After updating my desktop from 15.09 to 16.03, it hangs on boot after printing the message "regenerating udev hardware database". I do not think the problem is directly related to that message; see below. Any ideas for debugging this?
Here's what I've figured out so far: * Using git-bisect, it seems that the problem starts at commit ecbe04b4, "systemd: Update to 225". (I had to cherry-pick 3cc04956, "libseccomp: Fix hash", to got it to build.) * I don't think the script that prints "regenerating udev hardware database" is the one that hangs. I added a debugging echo command to the end of system.activationScripts.udevd (in nixos/modules/services/hardware/udev.nix), and I saw the extra message when I booted. So the hang happens after. My next step was going to be to add more debugging statements to the boot process, but I'm having trouble figuring out where any of that stuff is. I can't find where system.activationScripts.udevd is called from, and I was mystified to find that grep -R "egenerating udev" /nix/store/(...)-nixos-16.0.3.git.3cc0495M produces no output (except some errors, e.g. etc/zoneinfo/posix is a directoly loop). James _______________________________________________ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
