Installation guide

Release Notes

Note

Currently, creating backup passphrases for encrypted devices during installation can only be

achieved during a kickstart installation. More information on this new feature, including how

to utilize this feature in a kickstart installation of Red Hat Enterprise Linux 6, refer to the Disk

Encryption appendix in the Installation Guide.

2.3. DVD Media Boot Catalog Entries

The DVD media for Red Hat Enterprise Linux 6 include boot catalog entries for both BIOS- and UEFI-

based computers. This allows the media to boot systems based on either firmware interface. (UEFI is

the Unified Extensible Firmware Interface, a standard software interface initially developed by Intel and

now managed by the Unified EFI Forum. It is intended as a replacement for the older BIOS firmware.)

Important

Some systems with very old BIOS implementations will not boot from media which include more

than one boot catalog entry. Such systems will not boot from a Red Hat Enterprise Linux 6 DVD

but may be bootable using a USB drive or over a network using PXE.

Note

UEFI and BIOS boot configurations differ significantly from each other and are not

interchangeable. An installed instance of Red Hat Enterprise Linux 6 will not boot if the firmware it

was configured for is changed. You cannot, for example, install the operating system on a BIOS-

based system and then boot the installed instance on a UEFI-based system.

2.4. Installation Crash Reporting

Red Hat Enterprise Linux 6 features enhanced installation crash reporting in the installer. If the

installer encounters an error during the installation process, details of the error are reported to the user

with the option to report the issue to Red Hat support.

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/Disk_Encryption_Guide.html