etc/iceweasel/profile/chrome/userContent-e
> xample.css' flags 4
> D000200: oldconffsetflags '/etc/iceweasel/profile/localstore.rdf' namenode '/etc/iceweasel/profile/localstore.rdf' flags 4
> D000200: oldconffsetflags '/etc/iceweasel/profile/mimeTypes.rdf' namenode '/etc/iceweasel/profile/mimeTypes.rdf' flags 4
> D000200: oldconffsetflags '/etc/iceweasel/profile/prefs.js' namenode '/etc/iceweasel/profile/prefs.js' flags 4
> D000200: oldconffsetflags '/etc/iceweasel/searchplugins/common/debsearch.xml' namenode '/etc/iceweasel/searchplugins/common/debsearch.x
> ml' flags 4
> D000001: process_archive oldversionstatus=installed
> D000002: fork/exec /var/lib/dpkg/info/iceweasel.prerm ( upgrade 45.0esr-1 )
> D020000: post_script_tasks - ensure_diversions
> D000001: ensure_diversions: same, skipping
> D020000: post_script_tasks - trig_incorporate
> D000002: fork/exec /var/lib/dpkg/tmp.ci/preinst ( upgrade 44.0.2-1 )
> dpkg-query: package 'iceweasel' is not installed
> Use dpkg --info (= dpkg-deb --info) to examine archive files,
> and dpkg --contents (= dpkg-deb --contents) to list their contents.
> dpkg-query: package 'iceweasel' is not installed
> Use dpkg --info (= dpkg-deb --info) to examine archive files,
> and dpkg --contents (= dpkg-deb --contents) to list their contents.
> dpkg-query: package 'iceweasel' is not installed
> Use dpkg --info (= dpkg-deb --info) to examine archive files,
> and dpkg --contents (= dpkg-deb --contents) to list their contents.
> dpkg-query: package 'iceweasel' is not installed
> Use dpkg --info (= dpkg-deb --info) to examine archive files,
> and dpkg --contents (= dpkg-deb --contents) to list their contents.
> dpkg-query: package 'iceweasel' is not installed
> Use dpkg --info (= dpkg-deb --info) to examine archive files,
> and dpkg --contents (= dpkg-deb --contents) to list their contents.
> dpkg-query: package 'iceweasel' is not installed
> Use dpkg --info (= dpkg-deb --info) to examine archive files,
> and dpkg --contents (= dpkg-deb --contents) to list their contents.
> dpkg-query: package 'iceweasel' is not installed
> Use dpkg --info (= dpkg-deb --info) to examine archive files,
> and dpkg --contents (= dpkg-deb --contents) to list their contents.
> D020000: post_script_tasks - ensure_diversions
> D000001: ensure_diversions: same, skipping
> D020000: post_script_tasks - trig_incorporate
> Unpacking iceweasel (45.0esr-1) over (44.0.2-1) ...
> 
> 
> So what happens here is that for some reason, dpkg-query, run by
> dpkg-maintscript-helper during preinst, thinks the package is not
> installed, despite the preinst being invoked for an upgrade. This makes
> no sense from the perspective of the preinst, but that could be a side
> effect of the versioned Breaks.
> 
> Anyways, even if dpkg is fixed for this, I need this to work in stable,
> so I'll have to find a workaround. I think I can get away with it by not
> having the usual package transition pattern.

Aaaand, it doesn't work either...

It still says:

Preparing to unpack .../iceweasel_45.0esr-2_all.deb ...
D020000: trigproc_activate_packageprocessing pkg=iceweasel:amd64
D000200: oldconffsetflags '/etc/iceweasel/pref/iceweasel.js' namenode '/etc/iceweasel/pref/iceweasel.js' flags 4
D000200: oldconffsetflags '/etc/iceweasel/profile/chrome/userChrome-example.css' namenode '/etc/iceweasel/profile/chrome/userChrome-exa
mple.css' flags 4
D000200: oldconffsetflags '/etc/iceweasel/profile/chrome/userContent-example.css' namenode '/etc/iceweasel/profile/chrome/userContent-e
xample.css' flags 4
D000200: oldconffsetflags '/etc/iceweasel/profile/localstore.rdf' namenode '/etc/iceweasel/profile/localstore.rdf' flags 4
D000200: oldconffsetflags '/etc/iceweasel/profile/mimeTypes.rdf' namenode '/etc/iceweasel/profile/mimeTypes.rdf' flags 4
D000200: oldconffsetflags '/etc/iceweasel/profile/prefs.js' namenode '/etc/iceweasel/profile/prefs.js' flags 4
D000200: oldconffsetflags '/etc/iceweasel/searchplugins/common/debsearch.xml' namenode '/etc/iceweasel/searchplugins/common/debsearch.x
ml' flags 4
D000001: process_archive oldversionstatus=installed
D000002: fork/exec /var/lib/dpkg/info/iceweasel.prerm ( upgrade 45.0esr-2 )
D020000: post_script_tasks - ensure_diversions
D000001: ensure_diversions: same, skipping
D020000: post_script_tasks - trig_incorporate
D000002: fork/exec /var/lib/dpkg/tmp.ci/preinst ( upgrade 44.0.2-1 )
dpkg-query: package 'iceweasel' is not installed
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
dpkg-query: package 'iceweasel' is not installed
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
dpkg-query: package 'iceweasel' is not installed
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
dpkg-query: package 'iceweasel' is not installed
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
dpkg-query: package 'iceweasel' is not installed
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
dpkg-query: package 'iceweasel' is not installed
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
dpkg-query: package 'iceweasel' is not installed
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
D020000: post_script_tasks - ensure_diversions
D000001: ensure_diversions: same, skipping
D020000: post_script_tasks - trig_incorporate
Unpacking iceweasel (45.0esr-2) over (44.0.2-1) ...

Mike