James, maybe it's worth to open the ticket on https://github.com/NixOS/nixpkgs/issues/
2016-06-23 4:08 GMT+01:00 James Cook <[email protected]>: > On 22 June 2016 at 19:27, James Cook <[email protected]> wrote: > > 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 > > Another note: the problem also happens on master (commit 0167eef9). > The "regenerating udev hardware database..." message is no longer > printed at master; the last messages before the hang are "setting up > /etc..." and a bunch of "removing obsolete symblink ..." and "removing > group ..." messages. > > James > _______________________________________________ > nix-dev mailing list > [email protected] > http://lists.science.uu.nl/mailman/listinfo/nix-dev > -- Tomasz Czyż
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