System hangs during messagebus startup
This problem has been experienced after rebooting a system in which ldap has been configured. Note that LDAP functions properly immeidately after it is setup on the machine, but hangs at "staring system message bus" after a reboot. To fix, reboot in single user mode or into linux rescue and edit /etc/ldap.conf
If linux rescue is used, the disk may have to be remounted rw in order to edit /etc/ldap.conf if for some reason a user receives a read-only file system message or cannot chroot to /mnt/sysimage.
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