Hi,
i am updating the mkinitrd for the next openSUSE factory release to be able
to use userspace suspend.
However, i'd like to still be able to use the same initrd with in-kernel
suspend, so switching temporarily back to an old kernel will not be too
complicated.
I am right now doing this:
if [ "$resume_mode" != "off" ]; then
if [ -e "$uresumedev" -a -x /sbin/resume ]; then
/sbin/resume
fi
if [ -e $resumedev ] ; then
# Try major:minor number of the device node
devn=$(devnumber $resumedev)
major=$(devmajor $devn)
minor=$(devminor $devn)
fi
if [ -n "$major" -a -n "$minor" ]; then
echo "$major:$minor" > /sys/power/resume
else
echo "resume device $resumedev not found (ignoring)"
fi
fi
Because if /sbin/resume won't return if it finds a valid uswsusp image,
everything should be fine.
However, i am not sure if it might (by accident) find a valid uswsusp
image in a swsusp partition.
It worked fine for me in my tests, but maybe i was just lucky...
I'd guess it is ok because of:
swsusp.h:#define SWSUSP_SIG "ULSUSPEND"
swap.c:#define SWSUSP_SIG "S1SUSPEND"
but since this is a "lose your data if this happens" issue, i'd like to
get this confirmed ;-)
--
Stefan Seyfried \ "I didn't want to write for pay. I
QA / R&D Team Mobile Devices \ wanted to be paid for what I write."
SUSE LINUX Products GmbH, Nürnberg \ -- Leonard Cohen
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