On Mi, 24.04.19 12:37, Nikos Mavrogiannopoulos (n...@redhat.com) wrote: > > As mentioned before: systemd itself already needs entropy itself (it > > assigns a random 128bit id to each service invocation, dubbed the > > "invocation ID" of it, and it generates the machine ID and seeds its > > hash table hash functions), hence rngd doesn't cut it anyway, since it > > starts after systemd, being a service managed by systemd. If rngd was > > supposed to fill up the entropy pool at boot, it would have to run as > > initial PID 1 in the initrd, before systemd, and then hand over to > > systemd only after the pool is full. But it doesn't, hence rngd is > > pointless: it runs too late to be useful. > > The goal of running rngd early was to have the system boot, not > necessarily to address systemd's need for random numbers. In that it > is successful. I do not disagree that it is not a clean solution.
But how can it be successful? If systemd already needs to wait until the pool is full to get the randomness it needs (and thus blocks system boot-up as a whole) then what's the point in running rngd afterwards? To reach the point where rngd can be run we already need the pool to be full, and hence rngd can't do any good at all anymore, whatsoever. Lennart -- Lennart Poettering, Berlin _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
