How to start script from /etc/pm/sleep.d after resume from hibernate?

[Jusko]

Hi.

I have a little problem. Long time ago i've added hdparm -B 254 /dev/sda to rc.local (to extend lifetime of my laptop HDD).

But as far i know, this value from rc.local is reset to default after hibernation (from 254 to 128) and after every laptop resume i need to tap in the console hdparm -B 254 /dev/sda again and again.

I've read that good solution is add new script to /etc/pm/sleep.d and that script will be executed after resume from sleep or hibernation. But i've read that syntax of this script is a little bit more complicated than simple hdparm 254 and chmod+x on script. And in matter of fact - it does not worked.

It takes me 2 hours of testing scripts for /etc/pm/sleep.d but without sucess. I've copied one script from web and put hdparm command in it, but on every resume - hdparm is still reset to default 128 value.

Script:

case $1 in
     suspend|suspend_hybrid|hibernate)
	hdparm -B 254 /dev/sda
        ;;
esac

I've named it 00hdparm254, chmod+x but it does not work.

The question is: what i need to execute hdparm -B 254 /dev/sda after wake laptop from sleep or hibernation? Script in /etc/pm/sleep.d - i know, but...

I will be grateful for every advice because i'm lack of idea.

[ocratato]

I have not tried this, but from the script example at
http://ckirbach.wordpress.com/2012/1...-resumewakeup/

I would guess that your function is being called as it is putting the system to sleep, but you need it to happen when it wakes up, ie with thaw or resume.

[Skull One]

I think that it is now systemd that is doing the suspend/hibernation, and not pm-utils.
You can try to add a script /usr/lib/systemd/system-sleep/local.sh

#!/bin/bash
[ "$1" = "post" ] && exec /usr/sbin/hdparm -B 254 /dev/sda
exit 0

Don't forget to run 'chmod +x' on it.

Details are in 'man systemd-suspend.service'.

[ocratato]

I think that it is now systemd that is doing the suspend/hibernation, and not pm-utils.

That will depend on which version of Fedora is being used, which the OP neglected to mention.
I would hope that /etc/pm/sleep.d doesn't exist if the functionality is being handled by systemd.

[Jusko]

I think that it is now systemd that is doing the suspend/hibernation, and not pm-utils.
You can try to add a script /usr/lib/systemd/system-sleep/local.sh

#!/bin/bash
[ "$1" = "post" ] && exec /usr/sbin/hdparm -B 254 /dev/sda
exit 0

Don't forget to run 'chmod +x' on it.

Details are in 'man systemd-suspend.service'.

Yes, yes - it seems that this script solved my problem I'm not up to date with changes in Fedora - i'm using Linux from 7 years but i'm not watching under the hood - only sometimes when i need something like in this topic

I was confused - especially when most info are about pm I this this is the answer why pm scripts was not working.

That will depend on which version of Fedora is being used, which the OP neglected to mention.

Right... I forgot to mention about Fedora 20


I am grateful - without Your help i don't think that i will be able to find the answer

[Skull One]

I would hope that /etc/pm/sleep.d doesn't exist if the functionality is being handled by systemd.

You're right: /etc/pm/* belongs to the package 'filesystem'. I think that it should belong to pm-utils instead. There is some cleanup to do, unless those directories are used by something else?.