Thank you for taking the time to report this bug and helping to make
Ubuntu better.
I've successfully converted the attached slapd.conf. Even though
cn=module{1}.ldif doesn't exist, back_monitor is available in
cn=module{0}.ldif:
math...@intrepid-base:~/d/cn=config$ cat cn\=module\{0\}.ldif
dn:
mkdir -p /tmp/slap/slapd.d
# save attached config to /tmp/slap
slaptest -f /tmp/slap/slapd.conf -F /tmp/slap/slapd.d
# works
# Edit /tmp/slapd/slapd.d/cn=config/cn=module{0}.ldif and remove
olcModuleLoad: {1}back_monitor
slaptest -f /tmp/slap/slapd.conf -F /tmp/slap/slapd.d
# does not work, will
