On Tue, Jul 18, 2017 at 08:40:53PM +0200, Theo Buehler wrote:
> On Tue, Jul 18, 2017 at 11:10:00AM -0600, Theo de Raadt wrote:
> > Possibly.
> > 
> > cc'ing yasuoka who helped me with this method of disk probing.
> > 
> > But anyways, beyond a code review we need someone to SHOW THEIR BOOT LOADER
> > OUTPUT, so that we can see the hibernate marker letter is missing.
> 
> Using FDE from MBR on my T420, I can confirm Natasha's findings.
> 
> Automatic kernel selection to unhibernate fails, but manually selecting
> /bsd.booted works fine.
> 
> I see the exact same thing on reboot and on boot into unhibernate:
> (manually transcribed, no & sign)
> 
> Using drive 0, partition 3.
> Loading......
> probing: pc0 mem[630K 511M 510M 2471M 486M a20=on]
> disk: hd0+ sr0*
> >> OpenBSD/amd64 BOOT 3.33
> Passphrase: _

To compare, here my output on suspended boot for a laptop (i386)
*without* FDE:

Using drive 0, partition 3.
Loading......
probing: pc0 pci mem[636K 2037M a20=on]
disk: hd0+&
>> OpenBSD/i386 BOOT 3.31
unhibernate detected: switching to /bsd.booted
boot> 
booting hd0a:/bsd.booted: 8122376+....
entry point at 0x2000d4
...

So here the & is present, and an explicit line is echoed.
-- 
Sebastien Marie

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