On Mon, Mar 07, 2005 at 09:22:07AM +0100, martin f krafft wrote: > To prevent a user from upgrading a kernel and then suspending (the > resume process would use the new kernel, which does not work), I am > making the kernel-image drop /var/run/suspend2-new-kernel in place. > This is cleaned during a successful reboot. > > Could you please make hibernate refuse operation if this file > exists? If it exists, tell the user to reboot!
Okay, should be possible. I've written a trivial scriptlet to do this, attached to this message. I'll check with Bernard to see if this is something he wants to incorporate upstream - standardising these things between distros would be cool - but if not I'll incorporate it as a Debian-specific addition. I'll also add a suggests: to hibernate of kernel-patch-suspend2 ? Cameron
# -*- sh -*-
# vim:ft=sh:ts=8:sw=4:noet
#
# newkernel scriptlet - suggested by Martin F Krafft (madduck), and
# written by Cameron Patrick. Based (very loosely) on the lockfile
# scriptlet.
NEWKERNELFILE="/var/run/suspend2-new-kernel"
AddSuspendHook 01 NewKernelFileCheck
# Check to see if $NEWKERNELFILE exists, and if so print a message and
# refuse to hibernate.
NewKernelFileCheck() {
if ! [ -f "$NEWKERNELFILE" ]; then
return 0 # no file present, so go ahead and hibernate
fi
vecho 0 "$EXE: You have upgraded your kernel, and a suspend image from this"
vecho 0 "$EXE: kernel will not resume correctly with the new one. Please"
vecho 0 "$EXE: reboot your machine before suspending again."
vecho 0 ""
vecho 0 "$EXE: If you think this message is incorrect, or you know what
you're"
vecho 0 "$EXE: doing and want to suspend anyway, please remove
$NEWKERNELFILE"
return 2 # refuse to hibernate, even with -f
}
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