[arch-general] Suspend to ram and uresume hook for systemd

[Mantas Mikulėnas]

On Mon, Jul 30, 2012 at 8:54 PM, Myra Nelson <myra.nelson at hughes.net> wrote:
> Manta:
"Mantas".

> Clarification:
>
> When using s2ram -f, suspend works. When including the uresume hook in
> the initramfs.img, it works but a reboot, for whatever reason, hangs
> waiting for libcrypt, and won't boot. Thus my question. After
> rebuilding my initramfs image without the uresume hook s2ram -f works
> but obviously systemctl suspend puts the machine into suspension, but
> it won't wake up. Here is where my initial confusion came in.

You still haven't explained why do you think you need the "uresume" hook.

`systemctl suspend` DOES NOT use it. The hook is only needed for
hibernation via `s2disk`.

> Why does the reboot with the uresume hook built into the img look for
> libcrypt and try to decrypt unencrypted volumes?

- The uresume hook shouldn't be looking for for libgcrypt, since it is
already part of the hook. If it prints out the libgcrypt version, it
doesn't mean "looking for".

- The uresume hook needs libgcrypt not because of volumes, but because
s2disk can be configured to encrypt the hibernation image.

-- 
Mantas Mikulėnas