[PVE-User] Debian buster inside PVE KVM

[Fabian Grünbichler]

On Mon, Jul 08, 2019 at 02:16:34AM +0200, Chris Hofstaedtler | Deduktiva wrote:
> Hello,
> 
> while doing some test upgrades I ran into the buster RNG problem [1],
> where the newer kernel and systemd use a lot more randomness during
> boot, causing startup delays.
> 
> Very clearly noticable in dmesg:
> [    1.500056] random: fast init done
> [  191.700840] random: crng init done
> [  191.701445] random: 7 urandom warning(s) missed due to ratelimiting
> 
> I couldn't find a supported way of enabling virtio_rng [2] in PVE
> 5.4 or the 6.0 beta. As a test, I've set "args: -device
> virtio-rng-pci" and that appears to work - the VM auto-loads the
> virtio_rng kmod and "crng init done" happens at ~4s after poweron.

yes, that's the way to go for now.

> Are there any recommendations at this time or plans for adding
> virtio_rng?

filed [1] to keep track of adding proper support, as it sounds like a
simple enough but worthwhile feature to me :)

1: https://bugzilla.proxmox.com/show_bug.cgi?id=2264