Oracle Read - Oracle Blogs Aggregator

I’m posting this because apparently it hasn’t happened to anyone else except me (heavens knows I searched for help!). The root cause certainly wasn’t obvious to me, so hopefully, this will help someone (maybe me, once I forget about it).
All I needed to do was install a default Oracle Database 11g R1 environment with a starter database for some experimentation. Seems simple.
I had archived a copy of linux_11gR1_database.zip from OTN, so I copied that to my Oracle Enterprise Linux 5 U1 virtual machine and unzipped it (no errors or warnings, mind you). I proceeded to launch the installer as the

…click on the title to read the full article…