[Bug 773295] Re: Sudo asks for root password instead of user password

[matsonfamily]

I'm running Lubuntu 11.04 x64, fresh install, and I have this issue.  I
note that my applications in the menu [that need privileges] have a
gksu, and changing them to gksudo makes them launch just fine.  It's
just when I launch apps with gksu that it happens.  Changing the
application menu entries to use gksudo is not really the fix, though,
for if I install a new app with privileges or if I reinstall something
like Synaptic, they'll be back to gksu.  I've ran $gksudo gksu-
properties , and it showed that su was being used, so changed to sudo
and rebooted, with no luck.  Is this a policy-kit issue?  I just mention
that because I note that when I run an app with gksudo it comes up with
a window asking for *my* passwd and gives a little plus-sign with a
polkit entry, but when running apps in my main menu (and those run with
gksu, as I said earlier), those come up with a slightly different auth
window that asks for the "administrative password", and asks if you want
to remember it for the session, or forever in the keyring.  As a side
note, I installed with the Ubuntu 11.04 x64 Alternate CD, changed the
mode to command-line only (forgot the wording), and installed a minimal
Ubuntu desktop, then after the install did a $sudo aptitude install
lubuntu-desktop , to get Lubuntu.

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https://bugs.launchpad.net/bugs/773295

Title:
  Sudo asks for root password instead of user password

Status in “sudo” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: sudo

  On a fresh install of Natty sudo asks for the (nonexistent) root
  password instead of the user's password.  I Googled thoroughly for
  this issue and found that this can happen if /apps/gksu/sudo-mode is
  not checked.  I opened gconf-editor and checked this key and it was
  checked.  I unchecked and checked it and it still didn't resolve the
  issue.

  Steps Taken:
  Open something that requires root through Gnome.  I opened "Additional Drivers".
  Do something that requires root in the program.  I tried activating the proprietary NVidia drivers.

  Expected Behavior:
  gksu/gksudo asks for your password, program continues in super-user mode

  Observed Behavior:
  gksu/gksudo asks for the root password, fails because there is no root password set

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