Recovering A Uefi Image - Lenovo Flex System x280 X6 Compute Node Installation And Service Manual

Important: To avoid problems and to maintain system performance, always make
sure that the UEFI code, IMM2 firmware, and diagnostic firmware levels are
consistent in all compute nodes in the Flex System chassis.
For additional information about updating firmware and device drivers, see UEFI
Compliant Firmware on System x
Quick start guides, and the Firmware Update Guides at http://www.ibm.com/
support/entry/portal/docdisplay?lndocid=MIGR-5091991 (an user ID might be
required to access this content).

Recovering a UEFI image

Use this information to recover a UEFI image.
About this task
The compute node has an advanced recovery feature that automatically switches to
a backup UEFI page if the UEFI code in the compute node has become damaged,
such as from a power failure during an update. The flash memory of the compute
node consists of a primary page and a backup page. If the UEFI code in the
primary page is damaged, the integrated management module detects the error
and automatically switches to the backup page to start the compute node. If this
happens, a POST message Booted from backup UEFI image is displayed, the check
log LED is lit, and an automatic BIOS recovery (ABR) condition occurs. The
backup page version might not be the same as the primary page version.
You can then recover or restore the original primary page UEFI.
Note: Changes are made periodically to the website. The actual procedure might
vary slightly from what is described in this document.
Procedure
To recover the UEFI code and restore the compute node operation to the primary
page, complete the following steps:
1. Update the UEFI code (see "Updating firmware and device drivers" on page
2. Restart the compute node.
3. At the firmware splash screen, press F3 when prompted to restore to the
What to do next
If the attempt to flash the primary page results in the compute node not booting
and the check log LED is not lit, you can manually restore the UEFI code. To
manually restore the UEFI code, complete the following steps.
You can use IMM2 to update some types of compute node firmware. For more
information about the IMM2, see http://www.ibm.com/support/entry/portal/
docdisplay?lndocid=MIGR-5086346.
25).
primary bank. The compute node boots from the primary bank.
Note: The prompt to press F3 displays only if the compute node boots from
the backup page due to an ABR condition.
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and BladeCenter Servers. and the Flex System
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Chapter 2. Configuring