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24666
May 11th, 2013 16:00
No AES-NI instruction set support
Hi,
The i7-3537U is listed on Intel's page as having the AES-NI instruction set, however the aes flag does not appear in /proc/cpuinfo and I cannot load the aesni-intel kernel module:
$ sudo modprobe aesni-intel
ERROR: could not insert 'aesni_intel': No such device
What is going on here? The aes_x86_64 module works just fine but does not provide AES-NI.
DELL-Jared D
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350 Posts
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May 11th, 2013 17:00
What BIOS version? I've got an i5 version here that had A07, and /proc/cpuinfo wasn't showing support. I updated the BIOS to A08 right now, and it's showing up now.
calvinli
3 Posts
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May 11th, 2013 17:00
Thanks for the tip (I couldn't find anything on this issue anywhere). I'm running A07.
I will try to update to A08. As I understand it, this requires downloading an EXE and running it from a DOS liveusb?
calvinli
3 Posts
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May 11th, 2013 23:00
Thank you! The update to A08 did in fact add AES-NI.
The upgrade was very complicated but it seems to have worked; for any viewing this the eventual solution that worked was the one described here: ubuntuforums.org/showthread.php