[arch-projects] [mkinitcpio] [PATCH] Add sd-resume hook.

[Dave Reisner]

On Wed, Aug 27, 2014 at 12:47:10AM +0400, Ivan Shapovalov wrote:
> This depends on the systemd hook. It adds systemd-hibernate-resume at .service
> and systemd-hibernate-resume-generator which perform userspace parsing of
> resume= kernel parameter, allowing to specify the resume device by its
> persistent path ("resume=/dev/disk/by-foo/bar") or fstab-like specifier
> ("resume=FOO=bar"), just like the root= parameter.
> ---
> 
> Given that relevant functionality has just landed in systemd git, it makes
> sense to pipeline things a bit (even if actual applying will be delayed until
> systemd-217).
> 
> Also, does this need to be a separate hook or can be merged into 'systemd'
> hook itself?

This belongs in mkinitcpio proper, along with the systemd hooks
currently residing in the core/systemd package. You can blame me for the
latter not yet happening. Given that, we should probably add this to the
systemd package for now, as to not give people the idea that sd-resume
can be used without the systemd hook.

Thanks so much for pushing this work upstream!

>  install/sd-resume | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>  create mode 100644 install/sd-resume
> 
> diff --git a/install/sd-resume b/install/sd-resume
> new file mode 100644
> index 0000000..2995a8e
> --- /dev/null
> +++ b/install/sd-resume
> @@ -0,0 +1,22 @@
> +#!/bin/bash
> +
> +build() {
> +    map add_binary \
> +            /usr/lib/systemd/systemd-hibernate-resume \
> +            /usr/lib/systemd/system-generators/systemd-hibernate-resume-generator
> +
> +    map add_systemd_unit \
> +            systemd-hibernate-resume at .service \
> +            local-fs-pre.target
> +}
> +
> +help() {
> +    cat <<HELPEOF
> +This hook adds builtin systemd facility for resuming from disk. It allows to
> +specify the resume device by its persistent path (resume=/dev/disk/by-foo/bar)
> +or in fstab-like way (resume=FOO=bar), just like it's possible with the root=
> +parameter.
> +HELPEOF
> +}
> +
> +# vim: set ft=sh ts=4 sw=4 et:
> -- 
> 2.1.0