Den 2011-10-04 11:21:06 skrev Marc Weber <[email protected]>: >> I'm aiming for a much simpler setup: mount your global nix store >> (which is shared with other hosts) in your new empty root, then >> either run a bootstrap script that generates /boot, or manually >> place the boot-symlinks there. After that it should be possible to >> just boot into an identical system as before. > It looks you don't know the internals of nixos well yet. > /boot is generated by any of the nixos-install activation or boot > phases. So if you "script that" you duplicate work - why? > Because each time you update nixos using nixos-rebuild new kernels have > to be copied to /boot depending on your configuration options - and that > has > already been implemented.
I admit I do not know the internals of nixos well yet. But I am aware that /boot is generated by nixos-rebuild. I do have my own boot loader generator already in place that generates boot menus, kernels and initrds that is suitable for my particular PXE-booting (ipxe, really). A script that would setup /boot, would of course make use of nixos-rebuild or nixos-install, not re-implement them. However, as I've mentioned previously, nixos-install simply does too much to be suitable for me. nixos-rebuild would be better suited, but the problem is that if you chroot into a "restored" system where you just have mounted /nix/store and /etc/nixos and then try to run nixos-rebuild, Nix will start destroying the existing store and rebuild _everything_. So, what I want to come up with is a script that would set up the restored store and nix in a way that would make it possible to run nixos-rebuild (or something similar) but still use the store in place. I don't want a NIX_OTHER_STORES, and I don't want to copy a minimal install store. Everything that is needed should really already exist in the mounted /nix/store. >> That said, I'd be happy to check out your code and see if I can work >> from it instead of nixos-install. Is your code publicly available > Yes - I push to gitorious. However I'd prefer you sending me your ssh > pub key so that you can clone from my SSH account. > http://mawercer.de/~nix/ > > However in your case > http://mawercer.de/~marc/minimal-install-archive.patch should be enough > if you're lucky. Thanks! I will start out from that and see where I end up. / Rickard _______________________________________________ nix-dev mailing list [email protected] http://lists.science.uu.nl/mailman/listinfo/nix-dev
