Recovering The Uefi Code - Lenovo ThinkServer RD220 Hardware Maintenance Manual

Flag 13: Library Pick Retry (W)
This flag is set when a high retry count threshold is passed during an operation to pick a cartridge from
a slot before the operation succeeds. This flag is internally cleared when another pick operation is
attempted.
Flag 14: Library Place Retry (W)
This flag is set when a high retry count threshold is passed during an operation to place a cartridge back
into a slot before the operation succeeds. This flag is internally cleared when another place operation is
attempted.
Flag 15: Library Load Retry (W)
This flag is set when a high retry count threshold is passed during an operation to load a cartridge
into a drive before the operation succeeds. This flag is internally cleared when another load operation
is attempted. Note that if the load operation fails because of a media or drive problem, the drive sets
the applicable tape alert flags.
Flag 16: Library Door (C)
This flag is set when media move operations cannot be performed because a door is open. This flag is
internally cleared when the door is closed.
Flag 23: Library Scan Retry (W)
This flag is set when a high retry count threshold is passed during an operation to scan the bar code
on a cartridge before the operation succeeds. This flag is internally cleared when another bar code
scanning operation is attempted.

Recovering the UEFI code

If the UEFI code has become damaged, such as from a power failure during an update, you can recover the
uEFI code using the boot block jumper and a UEFI recovery diskette.
Notes:
1. You can obtain a UEFI recovery diskette from one of the following sources:
• Download the UEFI code update from the World Wide Web and use it to make a recovery diskette.
• Contact your Lenovo service representative.
2. To create and use a diskette, you must add an optional external diskette drive to the server.
To download the UEFI code update from the World Wide Web, complete the following steps:
Note: Changes are made periodically to the Lenovo Web site. The actual procedure might vary slightly
from what is described in this document.
1. Go to http://www.ibm.com/systems/support/.
2. Under Product support, click System x.
3. Under Popular links, click Software and device drivers.
4. Click System x3650 M2 to display the matrix of downloadable files for the server.
5. Download the latest UEFI code update.
6. Create the UEFI recovery diskette, following the instructions that come with the update file that you
downloaded.
The flash memory of the server consists of a primary page and a backup page. The backup page is a
protected area that cannot be overwritten. If the primary page becomes corrupted, the server boots from the
backup page, which enables you to replace the UEFI code for the primary page.
To recover the UEFI code and restore the server operation to the primary page, complete the following steps:
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Chapter 5 Diagnostics