Oleg's questions

Edit 1:

Running Ubuntu 18.04 here. I'm trying to set /sys/module/libata/parameters/allow_tpm, but to no avail.

modinfo libata tells me:

modinfo: ERROR: Module libata not found.

This is after running apt-get install --reinstall linux-headers-$(uname -r) followed by apt update && apt upgrade as well as a nice reboot.

How I got to this point

I've tried editing /sys/module/libata/parameters/allow_tpm as root, but to no avail.

After doing chmod 644 on the file and running echo 1 > /sys/module/libata/parameters/allow_tpm I get:

-bash: echo: write error: Input/output error

I've also tried adding this line:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash libata.allow_tpm=1"

to /etc/default/grub, followed by update-grub (as recommended here: https://stackoverflow.com/questions/20485142/ata-trusted-commands-how-to-set-libata-allow-tpm) but that doesn't help.

Not even appending libata.allow_tpm=1 to /etc/sysctl.conf has any effect.

What I really want to do

I want to be able to run sedutil. But running sedutil-cli --scan tells me that

The Kernel flag libata.allow_tpm is not set correctly

What do I do?

I've just finished building a new machine with a i9 9900k CPU, a CPU with 1 socket, 8 cores and 16 threads. I installed Ubuntu Bionic on it, and I am just about to add checks to the CPU temperatures.

However, when I run cat /sys/class/thermal/thermal_zone*/temp (as recommended by https://askubuntu.com/a/15834/822289) I get 3 results:

27800
40000
28000

Edit 1: The "correct" CPU-temperature is the one shown at thermal_zone2.

I thought maybe a 3rd-party program like acpi might help:

# acpi -t
Thermal 0: ok, 27.8 degrees C

But that one only gives me what's on thermal_zone0. What do the other ones represent, especially thermal_zone1, and how can I find more information about that?

Edit 2: The answer to what do the other ones represent can be found by running the following command:

cat /sys/class/thermal/thermal_zone*/type

Which gives me, in this case, the following output:

acpitz
pch_cannonlake
x86_pkg_temp