On Wed, Jul 11, 2018 at 12:58:44AM -0400, Jon Ringle wrote:
> On Tue, Jul 10, 2018 at 3:48 AM Michael Olbrich
> <m.olbr...@pengutronix.de> wrote:
> If you look into the `init` script and the `scripts/local` and
> `scripts/nfs` scripts, you'll see that there are predefined hooks
> where it call `run_scripts ...` with some predetermined directory
> names. The package only provides some scripts in `scripts/init-top`,
> and `scripts/local-premount`, but the hooks in the scripts allow for
> the user to provide scripts in any of these directories:
> init script calls:
> run_scripts /scripts/init-top
> run_scripts /scripts/init-premount
> mount_top (depending on ${BOOT} value which should be either "local"
> or "nfs", will call the function of that name in `local` or `nfs`
> scripts, which will call either: `run_scripts /scripts/local-top` or
> `run_scripts /scripts/nfs-top`)
> mount_premount (same logic as mount_top... resolving to either
> `run_scripts /scripts/local-premount` or `run_scripts
> /scripts/nfs-premount`)
> mount_bottom (ditto)
> mountroot (defined in /scripts/local or /scripts/nfs)
> 
> In all the following are the possible trees of user defined scripts
> that could be installed:
> /scripts/init-top
> /scripts/init-premount
> /scripts/init-bottom
> /scripts/local-top
> /scripts/local-block
> /scripts/local-premount
> /scripts/local-bottom
> /scripts/nfs-top
> /scripts/nfs-premount
> /scripts/nfs-bottom
> 
> I could just do an $(install_alternative_tree ...) for each of the above?

That sounds good. Note, that install_alternative_tree will fail if no
source directory is found. So you either need to make them optional or
create empty directories.

Michael

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