Librem V4, Qubes, Heads and Librem Key

Hardware Librem (Other)
39

Just a few notes, as I was searching to boot from a non-PureOS USB key on Pureboot without any LibremKey. Here is how I managed it, as a quick sheet notes:

PREPARE FOR SIGNING ON EXTERNAL LAPTOP:

  1. Create a gpg key: gpg --full-gen-key
  2. Export GPG key: gpg --export --armor --output GPGKey.key

CREATE THE USB KEY:

  1. Format USB key as ext3 or ext4
  2. Copy ISO to key
  3. Sign ISO with GPG key : gpg --output MyISO.iso.asc --detach-sig MyISO.iso

HEADS/PUREBOOT:

  1. Import GPG key from the boot menu
  2. Select boot from USB

The link to the heads wiki helps me a lot: https://osresearch.net/InstallingOS/