Users Guide

Unable to install Red Hat Enterprise Linux 7 in the
UEFI mode
Description: During the installation of Red Hat Enterprise Linux 7, the Anaconda installer is unable to create boot entry using
EFIbootmgr, in the UEFI mode.
Applies to: Red Hat Enterprise Linux 7.0
Cause: EFIbootmgr is unable to create a UEFI boot entry, when boot variables of Hard drive C: (under BIOS) is greater
than 1024 bytes. This is a known limitation.
Workaround:
1 Remove all the bootable devices shown under Hard Drive C: (listed in BIOS under F11 option).
2 Boot into legacy BIOS, and change the boot setting to UEFI mode.
3 Reboot the server, re insert the devices that are removed under Hard Drive C: and reinstall.
Issues or limitations before installation 15