Package: ethtool Version: 1:4.8-1 Severity: normal Dear maintainer,
The EEPROM of my Ethernet NIC has been flushed for some unknown reason.
I would like to use ethtool to restore my EEPROM (fortunately I have a
dump).
Here is one simple "test command" I tried and which should be valid
according to the manpage and examples found on the net:
# ethtool --change-eeprom enp2s1 magic 0x100e8086 offset 0x10 length 1 \
value 0xff
But unfortunately, I always get this error:
"Cannot set EEPROM data: Operation not permitted"
I am probably missing something, in which case please apologize, but
maybe it is really a bug/something we can not do anymore with recent
kernels? Maybe what I am probably be missing should be written in the
manpage or in /usr/share/doc/ethtool/...?
Do not hesitate to ask if i can provide more information.
Best regards,
Yvan
# ethtool -e enp2s1
Offset Values
------ ------
0x0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
# lspci -vnn:
...
02:01.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit
Ethernet Controller [8086:100e] (rev 03)
Subsystem: Intel Corporation 82540EM Gigabit Ethernet
Controller [8086:100e]
Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 11
Memory at c0220000 (64-bit, non-prefetchable) [size=128K]
Memory at c0200000 (64-bit, non-prefetchable) [size=64K]
I/O ports at 8000 [size=64]
[virtual] Expansion ROM at c0210000 [disabled] [size=64K]
Capabilities: [dc] Power Management version 2
Capabilities: [e4] PCI-X non-bridge device
Capabilities: [f0] MSI: Enable- Count=1/1 Maskable- 64bit+
Kernel driver in use: e1000
Kernel modules: e1000
The dump I would like to restore at the end (I just need to change the
MAC address):
Offset Values
------ ------
0x0000: 00 01 6c cb 09 3c 00 0b ff ff ff ff ff ff ff ff
0x0010: 00 00 00 00 0b 66 49 05 14 10 1e 10 86 80 a5 b1
0x0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x0030: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x0040: cf 00 61 78 0b 14 00 00 c8 04 ff ff ff ff ff ff
0x0050: ff ff ff ff ff ff ff ff ff ff ff ff ff ff 02 06
0x0060: 2c 01 00 40 11 12 ff ff ff ff ff ff ff ff ff ff
0x0070: ff ff ff ff ff ff ff ff ff ff ff ff ff ff 7c fe
You will also find attached the strace for the above command.
-- System Information:
Debian Release: 9.0
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 4.9.0-1-686 (SMP w/1 CPU core)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages ethtool depends on:
ii libc6 2.24-9
ethtool recommends no packages.
ethtool suggests no packages.
-- no debconf information
ethtool.strace
Description: Binary data
pgpPn3p0v4pWO.pgp
Description: Signature digitale OpenPGP
