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.
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