(amd64)ubuntu@localhost:~$ sudo system-image-cli -v -n
[systemimage] Oct 13 10:36:51 2015 (1239) Looking for blacklist: https://system-image.ubuntu.com/gpg/blacklist.tar.xz
[systemimage] Oct 13 10:36:51 2015 (1239) [0x7f3265eb18d0] Requesting group download:
	https://system-image.ubuntu.com/gpg/blacklist.tar.xz -> /var/lib/system-image/keyring.tar.xz
	https://system-image.ubuntu.com/gpg/blacklist.tar.xz.asc -> /var/lib/system-image/keyring.tar.xz.asc

[systemimage] Oct 13 10:36:52 2015 (1239) Local blacklist file: /var/lib/system-image/blacklist.tar.xz
[systemimage] Oct 13 10:36:52 2015 (1239) Looking for: https://system-image.ubuntu.com/channels.json
[systemimage] Oct 13 10:36:52 2015 (1239) [0x7f32648540b8] Requesting group download:
	https://system-image.ubuntu.com/channels.json -> /tmp/system-image-u86v2k9l/channels.json
	https://system-image.ubuntu.com/channels.json.asc -> /tmp/system-image-u86v2k9l/channels.json.asc

[systemimage] Oct 13 10:36:53 2015 (1239) Local channels file: /tmp/system-image-u86v2k9l/channels.json
[systemimage] Oct 13 10:36:53 2015 (1239) got channel: ubuntu-core/rolling/edge
[systemimage] Oct 13 10:36:53 2015 (1239) found channel/device entry: ubuntu-core/rolling/edge/generic_amd64
[systemimage] Oct 13 10:36:53 2015 (1239) [0x7f32648540b8] Requesting group download:
	https://system-image.ubuntu.com/ubuntu-core/rolling/edge/generic_amd64/index.json -> /tmp/system-image-u86v2k9l/index.json
	https://system-image.ubuntu.com/ubuntu-core/rolling/edge/generic_amd64/index.json.asc -> /tmp/system-image-u86v2k9l/index.json.asc

[systemimage] Oct 13 10:36:54 2015 (1239) Upgrade path is 200:201
Upgrade path is 200:201
Target phase: 9%