shared-mime-info-0.7-ubuntu1 update is broken

downgraded to 0.60-2 and everything works again as it should.

Affects me as well, same behavior, same workaround --> marking as confirmed.

This has the potential to affect a lot of users, so I am setting this to high.

not confirming the issue there, did you try restarting nautilus? do you have any error in .xsession-errors?

I don't know if this is related. I am hitting this, and I also notice that Pan (the newsreader) is no longer rendering image/jpeg mime-type articles in the preview/data window. If that doesn't go away when this is fixed, I will log a separate bug.

trying in a guest session there is no such issue either

Sebastien Bacher, I've restarted 4 times going from a complete shutdown back into ubuntu and the issue remains. After downgrading it was working without a reboot. Perhaps it's related to a different package? I posted the packages I installed since my last restart (16-ish hours) over on the ubuntu forums if that's helpful to you. http://ubuntuforums.org/showpost.php?p=8063696&postcount=6

Same problem here, nautilus treats every file type as a text file.

But, it's not only nautilus is at fault. Using a terminal to open a pdf file with evince gives the error message:

File type plain text document (text/plain) is not supported.

However, using eog from a terminal to open a png file works normally, although the same file can't be opened through nautllus.

File-roller also works normally from a terminal, but fails through nautilus.

With the same batch of updates, evince now refuses to open PDFs.

Confirmed. Any files seen like a "simple text file"

This bug affects only the user. Opening a file while in root nautilus works as it should.

may i add, that another side effect/bug to this package is that icons become blury and pixelated when stretched on the desktop

Same problem encountered here..downgrade to 0.60-2 worked without reboot

The command rm -rf ~/.local/share/mime/ fixes it.
This looks like a conflict between the system's and the user's mime database.

thanks jacques, it works for me.

The issue appears to be the binary cache format (~/.local/share/mime/mime.cache) has changed from version 1.1 to 1.2 but what is reading this file is treating it as in 1.1 format. You can update this cache file by running:
$ update-mime-database.real -V ~/.local/share/mime/

Should we make another revision of this version (0ubuntu2?) that triggers a cache removal/update automatically during the package update so users don't have the problem?

We need to find what is reading the cache wrong - we either need to fix that or revert to the old format

The issue is in glib, here are the commits that fix it:
http://git.gnome.org/cgit/glib/commit/?id=7c27df1feeea1d6ab8b927285cecc4ac34db8b06
http://git.gnome.org/cgit/glib/commit/?id=e1643fd76daf66ccffd9e6818e4f4ec8272e2a51

Thanks Robert for fixing that quickly!

This bug was fixed in the package glib2.0 - 2.22.1-0ubuntu2

---------------
glib2.0 (2.22.1-0ubuntu2) karmic; urgency=low

  * debian/patches/10_xdgmime_cache.patch:
    - Support xdg mime cache format 1.2 (LP: #444962)

 -- Robert Ancell <email address hidden> Wed, 07 Oct 2009 15:34:48 +1100

For me neither deleting the mime directory nor the update-mime-database.real command fixes my problems. So I'm still here with everything text/plain. Will an update eventually fix this?

It was the same for me; however downgrading to 0.60-2 works.

Find shared-mime-info_0.60-2_i386.deb, if it's not still around eg

http://ftp.us.debian.org/debian/pool/main/s/shared-mime-info/shared-mime-info_0.60-2_i386.deb

and do

sudo dpkg -i shared-mime-info_0.60-2_i386.deb

It's all fine now: just apply the latest upgrades, which include the glib2.0 fix

I have just upgraded and nothing was fixed, but this command worked:

update-mime-database.real -V ~/.local/share/mime/

As i see in previous message, i removed .local/share/mime/ so
update-mime-database.real -V ~/.local/share/mime/ dont work for me and
the recent update didnt fix anything...so i have to downgrade
shared-mime.... any other tricks to recreate .local/share/mime ???

Thank You

Bend3r's comment applies to me too. Perhaps a restart would have worked too, but I didn't get to try it. Could anyone verify whether restarting after the glib upgrade fixes things?

Please make sure that your libglib2.0-0 is of 2.22.1-0ubuntu2. I checked it minutes ago and the update has not yet been pushed until now.

Can confirm this bug from the previous round of updates.

Temp Fix:
sudo update-mime-database /usr/share/mime
sudo update-desktop-database

and Nautilus restart.

Same here on AMD64, also no updates on libglib2.0.0 yet. Also update-mime-database and other tricks doest not seem to solve the problem after many reboots.

On AMD64, during the latest round of updates, libglib2.0-0 has been updated to 2.22.1-0ubuntu2 and the reported issue is verified to be fixed.

All is fine now with previous update. Just need a reboot to fix it and
work great.

I think you can put this bug to fixed.