Steps for detaching A DB2 database in Linux

To uninstall a DB2 database in Linux:

1. Remove DB [delete database first]
(1) su-db2inst1
(2) db2 list db directory
(3) db2 drop db <db name>

2. Remove Instance [Delete Instance]
(1) su-root
(2) cd <db2 dir>/instance
(3)./db2ilist
(4)./db2idrop-f <instance name>

3. Remove das [Delete das]
(1) su-root
(2) cd <db2 dir>/instance
(3)./daslist
(4)./dasdrop <das user>

4. Uninstall [Uninstall]
(1) su-root
(2) cd <db2 dir>/install
(3)./db2_deinstall-

5. Remove user (db2inst1, db2fenc1, dasusr1) [delete user and user Group]
(1) userdel-r <username>
(2) groupdel-r <groupname>