Migrating from Directory Server 4.2 to 5.2 using LDIF file

We are experiencing problem migrating 4.2 LDAP Data to 5.2 using LDIF format. we export the data using "db2ldif" in 4.2 server. export the ldif file to new server where sun 5.2 DS is installed. edit the LDIF file to change the server ID. When try to import using "ldif2db" on 5.2 server, I am getting the following error.

[10/Jul/2006:09:05:57 -0400] - DEBUG - conn=-1 op=-1 msgId=-1 - ERROR 2: There is no backend instance to import to. But the server is running.

Thanks for the help,

Satya

[516 byte] By [csatyam] at [2007-11-26 8:35:09]