[coreboot] SeaBIOS boot order / can't boot from USB

[Hal Martin]

Hi all,

I'd like to learn more about SeaBIOS boot order, but unfortunately I wasn't
able to find the answer to my question on the wiki page:
https://www.coreboot.org/SeaBIOS#Configuring_boot_order

I would like to add a bootscript for SeaBIOS to search for USB boot devices
before falling back to the hdd or PXE.

If I have USB bootable media plugged in, SeaBIOS seems to immediately boot
from the hdd. I'm not able to boot from USB unless I physically unplug the
SATA connection.

When I look at the console log in cbmem, I don't see SeaBIOS searching the
USB controller at all.

It's an Ivy Bridge platform.

SeaBIOS log from cbmem:
Searching bootorder for: /pci at i0cf8/*@1f,2/drive at 0/disk at 0
Searching bootorder for: /pci at i0cf8/pci-bridge at 1c,3/*@0
Press ESC for boot menu.

lspci:
00:00.0 Host bridge [0600]: Intel Corporation 3rd Gen Core processor DRAM
Controller [8086:0154] (rev 09)
00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v2/3rd Gen Core
processor PCI Express Root Port [8086:0151] (rev 09) (prog-if 00 [Normal
decode])
00:01.1 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v2/3rd Gen Core
processor PCI Express Root Port [8086:0155] (rev 09) (prog-if 00 [Normal
decode])
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core
processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA
controller])
00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04) (prog-if 30
[XHCI])
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit
Network Connection (Lewisville) [8086:1502] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C216 Chipset
Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04) (prog-if 20
[EHCI])
00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C216 Chipset Family
High Definition Audio Controller [8086:1e20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation 7 Series/C216 Chipset Family
PCI Express Root Port 1 [8086:1e10] (rev c4) (prog-if 00 [Normal decode])
00:1c.4 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset
Family PCI Express Root Port 5 [8086:1e18] (rev c4) (prog-if 00 [Normal
decode])
00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C216 Chipset
Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04) (prog-if 20
[EHCI])
00:1f.0 ISA bridge [0601]: Intel Corporation HM76 Express Chipset LPC
Controller [8086:1e59] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation 7 Series Chipset Family
6-port SATA Controller [AHCI mode] [8086:1e03] (rev 04) (prog-if 01 [AHCI
1.0])
00:1f.3 SMBus [0c05]: Intel Corporation 7 Series/C216 Chipset Family SMBus
Controller [8086:1e22] (rev 04)
00:1f.6 Signal processing controller [1180]: Intel Corporation 7
Series/C210 Series Chipset Family Thermal Management Controller [8086:1e24]
(rev 04)

Any suggestions?

Thanks,
Hal
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