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+Notes about Debian's libldap2 package
+-------------------------------------
+
+It has been reported that using libnss-ldap can cause a failure to
+unmount /usr on system shutdown. The reason is that the nss module
+uses libldap from /usr and is used by the shell in the system
+scripts executed on shutdown/reboot.
+
+More precisely bash uses the getpwuid function to get the data of
+the current user which pulls in the nss modules which includes
+the ldap libraries if you are using that module.
+
+Possible solutions to this problem are:
+
+a) use another shell that does not utilize getpwuid for getting info
+ about the current user (take dash for example).
+b) make sure that the nsswitch.conf is replaced by a version which does
+ not mention ldap before the system is shut down (and have a startup
+ script that installs the "full" version of that file).
+c) move the libraries to /lib (not recommended).
+
+ -- Torsten Landschoff <torsten@debian.org> Mon, 30 Sep 2002 11:06:22 +0200