Re: [RAUC] RAUC

2018-10-30 Thread Enrico Joerns 

Hi Taimir,

On 10/30/18 12:27 PM, Taimir Aguacil wrote:

Hi Enrico,

Thank you for your detailed answer. This clarified some confusions.


great :)


How do I subscribe to the mailing list ?


Either visit the mailto-links here: https://www.rauc.io/pages/support.html

or 'manually' send a Mail with subject 'subscribe' to 
rauc-requ...@pengutronix.de.


Best regards

Enrico


BR
Taimir

From: Enrico Joerns 
Sent: Tuesday, October 30, 2018 8:39 AM
To: Taimir Aguacil
Cc: rauc@pengutronix.de
Subject: Re: [RAUC] RAUC

Hi Taimir,

On 10/29/18 11:27 AM, Taimir Aguacil wrote:

Dear RAUC team,

I attended the embedded Linux conference, and got to know you and see your demo 
there!

There were still some few open questions that I am putting in this email. It 
would be very helpful to get the answers.

Right now bundle and network modes are supported, is an update over USB 
supported ? If not, are there any plans to do so ?


maybe this needs some clarification: 'Bundle' is the data/archive format that 
we use for packing or unpacking the update artifacts and meta information.
This is not tied to any update *source*, which (potentially) could be quite 
everything from a µSD Card, over a USB stick to a network upload or whatever.

The real 'network mode' you might refer to, is deprecated in RAUC and will not 
gain further development.
This in fact was a 'non-bundle mode' using a signed manifest and requiring to 
download the install artifacts separately from a server.

However, this does not limit usage over network. Rather, it has been replaced 
by the more powerful usage of casync for chunked delta-like downloads.

In most cases the right way to go is to let an independent unit handle the 
provisioning of the bundle, e.g. by mounting a USB stick, downloading a file 
over network / internet, or whatever,
and then trigger RAUC (using D-Bus or CLI) with the path tho this (local or 
remote) bundle and let it do the rest of the work.

We have some examples code for some scenarios, e.g. for using a CGI or 
interacting with hawkbit, but our opinion is that the bundle source handling is 
quite use-case specific.


Furthermore, for an update over the air (Using cellular or WLAN), is it 
possible ? Or do I need to include a mechanism for the bundle download and then 
use the bundle mode where the bundle is on a partition ?


This basically picks up the same questions I hopefully answered on the previous 
question already.
In general, when you download an update, there are two options: (1) either you 
need to have some temporary storage for the entire artifact (e.g. a data 
partition, or RAM) or (2) you can stream the data directly into your target 
device / partition.
The latter is what casync bundles [1][2] offer you.

Also note that when using tar and compression the downloaded image might be 
much smaller than the actual partition it should be installed to.


I hope that answers your question. Please also consider subscribing to this 
Mailing list as, by default, it does not allow non-members to post questions 
(to prevent Spam).


Best regards,
Enrico


[1] https://rauc.readthedocs.io/en/latest/advanced.html#rauc-casync-support
[2] 
http://0pointer.net/blog/casync-a-tool-for-distributing-file-system-images.html

--
Pengutronix e.K.   | Enrico Jörns|
Industrial Linux Solutions | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-5080 |
Amtsgericht Hildesheim, HRA 2686   | Fax:   +49-5121-206917- |




--
Pengutronix e.K.   | Enrico Jörns|
Industrial Linux Solutions | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-5080 |
Amtsgericht Hildesheim, HRA 2686   | Fax:   +49-5121-206917- |


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Re: [RAUC] RAUC

2018-10-30 Thread Taimir Aguacil 
Hi Enrico, 

Thank you for your detailed answer. This clarified some confusions. 

How do I subscribe to the mailing list ? 

BR 
Taimir 

From: Enrico Joerns 
Sent: Tuesday, October 30, 2018 8:39 AM
To: Taimir Aguacil
Cc: rauc@pengutronix.de
Subject: Re: [RAUC] RAUC

Hi Taimir,

On 10/29/18 11:27 AM, Taimir Aguacil wrote:
> Dear RAUC team,
>
> I attended the embedded Linux conference, and got to know you and see your 
> demo there!
>
> There were still some few open questions that I am putting in this email. It 
> would be very helpful to get the answers.
>
> Right now bundle and network modes are supported, is an update over USB 
> supported ? If not, are there any plans to do so ?

maybe this needs some clarification: 'Bundle' is the data/archive format that 
we use for packing or unpacking the update artifacts and meta information.
This is not tied to any update *source*, which (potentially) could be quite 
everything from a µSD Card, over a USB stick to a network upload or whatever.

The real 'network mode' you might refer to, is deprecated in RAUC and will not 
gain further development.
This in fact was a 'non-bundle mode' using a signed manifest and requiring to 
download the install artifacts separately from a server.

However, this does not limit usage over network. Rather, it has been replaced 
by the more powerful usage of casync for chunked delta-like downloads.

In most cases the right way to go is to let an independent unit handle the 
provisioning of the bundle, e.g. by mounting a USB stick, downloading a file 
over network / internet, or whatever,
and then trigger RAUC (using D-Bus or CLI) with the path tho this (local or 
remote) bundle and let it do the rest of the work.

We have some examples code for some scenarios, e.g. for using a CGI or 
interacting with hawkbit, but our opinion is that the bundle source handling is 
quite use-case specific.

> Furthermore, for an update over the air (Using cellular or WLAN), is it 
> possible ? Or do I need to include a mechanism for the bundle download and 
> then use the bundle mode where the bundle is on a partition ?

This basically picks up the same questions I hopefully answered on the previous 
question already.
In general, when you download an update, there are two options: (1) either you 
need to have some temporary storage for the entire artifact (e.g. a data 
partition, or RAM) or (2) you can stream the data directly into your target 
device / partition.
The latter is what casync bundles [1][2] offer you.

Also note that when using tar and compression the downloaded image might be 
much smaller than the actual partition it should be installed to.


I hope that answers your question. Please also consider subscribing to this 
Mailing list as, by default, it does not allow non-members to post questions 
(to prevent Spam).


Best regards,
Enrico


[1] https://rauc.readthedocs.io/en/latest/advanced.html#rauc-casync-support
[2] 
http://0pointer.net/blog/casync-a-tool-for-distributing-file-system-images.html

--
Pengutronix e.K.   | Enrico Jörns|
Industrial Linux Solutions | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-5080 |
Amtsgericht Hildesheim, HRA 2686   | Fax:   +49-5121-206917- |


___
RAUC mailing list

Re: [RAUC] RAUC

2018-10-30 Thread Enrico Joerns 

Hi Taimir,

On 10/29/18 11:27 AM, Taimir Aguacil wrote:

Dear RAUC team,

I attended the embedded Linux conference, and got to know you and see your demo 
there!

There were still some few open questions that I am putting in this email. It 
would be very helpful to get the answers.

Right now bundle and network modes are supported, is an update over USB 
supported ? If not, are there any plans to do so ?


maybe this needs some clarification: 'Bundle' is the data/archive format that 
we use for packing or unpacking the update artifacts and meta information.
This is not tied to any update *source*, which (potentially) could be quite 
everything from a µSD Card, over a USB stick to a network upload or whatever.

The real 'network mode' you might refer to, is deprecated in RAUC and will not 
gain further development.
This in fact was a 'non-bundle mode' using a signed manifest and requiring to 
download the install artifacts separately from a server.

However, this does not limit usage over network. Rather, it has been replaced 
by the more powerful usage of casync for chunked delta-like downloads.

In most cases the right way to go is to let an independent unit handle the 
provisioning of the bundle, e.g. by mounting a USB stick, downloading a file 
over network / internet, or whatever,
and then trigger RAUC (using D-Bus or CLI) with the path tho this (local or 
remote) bundle and let it do the rest of the work.

We have some examples code for some scenarios, e.g. for using a CGI or 
interacting with hawkbit, but our opinion is that the bundle source handling is 
quite use-case specific.


Furthermore, for an update over the air (Using cellular or WLAN), is it 
possible ? Or do I need to include a mechanism for the bundle download and then 
use the bundle mode where the bundle is on a partition ?


This basically picks up the same questions I hopefully answered on the previous 
question already.
In general, when you download an update, there are two options: (1) either you 
need to have some temporary storage for the entire artifact (e.g. a data 
partition, or RAM) or (2) you can stream the data directly into your target 
device / partition.
The latter is what casync bundles [1][2] offer you.

Also note that when using tar and compression the downloaded image might be 
much smaller than the actual partition it should be installed to.


I hope that answers your question. Please also consider subscribing to this 
Mailing list as, by default, it does not allow non-members to post questions 
(to prevent Spam).


Best regards,
Enrico


[1] https://rauc.readthedocs.io/en/latest/advanced.html#rauc-casync-support
[2] 
http://0pointer.net/blog/casync-a-tool-for-distributing-file-system-images.html

--
Pengutronix e.K.   | Enrico Jörns|
Industrial Linux Solutions | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-5080 |
Amtsgericht Hildesheim, HRA 2686   | Fax:   +49-5121-206917- |


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[RAUC] RAUC

2018-10-30 Thread Taimir Aguacil 
Dear RAUC team,

I attended the embedded Linux conference, and got to know you and see your demo 
there!
There were still some few open questions that I am putting in this email. It 
would be very helpful to get the answers.

Right now bundle and network modes are supported, is an update over USB 
supported ? If not, are there any plans to do so ?
Furthermore, for an update over the air (Using cellular or WLAN), is it 
possible ? Or do I need to include a mechanism for the bundle download and then 
use the bundle mode where the bundle is on a partition ?

Thank you in advance.
Best Regards

Taimir Aguacil
Sr. Development Engineer
Radio & Communication Networks

Trapeze Switzerland GmbH
Industrieplatz 3 | 8212 Neuhausen | Switzerland

phone +41 58 911 17 92
fax +41 58 911 11 12
taimir.agua...@trapezegroup.com
www.trapezegroup.com
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