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ayeyes
Tux's lil' helper
Joined: 03 Dec 2017
Posts: 104
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 Posted: Thu Feb 15, 2018 12:00 pm Post subject: [SOLVED] Intel Microcode & Luks. Is it loaded? |
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Hi,
Using label in grub.cfg didn't work, so I I'm using crypt_root=/dev/sda2.
dmesg | grep microcode
| Code: | [ 1.064884] microcode: sig=0x906eb, pf=0x2, revision=0x7c
[ 1.064955] microcode: Microcode Update Driver: v2.2. |
grep microcode /proc/cpuinfo
| Code: | microcode : 0x7c
microcode : 0x7c
microcode : 0x7c
microcode : 0x7c
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Is it ok?
Last edited by ayeyes on Thu Feb 15, 2018 4:04 pm; edited 1 time in total |
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frostschutz
Advocate
Joined: 22 Feb 2005
Posts: 2977
Location: Germany
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| Posted: Thu Feb 15, 2018 1:18 pm Post subject: |
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early microcode loading should have a message at the very top, even before linux kernel reports version number information
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$ dmesg | head
[ 0.000000] microcode: microcode updated early to revision ...
[ 0.000000] Linux version 4.15.2 ...
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ayeyes
Tux's lil' helper
Joined: 03 Dec 2017
Posts: 104
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| Posted: Thu Feb 15, 2018 1:24 pm Post subject: |
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| Thank you! So it needs 'label' in grub.cfg then I guess. |
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frostschutz
Advocate
Joined: 22 Feb 2005
Posts: 2977
Location: Germany
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| Posted: Thu Feb 15, 2018 2:05 pm Post subject: |
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microcode and luks and labels are mostly unrelated things, not sure why you are throwing them together
microcode has to be embedded in kernel or piggybacked into initramfs
should be explained in the wiki |
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ayeyes
Tux's lil' helper
Joined: 03 Dec 2017
Posts: 104
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| Posted: Thu Feb 15, 2018 2:19 pm Post subject: |
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I transferred my install to an unencrypted disk and booted withbut got the same output.
I have
| Code: |
initrd="early_ucode.cpio ${rel_dirname}/${i}"
break
else
initrd="early_ucode.cpio"
fi |
in /etc/grub.d/10_linux.
My grub.cfg
| Code: | | initrd /early_ucode.cpio /initramfs-genkernel-x86_64-4.14.11-gentoo-r2 |
Running the 4.14.11-gentoo-r2 patched kernel.
---
Fixed it by following the Microcode Wiki for adding the /lib/firmware/intel-ucode drivers to the kernel. |
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