On Mon, 2011-06-13 at 19:02 +0200, Denys Vlasenko wrote: > On Mon, 2011-06-13 at 12:37 -0400, Simo Sorce wrote: > > On Mon, 2011-06-13 at 18:01 +0200, Denys Vlasenko wrote: > > > > We invoke sethostname() from inside systemd since that is one of the > > > > most trivial system calls known to men and doing this with a > > > separate > > > > binary is just absurd. This way we also can ensure that the hostname > > > is > > > > always initialised which is very useful for early boot logging and > > > other > > > > stuff. On systemd you get the guarantee that the hostname is always > > > set > > > > up if you run in userspace, > > > > > > You can't possibly know what kind of (possibly dynamic) hostname > > > admin might want to assign to his machine. The static hostname > > > may be as useless as default "(none)" which is set by kernel. > > > Anyway, logging with default hostname is not a catastrophe. > > > > > > Why do you set up stuff no one asked you to? > > > > Changing a machine hostname at random times is just asking for trouble. > > I just tried it. So far flames don't shoot out of my notebook. > > > > What's the problem of having a specific hostname set up at boot time? > > The problem with having specific hostname I had is when I boot many > dozens of diskless machines off the very same network filesystem, > I definitely DONT want them to use the same hostname. But until you can get "the real one" you basically are. > One method I saw in use in real world in this situation is to assign > hostnames by looking up (MAC_address,hostname) pairs in a database (say, > a config file), and then set the found hostname. Of course, this is not > possible until said database is available over network. In this case you are not better/worse than before, once the network will come up you'll add a script to change the hostname. Setting it earlier in systemd makes no difference. Simo. -- Simo Sorce * Red Hat, Inc * New York -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
