<html style="direction: ltr;">
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<style type="text/css">body p { margin-bottom: 0cm; margin-top: 0pt; } </style>
</head>
<body style="direction: ltr;" bidimailui-charset-is-forced="true"
bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">
<pre wrap="">Hi everybody,</pre>
After a manual shutdown and repower, the integrated NIC is
functional again. Has similar phenominon been observed yet?<br>
<br>
在 2016年11月11日 17:02, Persmule 写道:<br>
</div>
<blockquote
cite="mid:e8c20329-cf64-c46d-8f33-694144545666@gmail.com"
type="cite">
<pre wrap="">Hi everybody,
</pre>
<blockquote type="cite">
<pre wrap=""> * Sandy Bridge accepts an Intel ME firmware with just the FTPR partition, both
with and without a valid FPT (the partition table of the Intel ME image).
The system doesn't power off after 30 minutes, and the ME reports a
successful initialization (see attached cbmem).
To be extra safe we wrote a small Python script that removes all the
non-fundamental partitions and creates a new FPT with a single partition
entry (following the structure in [1] and some hints from Igor Skochinsky).
</pre>
</blockquote>
<pre wrap="">I failed to build a usable coreboot image for my own X220, so I made a "crippled/cleansed" ME from factory bios image via Nicola's script and insert the crippled ME back to the factory bios via coreboot's ifdtool. Then I flashed the modified factory bios to the laptop.
Now my x220 has survived nearly one hour, and the MEI has disappeared from PCI bus, but, additionally, the integrated NIC ceased to be functional with such error seen from dmesg:
</pre>
<blockquote type="cite">
<pre wrap="">[ 2.608150] e1000e: probe of 0000:00:19.0 failed with error -3
</pre>
</blockquote>
<pre wrap="">
I do not know whether this phenominon has been observed, but I believe it may be natural after ME gets crippled, since I have experienced a broken integrated NIC
on an HP eliteboot 8460p whose ME is broken.
This phenominon may suggest on such platform, the functionality of integrated NIC is actually implemented by the overlord called ME, and thus the integrated NIC
is ME's backdoor.
The output of lspci(8) is attached.
</pre>
</blockquote>
<br>
</body>
</html>