R230 iDRAC Read-Only mode
Some Dell R230 servers have their iDRAC reset to read-only mode, meaning you are prohibited from making any iDRAC related changes via BIOS.
To temporary disable read only mode so settings may be changed, following the steps below.
1. Boot the server to the BIOS iDRAC Menu
2. Physically hold the blue UID button on the chassis for ~20 seconds until it stops emitting a light.
3. After roughly 30 seconds BIOS will have been reloaded and settings may be changed.
Rebooting the system will place it back into read-only mode. Resetting iDRAC Configurations to default will result this from happening again next reboot.