ubuntu-image 0.15

[knitzsche]

On 02/16/2017 05:20 PM, Barry Warsaw wrote:
> Hi Kyle,
>
> On Feb 16, 2017, at 04:44 PM, knitzsche wrote:
>
>> I had been (with 0.14 snap) building the image and saving to file with -o
>> my.img
>>
>> Then mounting the img partitions with (as root):
>>
>> kpartx -a my.img
>> loopmnt=`findfs LABEL=writable`
>> mount $loopmtn DIR
>>
>> With 0.15, that mount fails with a Kill message.
>
> Can you provide the exact failure you're seeing?  What version of Ubuntu are
> you on?  It works for me on Zesty:

* xenial
* my model points at branded store that contains learnit snap
* I add three snaps to the image via --extra-snaps

ubuntu-image \
     --channel stable \
     -o $image_name \ (LOWERCASE -o)
     --image-size 4G \
     --extra-snaps  pi2-kernel_26.snap \ this is local
     --extra-snaps  pi2_36.snap \ local
     --extra-snaps learnit \ from branded store into which it is 
whitelisted via store admin
     $model

=== snap experience

$ sudo kpartx -a test-learnit.img
[sudo] password for knitzsche:
$ findfs LABEL=writable
/dev/mapper/loop4p2
$ sudo mount /dev/mapper/loop4p2 mnt
Killed
$

That does not happen with the ubuntu-image from deb on xenial (see below)

$ snap info ubuntu-image
name:      ubuntu-image
summary:   "Create Ubuntu images"
publisher: canonical
description: |
   Use this tool to create Ubuntu images.

commands:
   - ubuntu-image
tracking:  beta
installed: 0.15+snap3 (48) 17MB devmode
refreshed: 2017-02-15 15:05:38 -0500 EST
channels:
   beta:    0.15+snap3 (48) 17MB devmode
   edge:    0.15+snap3 (48) 17MB devmode

===== deb experience

$ sudo kpartx -a test-learnitdeb.img
[sudo] password for knitzsche:
$ findfs LABEL=writable
/dev/mapper/loop2p2
$ sudo mount /dev/mapper/loop2p2 mnt
$ ls mnt
lost+found  system-data

$ apt policy ubuntu-image
ubuntu-image:
   Installed: 0.14+16.04ubuntu2
   Candidate: 0.14+16.04ubuntu2
   Version table:
  *** 0.14+16.04ubuntu2 500
         500 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe 
amd64 Packages
         500 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe 
i386 Packages
         100 /var/lib/dpkg/status

cheers



>
> % snap install ubuntu-image --devmode --beta
> ubuntu-image (beta) 0.15+snap3 from 'canonical' installed
> % ubuntu-image -O . models/pc-amd64-model.assertion
> Fetching core
> Fetching pc-kernel
> Fetching pc
> Partition size/offset need to be a multiple of sector size (512).  The size/offset will be rounded up to the nearest sector.
> % sudo kpartx -a pc.img
> % loopmnt=`findfs LABEL=writable`
> % sudo mount $loopmnt mnt
> % ls mnt
> lost+found/  system-data/
>
> Cheers,
> -Barry
>