Determining ethernet MAC address from Open Boot prompt
Today I had a need to jumpstart SunFire V240 using network interface in one of its PCI slots. In order to do that I need to find the MAC address of that interface, preferably with least amount of hassle. There was no Solaris installed and all I had was ok prompt. So I took a quick look at device aliases:
{1} ok devalias
xnet2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â /pci@1d,700000/pci@1/SUNW,hme@0,1:dhcp,
xnet1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â /pci@1e,600000/pci@3/SUNW,hme@0,1:dhcp,
xnet                    /pci@1e,600000/pci@2/SUNW,hme@0,1:dhcp,
net3Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â /pci@1d,700000/network@2,1
net2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â /pci@1d,700000/network@2
net1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â /pci@1f,700000/network@2,1
net                     /pci@1f,700000/network@2
cdrom                   /pci@1e,600000/ide@d/cdrom@0,0:f
ide                     /pci@1e,600000/ide@d
disk3Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â /pci@1c,600000/scsi@2/disk@3,0
disk2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â /pci@1c,600000/scsi@2/disk@2,0
disk1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â /pci@1c,600000/scsi@2/disk@1,0
disk0Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â /pci@1c,600000/scsi@2/disk@0,0
disk                    /pci@1c,600000/scsi@2/disk@0,0
scsi                    /pci@1c,600000/scsi@2
sc-control              /pci@1e,600000/isa@7/rmc-comm@0,3e8
ttyb                    /pci@1e,600000/isa@7/serial@0,2e8
ttya                    /pci@1e,600000/isa@7/serial@0,3f8
name                    aliases
Starting with first net* alias I did:
{1} ok cd /pci@1d,700000
{1} ok ls
f00f8dac network@1
f00b3274 network@2,1
f00acbf4 network@2
{1} ok cd network@1
{1} ok ls
{1} ok pwd
/pci@1d,700000/network@1
{1} ok .properties
assigned-addresses      82000810 00000000 00600000 00000000 00200000
82000830 00000000 00100000 00000000 00100000
d-fru-len               00000000
d-fru-off               0000e800
d-fru-dev               eeprom
s-fru-len               00000800
s-fru-off               0000e000
s-fru-dev               eeprom
compatible              pci108e,abba.11
pci108e,abba
pciclass,020000
pciclass,0200
reg                     00000800 00000000 00000000 00000000 00000000
02000810 00000000 00000000 00000000 00200000
02000830 00000000 00000000 00000000 00100000
address-bits            00000030
max-frame-size          00004000
device_type             network
name                    network
local-mac-address       00 03 ba 4d b3 3f
version                 Sun PCI Gigaswift Base-X FCode 2.6 01/09/27
phy-type                pcs
board-model             501-5524
model                   SUNW,pci-ce
fcode-rom-offset        00000000
66mhz-capable
fast-back-to-back
devsel-speed            00000002
latency-timer           00000040
cache-line-size         00000010
max-latency             00000040
min-grant               00000040
interrupts              00000001
00000002
00000003
00000004
class-code              00020000
revision-id             00000011
device-id               0000abba
vendor-id               0000108e
The MAC address of the network interface is shown in local-mac-address field above. All it took then was following boot command to get jumpstart going:
{1} ok boot /pci@1d,700000/network@1 -v - install nowin
on May 7, 2010 at 11:01
· Permalink
banner command at ok prompt will give mac address
ok> banner
on May 7, 2010 at 13:50
· Permalink
If I remember right, that’s the mac address of the primary onboard interface. It will not give you mac address if you have an ether card stuck in one of the PCI slots for example…