linux-kernel - Re: Documentation on /sys/power/resume

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Message-ID: <46597F37.5050107@tmr.com>
Date:	Sun, 27 May 2007 08:53:11 -0400
From:	Bill Davidsen <davidsen@....com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Linux Kernel M/L <linux-kernel@...r.kernel.org>,
	Pavel Machek <pavel@....cz>
Subject: Re: Documentation on /sys/power/resume

Rafael J. Wysocki wrote:
> Hi,
> 
> On Sunday, 27 May 2007 01:51, Bill Davidsen wrote:
>> Not in the ABI doc, is there and doc at all, and if not could someone 
>> who knows where it's used might give me a hint, as a quick look didn't 
>> bring enlightenment. Or is it a future hook which doesn't work yet?
> 
> That's something that in theory may allow you to resume the system from
> and initrd script.
> 
> Basically, you write your resume device's major and minor numbers
> into it as the "MAJ:MIN" string (eg. "8:3" for /dev/sda3 on my box) and the
> kernel will try to read the image from this device and restore it.
> 
> It only works with partitions and the use of it us discouraged, so it's
> deliberately undocumented.
> 
Thanks, that's just different enough from what little info I had to make 
what I have not work. I'm looking at resume from a non-swap location.

-- 
Bill Davidsen <davidsen@....com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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