[Jolla-Tablet] is the hardware locked down? Can I replace UEFI?
asked 2015-10-13 16:51:55 +0200
To have a good and secure device it's necessary to update the bootloader. As well it's much more secure to have an open-source bootloader. The ChromeOS is doing the splits between an open-source firmware/UEFI, secure device and a hackable device. You have to open the device up to install your own UEFI/bootloader, but it's possible (write protect screw).
Intel develops IntelBootGuard, it verifies the UEFI/BIOS when the computer starts. The verification is based on cryptographic algorithm signature (RSA). The key is fused into the chipset itself. If the verification fails, the device will not boot. If this happens, the device is a brick. IntelBootGuards take the ownership away from the user.
Is the Jolla-Tablet using the Intel Boot Guard? coreboot blog about Intel Boot Guard
Can I replace the UEFI with open-source firmware like coreboot?
So the final though is: Who owns the jolla tablet? Do I own it or Jolla owns it? old video over TPM but it fits for IntelBootGuard
PS. I will port coreboot to the jolla tablet if possible because of IntelBootGuard. PPS. EDIT change the question topic to be more understandable and move the bullet points downwards.
Jolla promised during the original campaign that the bootloader on the tablet will be open, so that it is possible to boot other operating systems on, such as Nemo Mobile, Fedora, etc.
So it would be nice if someone who already has the tablet confirms its actually the case in the end. :)
MartinK ( 2015-10-13 18:10:43 +0200 )edit@MartinK I don't want to use the bootloader, I want to replace it.
lynxis ( 2015-10-13 18:17:54 +0200 )edit