# Step E: Switch boot mode to UEFI
<a name="migrate-server-218-boot-mode-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**
+ [Switch to UEFI on a Dell](migrate-server-218-boot-mode-uefi-dell.md)
+ [Switch to UEFI on a SuperMicro](migrate-server-218-boot-mode-uefi-smc.md)