general high-level discussion about spectrum
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From: Thomas Leonard <talex5@gmail.com>
To: Alyssa Ross <hi@alyssa.is>
Cc: Michael Raskin <7c6f434c@mail.ru>, discuss@spectrum-os.org
Subject: Re: New user getting started questions
Date: Thu, 7 Jan 2021 11:38:31 +0000	[thread overview]
Message-ID: <CAG4opy8_BZOZmWGqoG3u4DiQ_EDaLFXCjrY773=SZrfZgN3GNQ@mail.gmail.com> (raw)
In-Reply-To: <CAG4opy_9Q2aeX1UZkksnVfZbeA51UoL6xFkY5N4xny=XFUdnYQ@mail.gmail.com>

On Wed, 6 Jan 2021 at 15:56, Thomas Leonard <talex5@gmail.com> wrote:
[...]
> exec sudo "$mktuntap" -pvB 3 \
>   sudo -u "$USER" -C 4 \
>    "$crosvm" run \
>     -p init=/sbin/init \
>     -p "spectrumcmd=$(printf %s "$command" | base64 -w0)" \
>     --tap-fd 3 \
>     --seccomp-log-failures \
>     --root "$rootfs" \
>     --host_ip 10.0.0.1 \
>     --netmask 255.0.0.0 \
>     --mac c0:ff:ee:c0:ff:ee \
>     -m 4096 \
>     "$@" \
>     "$kernel"
>
> I got "sudo: you are not permitted to use the -C option", which I
> fixed by editing the sudoers file. Then it fails with:
>
> [ERROR:src/main.rs:1351] The architecture failed to build the vm:
> error creating devices: failed to set up virtio networking: failed to
> open tap device: failed to create tap interface: Operation not
> permitted (os error 1)

D'oh! I just realised you're not supposed to use the other network
options when using `--tap-fd`!

I was then able to browse the web from crosvm, like this:

- Add pkgs/os-specific/linux/spectrum/rootfs/etc/resolv.conf with e.g.
"nameserver 8.8.8.8".
- Configure the virtual eth0 in the VM setup script:
   foreground { ifconfig eth0 10.0.0.2 up }
   foreground { route add default gateway 10.0.0.1 }
- Enable NAT in configuration.nix, e.g.
  networking.nat = {
    enable = true;
    externalInterface = "eno2";
    internalIPs = [ "10.0.0.0/8" ];
  };
- Start the VM.
- Run "sudo ifconfig tap0 10.0.0.1 up" on host.
- Run firefox in VM to browse the web :-)


-- 
talex5 (GitHub/Twitter)        http://roscidus.com/blog/
GPG: 5DD5 8D70 899C 454A 966D  6A51 7513 3C8F 94F6 E0CC

  reply	other threads:[~2021-01-07 11:39 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-05 19:27 Thomas Leonard
2021-01-05 20:09 ` Michael Raskin
2021-01-06  7:04   ` Alyssa's break Alyssa Ross
2021-01-06  9:11     ` Michał "rysiek" Woźniak
2021-01-06  7:00 ` New user getting started questions Alyssa Ross
2021-01-06 15:56   ` Thomas Leonard
2021-01-07 11:38     ` Thomas Leonard [this message]
2021-01-07 15:33     ` Thomas Leonard
2021-01-14 12:29     ` Alyssa Ross
2021-01-14 12:51       ` Alyssa Ross
2021-01-20 13:04         ` Thomas Leonard
2021-01-27 17:31           ` Thomas Leonard
2021-03-07 12:52             ` Thomas Leonard
2021-03-09 16:59               ` Qubes-lite With KVM and Wayland Alyssa Ross
2021-03-10 14:19                 ` Thomas Leonard
2021-03-10 22:34                   ` Alyssa Ross
2021-03-09 16:25             ` New user getting started questions Alyssa Ross
2021-03-13  7:21               ` Thomas Leonard
2021-03-13 13:52                 ` Alyssa Ross
2021-10-30 12:58                 ` Thomas Leonard
2021-11-03 11:36                   ` Alyssa Ross
2021-11-03 18:27                     ` Thomas Leonard
2021-11-10 12:58                       ` Alyssa Ross
2021-11-10 12:00                         ` Thomas Leonard
2021-11-11 11:09                           ` Alyssa Ross
2021-11-11 16:12                             ` Thomas Leonard
2021-11-12 10:47                               ` Alyssa Ross
2022-03-13 15:08                         ` Thomas Leonard
2022-03-15 14:06                           ` Alyssa Ross
2022-03-15 20:23                             ` Alyssa Ross
2022-03-16 16:18                               ` Using virtio-gpu instead of virtwl Thomas Leonard
2022-03-16 16:54                                 ` Alyssa Ross
2022-03-21 12:10                                 ` Thomas Leonard
2022-03-21 16:05                                   ` Alyssa Ross
2022-03-22 11:08                                     ` Thomas Leonard
2022-03-22 11:16                                       ` Alyssa Ross
2022-03-22 20:05                                         ` Thomas Leonard
2022-04-06 12:19                                           ` Thomas Leonard
2022-04-13 17:12                                             ` Thomas Leonard
2022-04-14 13:57                                               ` Alyssa Ross
2022-04-19 12:58                                                 ` Thomas Leonard
2022-04-19 12:01                                                   ` Alyssa Ross
2022-05-15 15:20                                                 ` Thomas Leonard
2022-05-16 11:55                                                   ` Alyssa Ross
2022-05-18  9:55                                                     ` Thomas Leonard
2022-06-05 16:29                                                       ` Thomas Leonard
2022-08-09 12:00                                     ` Alyssa Ross
2022-10-10 15:16                                       ` Thomas Leonard
2022-10-10 16:53                                         ` Alyssa Ross

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