Firmware version comparison

[Mirza Kapetanovic]

Hi,

We're using swupdate with hawkBit, and so far it works really well. But it's not clear to me from the documentation how installed firmware version is compared with available update version.

1. The sw-description file contains a version tag directly underneath the software tag. Is it correctly understood that this is the schema version and not the update software/firmware version (or it's not used at all)?

2. Three of the swupdate command line tool parameters, -N, -max-version and -R, state: "This will be checked with the version of new software". Where is the version of the new software specified? Is it part of sw-description?

3. You can specify no-downgrading and no-reinstalling underneath the globals tag in swupdate.cfg file. It seems to be related to the mentionened command line parameters. But again, with what are the two values compared with?

[Stefano Babic]

Hi Mirza,

On 14.09.21 12:44, Mirza Kapetanovic wrote:
> Hi,
>
> We're using swupdate with hawkBit, and so far it works really well. But
> it's not clear to me from the documentation how installed firmware
> version is compared with available update version.
>

SWUpdate supports per SWU version (the whole version) and per artifact
(each artifact can have an own version).

The global version is set in sw-description with the version attribute.

> 1. The sw-description file contains a version tag directly underneath
> the software tag.

This is the global version and sets the version of the whole SWU.

> Is it correctly understood that this is the schema
> version and not the update software/firmware version (or it's not used
> at all)?

No, it is the update software/firmware version.

>
> 2. Three of the swupdate command line tool parameters, -N, -max-version
> and -R, state: "This will be checked with the version of new software".
> Where is the version of the new software specified? Is it part of
> sw-description?

Yes, they use the global version.

>
> 3. You can specify no-downgrading and no-reinstalling underneath the
> globals tag in swupdate.cfg file. It seems to be related to the
> mentionened command line parameters.

Right.

> But again, with what are the two
> values compared with?

See above.

Best regards,
Stefano Babic


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[Mirza Kapetanovic]

Thanks for the reply.