perhaps controversial: some qemu startup fixes

[hallyn]

1. add rng device
2. use readonly virtfs mount
3. use nographics
4. do not use virtio-net

Signed-off-by: Serge Hallyn serge@hallyn.com

[raharper]

And since we're touching the QEMU command line bits, did we already drop the nic from QEMU_CMD_CORE and add it to the invocation of of qemu-full ?

[raharper]

You've -nodefaults in the QEMU_CMD_CORE and in NOGUI

[hallyn]

I meant to pull that out of NOGUI. But where do you think it belongs?

[raharper]

I meant to pull that out of NOGUI. But where do you think it belongs?

QEMU_CMD_CORE

[raharper]

Should we use regular vnc ports: -vnc :1 or something

[hallyn]

Probably. And I guess I need a copy of my next-unused-vnc-port script in here.

[raharper]

Yeah, I'd switch NOGUI name to VNC and move the -serial mon:stdio to the QEMU_CMD_CORE

[hallyn]

And since we're touching the QEMU command line bits, did we already drop the nic from QEMU_CMD_CORE and add it to the invocation of of qemu-full ?

Does this mean that you feel qemu-full requires it?

[raharper]

And since we're touching the QEMU command line bits, did we already drop the nic from QEMU_CMD_CORE and add it to the invocation of of qemu-full ?

Does this mean that you feel qemu-full requires it?

Not necessarily. It' possible that if things were expanded to test networking function in UEFI firmware that we'd want to have a nic; I think primarily the issue seen was booting with the nic included forced a PXE timeout when no one wanted to wait on that. So if this change solves not getting stuck waiting for PXE to do qemu-esp

[hallyn]

So if this change solves not getting stuck waiting for PXE to do qemu-esp

Indeed it does. But, did your sentence get cut off?

[raharper]

So if this change solves not getting stuck waiting for PXE to do qemu-esp

Indeed it does. But, did your sentence get cut off?

sigh Yes. Finishing the thought, if we're not blocking on PXE during boot, then we can always add a nic back in to which ever target (qemu-full or a new one qemu-net) when that's needed.

Thanks.

[hallyn]

I'm no longer using this, a-vm-builder being a better alternative. So we can close this unless someone wants it.

Hopefully we can post the alternative (a-vm-builder) soon.

[berlin4apk]

@hallyn have you a link to the "a-vm-builder"?
My Google search are unsuccessful

[hallyn]

@hallyn have you a link to the "a-vm-builder"? My Google search are unsuccessful

Argh - sorry, as I said "hopefully we can post it soon". It's an internal project which everyone has been agreed should be open sourced for the past 5 years, but we've not done the final push.

Let me see if I can get that moment going, but as I'd said if someone does want this in the meantime, then we shouldn't drop it after all.