Public bug reported:
I upgraded some Ubuntu 12.04 machines last week and the upgrade to
lightdm 1.2.3-0ubuntu2 (i.e. from precise-updates) replaces
/etc/pam.d/lightdm with a new version. This screwed up PATH and locale
for all users in graphical sessions. Default locale
(/etc/default/locale) is set to de_DE.UTF-8 and /etc/environment
contains
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games".
After installing the lightdm 1.2.3-0ubuntu2 in a graphical session the
locale is POSIX and /usr/sbin/ is missing from PATH. Apparently the
reason for this are the changes in the auth section of
/etc/pam.d/lightdm. Replacing this file with the version from before the
update solves the problem. In particular, this seems to be related to
the following line (from the old /etc/pam.d/lightdm):
auth required pam_env.so readenv=1 envfile=/etc/default/locale
The systems authenticate against Kerberos via pam_krb5 and LDAP user
database (still via libnss-ldap).
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1176849
Title:
lightdm/pam configuration screws up locale and PATH
Status in “lightdm” package in Ubuntu:
New
Bug description:
I upgraded some Ubuntu 12.04 machines last week and the upgrade to
lightdm 1.2.3-0ubuntu2 (i.e. from precise-updates) replaces
/etc/pam.d/lightdm with a new version. This screwed up PATH and locale
for all users in graphical sessions. Default locale
(/etc/default/locale) is set to de_DE.UTF-8 and /etc/environment
contains
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games".
After installing the lightdm 1.2.3-0ubuntu2 in a graphical session the
locale is POSIX and /usr/sbin/ is missing from PATH. Apparently the
reason for this are the changes in the auth section of
/etc/pam.d/lightdm. Replacing this file with the version from before
the update solves the problem. In particular, this seems to be related
to the following line (from the old /etc/pam.d/lightdm):
auth required pam_env.so readenv=1
envfile=/etc/default/locale
The systems authenticate against Kerberos via pam_krb5 and LDAP user
database (still via libnss-ldap).
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1176849/+subscriptions
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