% lxc launch ubuntu-daily:bionic curtin-sru-bionic
Creating curtin-sru-bionic
Starting curtin-sru-bionic

% cat <<EOF | lxc exec curtin-sru-bionic -- /bin/bash -x
echo "deb http://archive.ubuntu.com/ubuntu \$(lsb_release -sc)-proposed main universe" | sudo tee /etc/apt/sources.list.d/proposed.list
cloud-init status --long --wait && apt update -q && apt-cache policy curtin && apt install -qy curtin
dpkg --list | grep -c probert
echo "done"
EOF

++ lsb_release -sc
+ sudo tee /etc/apt/sources.list.d/proposed.list
+ echo 'deb http://archive.ubuntu.com/ubuntu bionic-proposed main universe'
deb http://archive.ubuntu.com/ubuntu bionic-proposed main universe
+ cloud-init status --long --wait
.......
status: done
time: Mon, 08 Jul 2019 19:03:10 +0000
detail:
DataSourceNoCloud [seed=/var/lib/cloud/seed/nocloud-net][dsmode=net]
+ apt update -q

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

Get:1 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Hit:2 http://archive.ubuntu.com/ubuntu bionic InRelease
Get:3 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:4 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages [448 kB]
Get:5 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 Packages [570 kB]
Get:6 http://security.ubuntu.com/ubuntu bionic-security/universe Translation-en [185 kB]
Get:7 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Get:8 http://security.ubuntu.com/ubuntu bionic-security/multiverse amd64 Packages [4008 B]
Get:9 http://security.ubuntu.com/ubuntu bionic-security/multiverse Translation-en [2060 B]
Get:10 http://archive.ubuntu.com/ubuntu bionic-proposed InRelease [242 kB]
Get:11 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages [8570 kB]
Get:12 http://archive.ubuntu.com/ubuntu bionic/universe Translation-en [4941 kB]
Get:13 http://archive.ubuntu.com/ubuntu bionic/multiverse amd64 Packages [151 kB]
Get:14 http://archive.ubuntu.com/ubuntu bionic/multiverse Translation-en [108 kB]
Get:15 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [680 kB]
Get:16 http://archive.ubuntu.com/ubuntu bionic-updates/main Translation-en [250 kB]
Get:17 http://archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [970 kB]
Get:18 http://archive.ubuntu.com/ubuntu bionic-updates/universe Translation-en [293 kB]
Get:19 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 Packages [6644 B]
Get:20 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse Translation-en [3556 B]
Get:21 http://archive.ubuntu.com/ubuntu bionic-backports/main amd64 Packages [2512 B]
Get:22 http://archive.ubuntu.com/ubuntu bionic-backports/main Translation-en [1644 B]
Get:23 http://archive.ubuntu.com/ubuntu bionic-backports/universe amd64 Packages [3736 B]
Get:24 http://archive.ubuntu.com/ubuntu bionic-backports/universe Translation-en [1696 B]
Get:25 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 Packages [55.7 kB]
Get:26 http://archive.ubuntu.com/ubuntu bionic-proposed/main Translation-en [22.6 kB]
Get:27 http://archive.ubuntu.com/ubuntu bionic-proposed/universe amd64 Packages [37.7 kB]
Get:28 http://archive.ubuntu.com/ubuntu bionic-proposed/universe Translation-en [21.7 kB]
Fetched 17.8 MB in 6s (2798 kB/s)
Reading package lists...
Building dependency tree...
Reading state information...
16 packages can be upgraded. Run 'apt list --upgradable' to see them.
+ apt-cache policy curtin
curtin:
  Installed: (none)
  Candidate: 19.1-7-g37a7a0f4-0ubuntu1~18.04.1
  Version table:
     19.1-7-g37a7a0f4-0ubuntu1~18.04.1 500
        500 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 Packages
     18.2-10-g7afd77fa-0ubuntu1~18.04.1 500
        500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
     18.1-5-g572ae5d6-0ubuntu1 500
        500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages
+ apt install -qy curtin

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

Reading package lists...
Building dependency tree...
Reading state information...
The following package was automatically installed and is no longer required:
  libfreetype6
Use 'apt autoremove' to remove it.
The following additional packages will be installed:
  curtin-common python3-curtin
The following NEW packages will be installed:
  curtin curtin-common python3-curtin
0 upgraded, 3 newly installed, 0 to remove and 16 not upgraded.
Need to get 158 kB of archives.
After this operation, 785 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 curtin-common all 19.1-7-g37a7a0f4-0ubuntu1~18.04.1 [17.5 kB]
Get:2 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 python3-curtin all 19.1-7-g37a7a0f4-0ubuntu1~18.04.1 [138 kB]
Get:3 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 curtin all 19.1-7-g37a7a0f4-0ubuntu1~18.04.1 [2488 B]
dpkg-preconfigure: unable to re-open stdin: No such file or directory
Fetched 158 kB in 1s (140 kB/s)
Selecting previously unselected package curtin-common.
(Reading database ... 28634 files and directories currently installed.)
Preparing to unpack .../curtin-common_19.1-7-g37a7a0f4-0ubuntu1~18.04.1_all.deb ...
Unpacking curtin-common (19.1-7-g37a7a0f4-0ubuntu1~18.04.1) ...
Selecting previously unselected package python3-curtin.
Preparing to unpack .../python3-curtin_19.1-7-g37a7a0f4-0ubuntu1~18.04.1_all.deb ...
Unpacking python3-curtin (19.1-7-g37a7a0f4-0ubuntu1~18.04.1) ...
Selecting previously unselected package curtin.
Preparing to unpack .../curtin_19.1-7-g37a7a0f4-0ubuntu1~18.04.1_all.deb ...
Unpacking curtin (19.1-7-g37a7a0f4-0ubuntu1~18.04.1) ...
Setting up curtin-common (19.1-7-g37a7a0f4-0ubuntu1~18.04.1) ...
Setting up python3-curtin (19.1-7-g37a7a0f4-0ubuntu1~18.04.1) ...
Setting up curtin (19.1-7-g37a7a0f4-0ubuntu1~18.04.1) ...
+ dpkg --list
+ grep -c probert
0
+ echo done
done