After installing Fedora 19 beta and rebooting my test computer, I noticed that one of the options available in GRUB’s menu is tboot 1.7.0. Not sure what it’s for, I selected it and hit the Enter key.
Fedora 19 tBoot Trusted boot Intel TXT

On the next GRUB screen, is the option to boot into Fedora GNU/Linux, with tboot 1.7.0. But what does tboot do? Well, one way to find out is to boot into the system and see what dmesg can tell me. Nothing.
Fedora 19 tBoot Trusted boot Intel TXT

Fedora’s official page on tboot has very little useful information, but a search of Apper, the graphical package manager, returns an entry for a tboot package. The description for tboot goes like this:

Trusted Boot (tboot) is an open source, pre-kernel/VMM module that uses Intel Trusted Execution Technology (Intel TXT) to perform a measured and verified launch of an OS kernel/VMM.

Ok, so tboot is the open source package for taking advantage of Intel Trusted Execution Technology (Intel TXT). Intel TXT requires a software and hardware component to work. Here, the software component is obviously tboot. The hardware component is a chip on the motherboard called the Trusted Platform Module (TPM). So if our computer does not have a TPM chip, tboot is of no use to you.

Related Post:  How to delete GRUB files from a Boot EFI partition in Windows 10

TPM chips are embedded in the hardware of Intel processors. But most of those are server processors, such as the Intel Xeon E3 v3, Intel Xeon E5 and Intel Xeon E7, and the latest Intel Core vPro processors.

Still not sure what to make of tboot in Fedora 19 beta, I sent an email to Adam Williamson, a Red Hat dude and publisher of happyassassin.net. His reply copied another Red Hat dude who said that tboot appearing by default in GRUB’s menu is a bug, and gave the following reasons why it should not be in the default installation.

1. We don’t really have the infrastructure for doing useful things with it, so it’s really mostly just something an interested party could do development on.

2. Sinit (the method for entering TXT mode) runs a pile of closed source code provided by the firmware on the host CPU effectively as the kernel, and a lot of people aren’t too keen on that. This is especially true since the code is doing things like turning on special processor modes and doing cryptographic verification, which is exactly the sort of thing open review of code often finds tons of bugs in…

3. There are some cases right now where it doesn’t really work right (for instance, UEFI). Obviously these are just bugs, so this is the least important of this list.

So, if you have installed Fedora 19 beta and were/are wondering what the heck that tboot entry in the boot menu is for, don’t worry about it. It’s just a bug. It will not show up in Fedora 19 final.

Related Post:  How to run Unity desktop on Linux Mint 12

Here’s an introductory video about Intel Trusted Execution Technology.

Share:

Share on facebook
Facebook
Share on twitter
Twitter
Share on pinterest
Pinterest
Share on linkedin
LinkedIn

Hola! Did you notice that LinuxBSDos.com no longer runs network ads?  Yep, no more ads from the usual suspects that track you across the Internet.  But since  I still need to pay to keep the site running, feel free to make a small donation by PayPal.

Subscribe for updates. Trust me, no spam!

Mailchimp Signup Form

Sponsored links

1. Attend Algorithm Conference, a top AI and ML event for 2020.
2. Reasons to use control panel for your server.
3. DHgate Computers Electronics, Cell Phones & more.

9 Responses

  1. Hi,

    thanks for the guide, it workes for me 🙂

    Do I still have to choose cinnamon 2d in order to get cinnamon or has the bug been solved? Anyone know where I can find out?

    Best,
    rune

    1. I was getting the “unable to locate the package cinnamon” error also, but it was because I did not the “sudo apt-get update” before try the install. My fault!

  2. Ubutntu Cinnamon Remix has now been released! It is based on Ubuntu
    12.04.1 with the cinnamon desktop as default, classic panel
    configuration (two panels), weather applet preinstalled, multimedia
    codecs and plug-ins included, and xscreensaver preinstalled as well.
    For maximum compatibility the 32-bit version uses the non-pae kernel
    (also only non-gl screensavers.) The 64-bit version will also be
    released shortly. During the install, be sure to select the hard drive
    MBR (the default choice will likely be the usb stick from which you are
    installing — Ubuntu upstream bug.) Features Cinnamon 1.6.1

    http://sourceforge.net/projects/cinnamon-remix/files/

    🙂

  3. Thanks for this article. I’m new to Ubuntu. I quite like it, but I prefer the bottom bar option I’m used to in Windows. Hopefully this’ll satisfy.
    You seem to have a nice attitude too. It’s annoying to see Linux people go on as if those using Windows and Apple are dumb. It does nothing to promote the usage of the system.

Leave a Reply

Your email address will not be published. Required fields are marked *

Get the latest

On social media
Via my newsletter
Mailchimp Signup Form

Partner links

1. Attend Algorithm Conference, a top AI and ML event for 2021.
2. Reasons to use control panel for your server.
3. DHgate Computers Electronics, Cell Phones & more.
Hacking, pentesting distributions

Linux Distributions for Hacking

Experts use these Linux distributions for hacking, digital forensics, and pentesting.

Categories
Archives

The authors of these books are confirmed to speak during

Algorithm Conference

T-minus AI

Author was the first chairperson of AI for the U.S. Air Force.

The case for killer robots

Author is the Director of the Center for Natural and Artificial Intelligence.

Why greatness cannot be planned

Author works on AI safety as a Senior Research Scientist at Uber AI Labs.

Anastasia Marchenkova

An invitation from Anastasia Marchenkova

Hya, after stints as a quantum researcher at Georgia Tech Quantum Optics & Quantum Telecom Lab, and the University of Maryland Joint Quantum Institute, I’m now working on superconducting qubit quantum processors at Bleximo. I’ll be speaking during Algorithm Conference in Austin, Texas, July 16 – 18, 2020. Meet me there and let’s chat about progress and hype in quantum computing.