OSs Supporting UEFI Boot Mode

The ECS boot mode can be BIOS or UEFI. For details about the differences between them, see "How Is BIOS Different from UEFI?" in the FAQ.

Table 1 lists the OSs that support the UEFI boot mode.

**Table 1** OSs supporting UEFI boot mode
OS	Version
Windows	Windows Server 2019 Standard 64bit Windows Server 2019 Datacenter 64bit Windows Server 2016 Standard 64bit Windows Server 2016 Datacenter 64bit Windows Server 2012 R2 Standard 64bit Windows Server 2012 R2 Datacenter 64bit Windows Server 2012 Essentials R2 64bit Windows Server 2012 Standard 64bit Windows Server 2012 Datacenter 64bit Windows 10 64bit
Ubuntu	Ubuntu 19.04 Server 64bit Ubuntu 18.04 Server 64bit Ubuntu 16.04 Server 64bit Ubuntu 14.04 Server 64bit
Red Hat	Red Hat Linux Enterprise 7.4 64bit Red Hat Linux Enterprise 7.3 64bit Red Hat Linux Enterprise 7.1 64bit Red Hat Linux Enterprise 7.0 64bit Red Hat Linux Enterprise 6.9 64bit Red Hat Linux Enterprise 6.6 32bit Red Hat Linux Enterprise 6.5 64bit
Oracle Linux	Oracle Linux Server release 7.4 64bit Oracle Linux Server release 6.9 64bit
openSUSE	openSUSE 42.1 64bit
SUSE	SUSE Linux Enterprise Server 12 SP5 64bit SUSE Linux Enterprise Server 12 SP1 64bit SUSE Linux Enterprise Server 11 SP3 64bit
Fedora	Fedora 29 64bit Fedora 24 64bit
Debian	Debian GNU/Linux 8.8.0 64bit
CentOS	CentOS 7.6 64bit CentOS 7.5 64bit CentOS 7.4 64bit CentOS 7.0 64bit CentOS 6.9 64bit CentOS 6.6 64bit
EulerOS	EulerOS 2.8 64bit EulerOS 2.7 64bit EulerOS 2.5 64bit EulerOS 2.3 64bit EulerOS 2.2 64bit
openEuler	openEuler 20.03 64bit