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PureBoot is our high-security, tamper-detecting boot firmware. With the release of version 22 we have added a new feature called “PureBoot Basic” that lets you optionally disable the tamper detection, leaving you with a clean, simple, and still powerful boot firmware with more recovery options than a traditional coreboot BIOS and GRUB.

Normally when you boot Pureboot, the Librem Key verifies the computer’s boot firmware is still in a verified state. Librem Key is a USB token that integrates with Pureboot and helps in protecting your system from snooping while you are away. Giving you peace of mind your computer software is untampered with.

For those that don’t need PureBoot’s extra security but want some of the other features, Pureboot Basic get’s out of the way and lets you boot by disabling tamper-detecting features.

Update to A Newer Version of PureBoot

To enable PureBoot Basic, ensure you’re running the latest version of PureBoot.

Upgrade to the Pureboot Basic

For those running an older version of PureBoot:

  • Download the new PureBoot ROM from our release repository for your corresponding hardware.
  • Copy that to a USB thumb drive and attach it to your Librem device.
  • Power on your Librem and head into the PureBoot settings by pressing the escape key.
  • Head to Options -> Flash or update the BIOS -> Flash the firmware with a new ROM and retain BIOS settings.
  • Next, select your USB device, then select the ROM file.
  • Select “yes” to proceed.
  • Your BIOS will update and your computer will reboot once done.

Moving from Coreboot to Pureboot

If you’re currently running coreboot, you can use this utility to flash the firmware. To use it open a terminal and run these commands:

mkdir ~/updates

cd ~/updates

wget https://source.puri.sm/coreboot/utility/raw/master/coreboot_util.sh -O coreboot_util.sh

sudo bash ./coreboot_util.sh

  • Enter your root password then enter a 1 to select “Update firmware using pre-built image”
  • The script will prompt you for your device model; enter your device’s corresponding number.
  • Next, select PureBoot as the firmware to be flashed.
  • If asked to update the serial number, the default option to extract is fine.
  • Once flashed you’ll need to attach your Librem key, reboot, and follow the setup guide.

Have a look at this video for a deep dive into how the Librem Key works with PureBoot, or continue on to enable PureBoot Basic.

Enabling Pureboot Basic

Go to: Options -> Change Configuration Settings -> Enable PureBoot Basic Mode.

To save the configuration changes, select Save the current configuration to the running BIOS.

Once your computer reboots, you can enjoy a quick startup and still have powerful tools like grub config parsing, ext4 boot partition support, and a built-in Linux shell for advanced debugging.

Purism Products and Availability Chart

 ModelStatusLead Time 
USB Security Token Purism Librem KeyLibrem Key

(Made in USA)
In Stock
($59+)
10 business days
Librem 5In Stock
($999+)
3GB/32GB
10 business days
Librem 5 + SIMple
(4 GB Data)
In Stock
($99/mo)
10 business days
Librem 5 + SIMple Plus
(10 GB Data)
In Stock
($129/mo)
10 business days
Librem 5 + AweSIM
(Unlimited Data)
In Stock
($169/mo)
10 business days
Most Secure Laptop Purism Librem 14Librem 14In Stock
($1,370+)
10 business days
Most Secure PC Purism Librem Mini
Librem MiniMar 2024
($799+)
Shipping March, 2024
Purism Liberty Phone with Made in USA ElectronicsLiberty Phone
(Made in USA Electronics)
Mar 2024
($1,999+)
4GB/128GB
Shipping March, 2024
Librem 11Mar 2024
($999+)
8GB/1TB
Shipping March, 2024
Most Secure Server Purism Librem ServersLibrem ServerMar 2024
($2,999+)
Shipping March, 2024
The current product and shipping chart of Purism Librem products, updated on February 7th, 2024

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