up-to-date Gutsy. update-manager 1:0.63.
Since 1:0.62->1:0.63, update-manager is no longer able to upgrade anything when clikcing on "Install". I just skip that jump to "refresh".
apt-get/synptic/dselect are all okay so it's not an issue with the status of either my system or the repo.
When run as root, it seems to work but when run as a normal user (either from a terminal or though the applet in the panel), it does what I describe.
Here is what it says in the shell:
fta@ix:~ $ update-manager
***MEMORY-WARNING***: update-manager[18172]: GSlice: g_thread_init() must be called before all other GLib functions; memory corruption due to late invocation of g_thread_init() has been detected; this program is likely to crash, leak or unexpectedly abort soon...
WARNING: upgradable but no canidateOrigin?!?: ca-certificates
current dist not found in meta-release file
could not send the dbus Inhibit signal: org.freedesktop.DBus.Error.Spawn.ChildExited: Process /usr/bin/gnome-power-manager exited with status 0
***MEMORY-WARNING***: gksu[18525]: GSlice: g_thread_init() must be called before all other GLib functions; memory corruption due to late invocation of g_thread_init() has been detected; this program is likely to crash, leak or unexpectedly abort soon...
WARNING: upgradable but no canidateOrigin?!?: ca-certificates
fta@ix:~ $ /usr/bin/gnome-power-manager
fta@ix:~ $ echo $?
0
same effect with gnome-power-manager 2.19.2-0ubuntu4 and 2.19.3-0ubuntu1
Note: ca-certificates is just locked (see LP #114495)
Note2: it's a desktop
additionnal info: that was with gnome-power-manager disabled in Gnome session. Re-enabling it didn't change anything (exact same logs).
fta@ix:~ $ ps auxw | grep pow
fta 6106 0.0 0.5 26652 11600 ? Ss Jun10 0:01 gnome-power-manager
fta@ix:~ $ /usr/bin/
fta@ix:~ $ echo $?
0