about ubuntu snappy booting from USB device

Thu Mar 17 14:45:14 UTC 2016



At 2016-03-17 20:00:21, snappy-app-devel-request at lists.ubuntu.com wrote:
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>Today's Topics:
>
>   1. Snappy 16.04 survey summary (Daniel Holbach)
>   2. Re: Snappy 16.04 survey summary (Jamie Strandboge)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Wed, 16 Mar 2016 14:34:28 +0100
>From: Daniel Holbach <daniel.holbach at canonical.com>
>To: snappy-devel <snappy-devel at lists.ubuntu.com>, snappy-app-devel
>	<snappy-app-devel at lists.ubuntu.com>
>Subject: Snappy 16.04 survey summary
>Message-ID: <56E960E4.8010300 at canonical.com>
>Content-Type: text/plain; charset=utf-8
>
>Hello everybody,
>
>Didier and I conducted a short survey consisting of two parts:
>
>Experience with Snappy 16.04
>Feedback on new approach for examples of building apps with Snappy 16.04
>
>We had about 20 responses, some incomplete, so 16 in total. The scope
>was Snappy 16.04, which might have excluded users who haven?t reviewed
>the newest in Snappy yet.
>
>Below is a short summary of the findings, I?ll attach a summary of the
>individual replies at the bottom. Make sure you read it too, it includes
>some really nice quotes.
>
>
>Interest
>========
>
>One of the questions asked which background or interest in Snappy the
>audience had and the responses included: community members, innovators,
>app builders, industrial automation, IoT gateway, security, ARM support,
>commercial software prople, product management, robot builders and
>people from Canonical.
>
>
>Experience with Snappy
>======================
>
>The overall feedback was very good. It appears that people really like
>Snappy?s concept and the gap it fills. Positively mentioned were
>explicitly (among other things) the containment story and the process of
>snapping.
>
>Seen as lacking at the moment was mostly documentation (missing
>examples, missing use-cases, some concepts which are harder to
>understand) and stability (somewhat expected in the development cycle).
>Some worries were brought up about the general state of completion of
>the all-snaps story, the library story and if 16.04 will see full
>containment of snaps and the rate of renaming things.
>
>Some responders also brought up some requests. Among them was the
>request for a realtime preempt kernel and Ubuntu SDK/IDE support (others
>wanted a GUI for snappy/snapcraft).
>
>
>Results on the new examples proposal
>====================================
>
>Fewer people commented on this part (only 9 persons gave feedback),
>probably due to the additional time it requested to look at it.
>
>The general feedback is really supportive of this new approach and not
>much was added on the examples structures (README.md) and scope.
>
>
>On the opened question for additional examples idea, we note some
>kernel, gadget and framework examples (those will come as soon as
>snapcraft have better support for this), shared libraries, mosquitto (or
>communication framework in general), interfaces exposure. Generally, the
>requests are around ?add as many use case as well? as industrial
>automations, (which are more demos than examples).
>
>
>
>Summary of responses
>====================
>
>The responses below are anonymised and somewhat summarised for easier
>reading. They?re still valuable feedback and should be reviewed:
>
>Interest
> - Community/general hacks
> - Builds snappy apps
> - Innovator
> - Industrial Automation and IoT Gateway
> - Snappy Security
> - Interested in Open Source and their customer want to use
>   MCU like with Open source linux.
> - ARM support
> - Packages commercial software for Ubuntu and hope snappy will
>   make managing, updating, and shipping dependencies less of a
>   pain than a group of deb packages.
> - Works on snaps and tried various images.
> - Product management.
> - Works on the store.
> - Relies on snappy to deliver snaps that will be leveraged by
>   other snaps.
> - Works on robots.
>
>Feedback about 16.04 Snappy
>
>Good
> - Snappy is moving things: ?We are at the end of a technology
>   cycle, developing stuff for today's needs is an extremely
>   long process, please try to start it!?
> - Likes Snappy?s speed.
> - The respondent hasn?t started investigating Snappy yet, but
>   likes that it?s a new technology and its stability.
> - Enjoy Snappy?s Package management concept.
> - Really wants containment, Snappy would also work in a
>   rolling release model.
> - Likes .snaps. Says we should include them in 16.04.
> - ?It really brings ubuntu into a new world without lots of
>   baggage, and opens the door for new ways of thinking about
>   developing for iot?.
> - Wants to see Snaps on classic Ubuntu. ?Keep going! Right
>   thing, right time :)?.
> - Likes that building snaps has improved from 16.04 to 15.04.
> - Likes the process of snapping. Really enjoys the platform.
>
>Bad
> - Docs a bit hard to grasp, sometimes too complex.
> - Wants things to be easier to use. Sees no bugs, but wants
>   more stability.
> - No specific bugs in mind, but would like to have to intervene
>   less. Raspberry Pi seems to be lacking.
> - Current biggest issue is golang in qemu doesn't support
>   SIGMAX.
> - Is concerned that containment of snappy apps may not make
>   it in 16.04.
> - Says snappy needs more docs and examples.
> - Suffers from docker not working in their country. Snappy seems
>   to sometimes fail to update or rollback the snappy(ubuntu-core)
>   on BBB. Wants to see more compatibility for ARM. Really likes it
>   but sees lots of things which need completion.
> - Needs more docs, says ?Security model is tricky to understand
>   and work with?. Completeness of the all-snap story is missing.
> - Would like to see good stable, documentation for building snaps.
>   Has seen serious problems with documentation and examples.
> - Wants some means to utilize shared libraries, especially where
>   there may be a variety of vendor specific implementations. e.g.
>   OpenGL/GLES. Feels the shared library story is missing the most.
> - Wants communication between snaps and more stability in the
>   naming of things.
>
>Requests
> - Request for pkg-man (massive automated deploys, rollback etc.),
>   ?SUN with OpenSolaris IPS and BE open the door?. Mentioned
>   that Snappy is not general-purpose pkg-man. MAAS being specific
>   to a restricted server area. Design-wise snappy should use zfs.
>   Request for drop-in replacement of apt/dpkg with delta-upgrade,
>   OpenSolaris/IllumOS BE (os clone and rollbacks), easy to
>   automate (no more debconf!).
> - Want to see a realtime Preempt Kernel.
> - Would like to see Ubuntu SDK / IDE support.
> - GUI for snappy.
> - Hopes that that needing an Ubuntu One account and publishing
>   snaps to the store will not make our development, testing, and
>   deployment cycles more difficult. Currently we use our own
>   reprepro server with multiple sections for our deb packages.
> - GUI for snapcraft.
>
>Question
> - Is the Store API is documented? Yes,
>   http://wiki.ubuntu.com/AppStore/Interfaces/
>
>New examples approach:
> - 9 out of 16 commented on this and all liked the idea.
> - Additional examples requested were:
>   - ?as many features and use-cases as possible?
>   - Focus on building stuff
>   - examples around industrial automation
>   - kernel, gadget and framework examples
>   - more detailed docs and examples which combine various
>     concepts, especially around interfaces. ?Components that
>     depend on, or even talk to each other in order to form a
>     larger service. Snaps that provide functionality to other
>     snaps. A blog or similar that walks the user through
>     debugging problems and fixing basic issues would be
>     helpful.?
>   - shared library examples
>   - mosquitto examples
>   - examples about interfaces
>
>
>
>Have a great day,
> Daniel and Didier
>
>
>
>
>------------------------------
>
>Message: 2
>Date: Wed, 16 Mar 2016 14:35:24 -0500
>From: Jamie Strandboge <jamie at canonical.com>
>To: Daniel Holbach <daniel.holbach at canonical.com>, snappy-devel
>	<snappy-devel at lists.ubuntu.com>, snappy-app-devel
>	<snappy-app-devel at lists.ubuntu.com>
>Subject: Re: Snappy 16.04 survey summary
>Message-ID: <1458156924.6533.19.camel at canonical.com>
>Content-Type: text/plain; charset="utf-8"
>
>On Wed, 2016-03-16 at 14:34 +0100, Daniel Holbach wrote:
>>?
>> ?- Is concerned that containment of snappy apps may not make
>> ???it in 16.04.
>
>I find this comment curious and want to make sure that this point is very clear:
>apps are confined now and have been for the whole 16.04 cycle and apps will
>continue to be confined at 16.04 release.
>
>That said, the new interfaces work changes how the system produces the
>confinement and how system builders, developers and users work with various
>accesses, but it doesn't substantively change the low-level confinement story
>itself.
>
>-- 
>Jamie Strandboge             | http://www.canonical.com
>
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>End of snappy-app-devel Digest, Vol 16, Issue 8
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