How to Fix a Corrupted wtmpx File

1. Become superuser.

2. Change to the /var/adm directory.

3. Convert the wtmpx file from binary to ASCII format.

   # /usr/lib/acct/fwtmp < wtmpx > wtmpx.ascii

4. Edit wtmpx.ascii to delete the corrupted records.

5. Convert the wtmpx.ascii file back to a binary file.

   # /usr/lib/acct/fwtmp -ic < wtmpx.ascii > wtmpx

   See fwtmp(1M) for more information.