(Error code 3c2220)
This error originated from one of the following locations within the iPXE source code:
DEBUG=efi_block
(Please edit this page to include any of your own useful hints and tips for fixing this error.)
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This error shows when ACPI
tables can't be modified by iPXE. when using sanboot
command in EFI.
See Technical details
The debug message is: EFIBLK has no ACPI table protocol
iPXE> sanboot iscsi:192.168.193.100::::iqn.2003-01.org.linux-iscsi.cioco.x8664:sn.88428d90ca8f
Registered SAN device 0x80
Could not describe SAN devices: Operation not supported (http://ipxe.org/3c222083)
Preserving SAN device 0x80
iPXE>