I recently decided to install the second beta of 64-bit Enterprise Linux, version 6 (RHEL6 Beta 2) to see what was the current state of UEFI booting as far as Red Hat was concerned. The platform I choose to use was an Intel DX48BT2 motherboard which has unofficial support for UEFI booting. By unofficial support, I mean that you can configure the firmware to support UEFI but, according to all reports that I have read, Intel will not help you if you encountered any problems. How a company like Intel can get away with such a policy is beyond my comprehension – especially since this lack of official support was not clearly stated in the warranty documentation or on the product packaging. While the DX48BT2 supports UEFI booting, it does not have a built-in UEFI boot manager.
To install RHEL6, I booted into a separate disk which contained a EFI shell and other assorted EFI utilities I have accumulated over the years. By placing the DVD containing the RHEL6 image in the DVD drive, and by using the EFI map -r command to update the list of devices and filesystems that the EFI shell recognized, I added the DVD drive to the EFI shell device list. I then loaded the BOOTX64.EFI image from the DVD drive and the install of RHEL6 proceeded smoothly and completed successfully. Note that, when booting a DVD containing the RHEL6 bootable ISO image, very early in the boot process you are presented with a menu containing 2 options. I could not screen capture this menu because my equipment for doing video capture decided not work for some unknown reason that I still need to figure out. However the menu looks similar to this.
# ls -al /boot/efi/EFI/BOOT drwx-. 2 root root 4096 Aug 17 22:04. 4 root root 4096 Aug 17 22:03. 1 root root 840 Aug 17 22:03 BOOTX64.CONF -rwx-. 1 root root 226825 Aug 17 22:03 BOOTX64.EFI This change ensured that the UEFI firmware was able to find a boot loader using the default boot mechanism and successfully load RHEL6.
Red Hat should modify their install script to check to see if /EFI/BOOT/BOOTX64.EFI exists and, if not, create the subdirectory and default boot loader. It is not enough to assume that the global boot variables specified by UEFI exist and are modifiable by a user; the installation should ensure that a default UEFI boot mechanism always exists. This will provide a better user experience and less calls to customer support. This hack, and yes I call it a hack, should not be necessary in a few years but certainly is at present as implementations of UEFI firmware vary in their interpretation of the requirements of the UEFI specification. This is not necessarily the fault of the UEFI firmware developers. The UEFI specification is vague (probably deliberately so) in a number of areas relating to UEFI booting and should be tightened up.
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Important Red Hat Retirement Dates. March 31, 2017: Red Hat retired Red Hat Enterprise 5 (RHEL5). July 30, 2017: Red Hat is retiring the Red Hat Network Classic Hosted (RHN Hosted) service. This impacts 297 servers using Cornell's Red Hat proxy server to pull update patches. August 31, 2018: Cornell's Red Hat Satellite Server will no longer be available. August 31, 2018: Cornell's Red Hat self-support site license will no longer be available.
For more information visit the. Eligibility Cornell's Red Hat Enterprise Linux (RHEL) license is available to current Cornell staff, faculty, and students. The license fees for this product are currently paid centrally, and there is no fee for the software at this time. Cossack back to war. Register for a License Please visit the following website to register for a license for Cornell's RHEL Satellite Server: (this form available on-campus and via CUVPN). Download Software. If you already have Cornell's RedHat installed and are using the RHEL Proxy Server, you do not have to download and reinstall the RedHat software.
Register for a License to receive a new activation key move and on to the section Configure your software to use the Satellite Server. Cornell faculty, staff, and graduate students can download RHEL software locally from the links below. The software is in ISO format. You will need the activation key from your license to continue see. Login to the RHEL machine as root. Download this archive and run the provided install.sh script.
Enter the activation key when prompted% tar zxvf cornell-rhn-key.tgz cornell-rhn-key/ cornell-rhn-key/install.sh cornell-rhn-key/ RHN-ORG-TRUSTED-SSL-CERT cornell-rhn-key/ README% cd cornell-rhn-key%./install.sh Cornell University Red Hat Network Setup Utility To use this program you must FIRST OBTAIN an activation key from Cornell Computer Science Computer Facilities Support. This utility MUST be run from a root shell, if you are not in a root shell, quit ( CRTL-C) and start this from a root shell. If you have a code, type or cut/paste it in. You Must Provide a code to continue. After the system is activated, run 'yum update' to obtain the latest RHEL updates from the Satellite Server.
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I recently decided to install the second beta of 64-bit Enterprise Linux, version 6 (RHEL6 Beta 2) to see what was the current state of UEFI booting as far as Red Hat was concerned. The platform I choose to use was an Intel DX48BT2 motherboard which has unofficial support for UEFI booting. By unofficial support, I mean that you can configure the firmware to support UEFI but, according to all reports that I have read, Intel will not help you if you encountered any problems. How a company like Intel can get away with such a policy is beyond my comprehension – especially since this lack of official support was not clearly stated in the warranty documentation or on the product packaging. While the DX48BT2 supports UEFI booting, it does not have a built-in UEFI boot manager.
To install RHEL6, I booted into a separate disk which contained a EFI shell and other assorted EFI utilities I have accumulated over the years. By placing the DVD containing the RHEL6 image in the DVD drive, and by using the EFI map -r command to update the list of devices and filesystems that the EFI shell recognized, I added the DVD drive to the EFI shell device list. I then loaded the BOOTX64.EFI image from the DVD drive and the install of RHEL6 proceeded smoothly and completed successfully. Note that, when booting a DVD containing the RHEL6 bootable ISO image, very early in the boot process you are presented with a menu containing 2 options. I could not screen capture this menu because my equipment for doing video capture decided not work for some unknown reason that I still need to figure out. However the menu looks similar to this. # ls -al /boot/efi/EFI/BOOT drwx-.
2 root root 4096 Aug 17 22:04. 4 root root 4096 Aug 17 22:03.
1 root root 840 Aug 17 22:03 BOOTX64.CONF -rwx-. 1 root root 226825 Aug 17 22:03 BOOTX64.EFI This change ensured that the UEFI firmware was able to find a boot loader using the default boot mechanism and successfully load RHEL6. Red Hat should modify their install script to check to see if /EFI/BOOT/BOOTX64.EFI exists and, if not, create the subdirectory and default boot loader.
It is not enough to assume that the global boot variables specified by UEFI exist and are modifiable by a user; the installation should ensure that a default UEFI boot mechanism always exists. This will provide a better user experience and less calls to customer support. This hack, and yes I call it a hack, should not be necessary in a few years but certainly is at present as implementations of UEFI firmware vary in their interpretation of the requirements of the UEFI specification.
This is not necessarily the fault of the UEFI firmware developers. The UEFI specification is vague (probably deliberately so) in a number of areas relating to UEFI booting and should be tightened up.