Thanks, I understand now.
2014-02-04 Eelco Dolstra <eelco.dols...@logicblox.com>: > Hi, > > On 04/02/14 12:04, Sergey Mironov wrote: > >> Hi! I've got a troubles while trying to understand how does >> install-grub.pl works (maybe that is because I'm not skilled in perl). >> >> Here is what I am trying to figure out: grub.nix calls >> ./install-grub.pl with XML parameter list as an argument. >> >> https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/system/boot/loader/grub/grub.nix#L242 >> >>>From the perl side, ./install-grub.pl reads ARGV[0] and ARGV[1]. >> ARGV[0] turns out to contain the path to XML. OK. And ARVG[1] contains >> a mysterious config. AFAIK it should point to the folder with kernel, >> initrd and others. But where does it come from? > > It's passed from switch-to-configuration.pl: > > # Install or update the bootloader. > if ($action eq "switch" || $action eq "boot") { > system("@installBootLoader@ $out") == 0 or exit 1; > } > > Note that switch-to-configuration.pl is called in turn by nixos-rebuild. > > The string '@installBootLoader@' comes from the option > system.build.installBootLoader, which is set by grub.nix to (approximately) > "${pkgs.perl}/bin/perl ${./install-grub.pl} ${grubConfig}", where > ${grubConfig} > is the XML file. > > -- > Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/ > _______________________________________________ > nix-dev mailing list > nix-dev@lists.science.uu.nl > http://lists.science.uu.nl/mailman/listinfo/nix-dev _______________________________________________ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
