Kei Kebreau <k...@openmailbox.org> writes: > [ Unknown signature status ] > > ng0 <n...@we.make.ritual.n0.is> writes: > >> ng0 <n...@we.make.ritual.n0.is> writes: >> >>> Someone should update flashrom to 0.9.9. >>> (https://www.flashrom.org/Flashrom/0.9.9) >>> I tried and do not understand enough of flashrom to update the patch we >>> need. >> >> Additionally we need to check what's different about GuixSD that this >> happens: >> >> root@shadowwalker /home/ng0# flashrom -p internal -w >> libreboot_latest_stable.rom >> flashrom v0.9.7-r1711 on Linux 4.7.0-gnu (x86_64) >> flashrom is free software, get the source code at http://www.flashrom.org >> >> Calibrating delay loop... OK. >> Error accessing high tables, 0x100000 bytes at 0x000000007dad6000 >> /dev/mem mmap failed: Operation not permitted >> Failed getting access to coreboot high tables. >> ======================================================================== >> WARNING! You seem to be running flashrom on an unsupported laptop. >> Laptops, notebooks and netbooks are difficult to support and we >> recommend to use the vendor flashing utility. The embedded controller >> (EC) in these machines often interacts badly with flashing. >> See the manpage and http://www.flashrom.org/Laptops for details. >> >> If flash is shared with the EC, erase is guaranteed to brick your laptop >> and write may brick your laptop. >> Read and probe may irritate your EC and cause fan failure, backlight >> failure and sudden poweroff. >> You have been warned. >> ======================================================================== >> Aborting. >> Error: Programmer initialization failed. >> >> >> >> I value that GuixSD seems to be more protective than any other system in >> that regard where I could just become root and run flashrom, but maybe >> we need to make an exception for flashrom and similar software. >> Booting into ubuntu-live and running a statically linked binary of >> flashrom just made me flash libreboot stable. I want to do this from >> within GuixSD. > > This is mentioned in Libreboot's documentation (top of the page here: > https://libreboot.org/docs/install/index.html). The GuixSD Linux-libre > kernel is configured with CONFIG_STRICT_DEVMEM enabled, which I presume > Libreboot uses for software-based flashing. > > If you add linux to the list "use-package-modules" in your system > configuration and add (kernel-arguments '("iomem=relaxed")) to your > "operating-system" configuration, the flashing utility will work correctly.
Oh, interesting. Thanks for the explanation. Do you think we should add a pointer to this somewhere in the documentation, or add a link pointing to this email thread? I feel like this needs to be explained or be visible somewhere at our side. I think I want to keep this feature, and reconfigure the system only for updating libre/coreboot. Thanks -- ng0 For non-prism friendly talk find me on http://www.psyced.org
