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ethtool: Cannot set EEPROM data: Invalid argument

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http://serverfault.com – Recently I buy a Thinkpad T430, but it's internal Ethernet controller have a wrong MAC address, so I want to change it's MAC address in NVM. First I checked EEPROM data # ethtool -e eth0 |head Offset Values ------ ------ 0x0000: 88 88 88 88 87 88 00 08 ff ff d3 00 49 01 00 80 0x0010: 00 10 ff ff c3 10 f3 21 aa 17 02 15 00 00 00 00 0x0020: 02 07 00 00 00 00 05 a5 28 30 00 12 00 00 00 0c 0x0030: 64 2a 40 2b 43 08 13 01 02 15 ad ba 02 15 03 15 0x0040: ad ba ad ba ad ba 02 15 00 80 90 80 00 4e 86 08 0x0050: 00 00 00 00 07 00 00 00 00 0 (HowTos)