From: Nigel Cunningham <ncunningham@linuxmail.org>
To: Stefan Seyfried <seife@suse.de>
Cc: suspend-devel@lists.sourceforge.net, linux-pm@osdl.org,
Peter Jones <pjones@redhat.com>
Subject: Re: [linux-pm] Dangers of touching disk between suspend and resume
Date: Sat, 02 Dec 2006 15:41:52 +1100 [thread overview]
Message-ID: <1165034513.3143.2.camel@nigel.suspend2.net> (raw)
In-Reply-To: <20061201073956.GB18690@suse.de>
Hi.
On Fri, 2006-12-01 at 08:39 +0100, Stefan Seyfried wrote:
> So if somebody submits a patch that implements a "reset_signature" program,
> i'll include that in the suspend package.
I don't know if you care (you might not want to support Suspend2), but
for Suspend2 enabled kernels, you can just do:
[ -f /sys/power/suspend2/image_exists ] && echo 0 > /sys/power/suspend2/image_exists
You can cat the file to find out if an image exists, if you prefer (eg
from an initrd/ramfs). Return values are:
-1: resume= doesn't point to a recognised signature
0: No image, normal signature
1: Image exists.
Regards,
Nigel
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next prev parent reply other threads:[~2006-12-02 4:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-28 15:21 Dangers of touching disk between suspend and resume Daniel Drake
2006-11-28 15:43 ` [linux-pm] " Alan Stern
2006-11-28 16:37 ` Stefan Seyfried
2006-11-28 19:43 ` Daniel Drake
2006-11-30 20:00 ` Peter Jones
2006-11-30 20:13 ` Stefan Seyfried
2006-11-30 22:17 ` Peter Jones
2006-12-01 7:39 ` Stefan Seyfried
2006-12-02 4:41 ` Nigel Cunningham [this message]
2006-12-04 8:10 ` Stefan Seyfried
2006-12-05 11:28 ` Nigel Cunningham
2006-12-05 11:44 ` Stefan Seyfried
2006-12-05 11:51 ` Matt Sealey
2006-12-06 0:10 ` Nigel Cunningham
2006-12-09 15:25 ` Matthew Garrett
2006-11-30 20:42 ` Daniel Drake
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