As part of server decommissioning, cleanup of old DB2 product, you might need to uninstall DB2. In this blog we will go through steps to uninstall DB2 on Linux.
Step 1: Verify DB2 instance association with DB2 product
You can use db2ilist command and execute it from <DB2 Installation Path>/instance with root privilege to get DB2 instance associated with that DB2 installation
./db2ilist
If there is no DB2 instance associated with it then skip next step
Step 2: Drop DB2 instance associated with DB2 installation
Execute db2idrop command from <DB2 Installation Path>/instance with root privilege to drop DB2 instance. Ensure there is no local database associated with DB2 instance and instance is in stop state.
./db2idrop <instanceid>
db2idrop throws error The specified instance "<instanceid>" does not exist then follow blog db2idrop issue : The specified instance does not exist
Step 3: Uninstall DB2 product
Change current working directory to <DB2 Installation Path>/install and execute db2_deinstall with root privilege to uninstall DB2.
./db2_deinstall -a
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