Hey everyone, I’m happy to announce the release of an update to our coreboot images for Librem 13 v2 and Librem 15 v3 machines.
All new laptops will come pre-loaded with this new update, and everyone else can update their machines using our existing build script which was updated to build the newest image. Some important remarks:
This is a follow up from Kyle’s previous blog post, and now that the image has been fully tested, you can all enjoy it and get one of our most requested feature : VT-d support for Qubes 4.0 to work.
The new version is “4.7-Purism-1” and here is the ChangeLog:
- Update to coreboot 4.7
- Update to FSP 2.0
- Add IOMMU support
- Enable TPM support
- Fixed ATA errors at 6Gbps
While coreboot 4.7 has not been officially released, it was “tagged” on October 31st in coreboot’s git repository, and this release is based on that tag with the IOMMU (VT-d) and TPM support added on top of it.
If your laptop came with the TPM chip installed, you need to update your coreboot image to this version in order to use the TPM hardware.
To build the latest coreboot image :
mkdir building-coreboot && cd building-coreboot && wget https://code.wp.puri.sm/kakaroto/coreboot-files/raw/master/build_coreboot.sh
sudo apt-get install git build-essential bison flex m4 zlib1g-dev gnat libpci-dev libusb-dev libusb-1.0-0-dev dmidecode bsdiff python2.7
chmod +x build_coreboot.sh && ./build_coreboot.sh
For matters specifically related to this build script (not related to how to use a TPM per se), you may also want to check out the main forum thread about our coreboot build script, where discussion and testing has been going on over the past few months.
If you are unsure whether or not you have a TPM installed on your system, install the
tpm_tools package and then run
sudo tpm_version to confirm that a TPM is detected on your system.
$ sudo tpm_version
TPM 1.2 Version Info:
Chip Version: 126.96.36.199
Spec Level: 2
Errata Revision: 3
TPM Vendor ID: IFX
Vendor Specific data: 04280077 0074706d 3631ffff ff
TPM Version: 01010000
Manufacturer Info: 49465800
If your machine came with a TPM, you can now take advantage of its capabilities, if you already have particular uses planned for it. Enjoy!