From: Michael Olbrich <m.olbrich@pengutronix.de>
To: Marco Felsch <m.felsch@pengutronix.de>
Cc: barebox@lists.infradead.org, Sascha Hauer <sha@pengutronix.de>
Subject: Re: [PATCH 1/2] blspec: allow board files to overwrite config file settings
Date: Wed, 20 Jan 2021 13:31:33 +0100 [thread overview]
Message-ID: <20210120123133.GY9321@pengutronix.de> (raw)
In-Reply-To: <20210120105422.zpizm7bet22ze4dq@pengutronix.de>
On Wed, Jan 20, 2021 at 11:54:22AM +0100, Marco Felsch wrote:
> On 21-01-20 10:03, Sascha Hauer wrote:
> > On Tue, Jan 19, 2021 at 12:42:08PM +0100, Marco Felsch wrote:
> > > Hi Sascha,
> > >
> > > On 21-01-19 12:01, Sascha Hauer wrote:
> > > > Hi Marco,
> > > > On Mon, Jan 18, 2021 at 09:48:49PM +0100, Marco Felsch wrote:
> > > > > This commit adds the support to overwrite and/or adapt blspec config
> > > > > files by the following global variables:
> > > > > - global.blspec.fixup.devicetree
> > > > > - global.blspec.fixup.initrd
> > > > > - global.blspec.fixup.options
> > > > > - global.blspec.fixup.linux
> > > > > - global.blspec.fixup.devicetree-overlay.
> > > > >
> > > > > Overwriting blspec-config's shouldn't be the normal case but there are
> > > > > cases where this support is needed. One use-case can be a special
> > > > > handling during update. E.g. the normal boot-flow don't need the initrd
> > > > > but the update-flow uses it because the update system is on the initrd.
> > > >
> > > > When you have an update system and a regular system on the same
> > > > filesystem then I would expect an additional bootspec entry for the
> > > > update system.
> > >
> > > AFAIK, barebox tries to find the correct entry by checking all config
> > > files and loads the first matching config file. Is there a way to
> > > specify an explicite config file?
> >
> > Not yet, but maybe we are at a point where a way should be added.
>
> Maybe but how do you decide it? Also IMHO this wouldn't be that flexible
> as this solution.
Maybe allow globing?
So I can say I want to boot 'default.conf' and create that as a symlink in
the filesystem. That would be for the desktop use-case with multiple kernel
versions.
Or I could switch between '*-regular.conf' and '*-update.conf'. And then
provide two entries for each device-tree.
Michael
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next prev parent reply other threads:[~2021-01-20 12:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-18 20:48 Marco Felsch
2021-01-18 20:48 ` [PATCH 2/2] Documentation: blspec: Add blspec fixup documentation Marco Felsch
2021-01-19 11:01 ` [PATCH 1/2] blspec: allow board files to overwrite config file settings Sascha Hauer
2021-01-19 11:42 ` Marco Felsch
2021-01-20 9:03 ` Sascha Hauer
2021-01-20 10:54 ` Marco Felsch
2021-01-20 12:31 ` Michael Olbrich [this message]
2021-01-20 13:26 ` Marco Felsch
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