3.5.2. Disk Drives with MBR on UEFI Systems
msdos) label, the disk must be relabeled. This means you can not reuse existing partitions on a MBR-partitioned disk, and all data on the disk will be lost. Make sure to back up all data on the drive before installing Red Hat Enterprise Linux.
- Attach the drive to an existing Linux system and use an utility such as
fdiskto create a GPT label on the drive. For example, to create a GPT label on disk
parted, use the following command:
parted /dev/sdc mklabel gpt
WarningMake sure you specify the correct drive. Relabeling a disk will destroy all data on it, and
partedwill not ask you for a confirmation.
- Perform an automated Kickstart installation, and use the
zerombrcommands. If your system uses UEFI firmware, using these commands on the boot drive will relabel it with a GPT.
- During a manual installation in the graphical user interface, when you get to the partitioning screen. Select an option other than custom partitioning (for example Use All Space). Make sure to check the Review and modify partitioning layout check box, and click Next.On the following screen, modify the automatically created layout so it suits your needs. After you finish and click Next, Anaconda will use your layout and relabel the drive automatically.