# Switching boot mode to UEFI
<a name="migrate-topic-uefi"></a>

RHEL 9 requires that the boot mode for the appliance is UEFI. You can change the boot mode from BIOS (or Legacy mode) to UEFI.

**Topics**
+ [Switching to UEFI on a Dell](migrate-topic-uefi-dell.md)
+ [Switching to UEFI on a SuperMicro](migrate-topic-uefi-supermicro.md)