$ proxy ./get-proposed-cloudimg xenial
--2017-10-20 20:34:24-- http://cloud-images.ubuntu.com/daily/server/xenial/current/xenial-server-cloudimg-amd64-disk1.img
Connecting to 10.245.168.2:8000... connected.
Proxy request sent, awaiting response... 200 OK
Length: 290652160 (277M) [application/octet-stream]
Saving to: ‘xenial-server-cloudimg-amd64.img.tmp’
xenial-server-cloudimg-amd64. 100%[================================================>] 277.19M 27.5MB/s in 14s
2017-10-20 20:34:39 (19.5 MB/s) - ‘xenial-server-cloudimg-amd64.img.tmp’ saved [290652160/290652160]
Formatting 'xenial-server-cloudimg-amd64-proposed.img.tmp', fmt=qcow2 size=2361393152 backing_file=xenial-server-cloudimg-amd64.raw cluster_size=65536 lazy_refcounts=off refcount_bits=16
Hit:1 http://archive.ubuntu.com/ubuntu xenial InRelease
Get:2 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]
Get:3 http://archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB]
Get:4 http://archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB]
Get:5 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages [370 kB]
Get:6 http://archive.ubuntu.com/ubuntu xenial-proposed InRelease [253 kB]
Get:7 http://security.ubuntu.com/ubuntu xenial-security/main Translation-en [164 kB]
Get:8 http://archive.ubuntu.com/ubuntu xenial/universe amd64 Packages [7,532 kB]
Get:9 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 Packages [175 kB]
Get:10 http://security.ubuntu.com/ubuntu xenial-security/universe Translation-en [93.0 kB]
Get:11 http://security.ubuntu.com/ubuntu xenial-security/multiverse amd64 Packages [2,756 B]
Get:12 http://security.ubuntu.com/ubuntu xenial-security/multiverse Translation-en [1,236 B]
Get:13 http://archive.ubuntu.com/ubuntu xenial/universe Translation-en [4,354 kB]
Get:14 http://archive.ubuntu.com/ubuntu xenial/multiverse amd64 Packages [144 kB]
Get:15 http://archive.ubuntu.com/ubuntu xenial/multiverse Translation-en [106 kB]
Get:16 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages [642 kB]
Get:17 http://archive.ubuntu.com/ubuntu xenial-updates/main Translation-en [269 kB]
Get:18 http://archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages [540 kB]
Get:19 http://archive.ubuntu.com/ubuntu xenial-updates/universe Translation-en [220 kB]
Get:20 http://archive.ubuntu.com/ubuntu xenial-updates/multiverse amd64 Packages [15.3 kB]
Get:21 http://archive.ubuntu.com/ubuntu xenial-updates/multiverse Translation-en [7,544 B]
Get:22 http://archive.ubuntu.com/ubuntu xenial-backports/main amd64 Packages [4,860 B]
Get:23 http://archive.ubuntu.com/ubuntu xenial-backports/main Translation-en [3,220 B]
Get:24 http://archive.ubuntu.com/ubuntu xenial-backports/universe amd64 Packages [5,896 B]
Get:25 http://archive.ubuntu.com/ubuntu xenial-backports/universe Translation-en [3,060 B]
Get:26 http://archive.ubuntu.com/ubuntu xenial-proposed/main amd64 Packages [104 kB]
Get:27 http://archive.ubuntu.com/ubuntu xenial-proposed/main Translation-en [38.6 kB]
Fetched 15.4 MB in 6s (2,207 kB/s)
Reading package lists...
Reading package lists...
Building dependency tree...
Reading state information...
The following packages will be upgraded:
cloud-init
1 upgraded, 0 newly installed, 0 to remove and 35 not upgraded.
Need to get 342 kB of archives.
After this operation, 94.2 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu xenial-proposed/main amd64 cloud-init all 17.1-18-gd4f70470-0ubuntu1~16.04.2 [342 kB]
Fetched 342 kB in 0s (446 kB/s)
Preconfiguring packages ...
E: Can not write log (Is /dev/pts mounted?) - posix_openpt (2: No such file or directory)
(Reading database ... 53931 files and directories currently installed.)
Preparing to unpack .../cloud-init_17.1-18-gd4f70470-0ubuntu1~16.04.2_all.deb ...
Unpacking cloud-init (17.1-18-gd4f70470-0ubuntu1~16.04.2) over (0.7.9-233-ge586fe35-0ubuntu1~16.04.2) ...
Processing triggers for ureadahead (0.100.0-19) ...
Setting up cloud-init (17.1-18-gd4f70470-0ubuntu1~16.04.2) ...
Installing new version of config file /etc/cloud/cloud.cfg ...
Installing new version of config file /etc/cloud/templates/hosts.suse.tmpl ...
Installing new version of config file /etc/cloud/templates/sources.list.debian.tmpl ...
Leaving 'diversion of /etc/init/ureadahead.conf to /etc/init/ureadahead.conf.disabled by cloud-init'
wrote xenial-server-cloudimg-amd64-proposed.img