augusta bonaventura(augusta...@gmail.com) on 2018.04.21 10:55:54 +0300:
> There is no problem when I reboot many times. Whenever I turn off power
> supply hardly, it comes with problem.
> it is not a solution for me to implement the solutions you specify. I
> installed/updated(boot-kernel) it several times after our correspondence
> with you.
> I have done the same process many times in 6.1, but I have not had a
> problem.
> I think, the tests i've made and the problems i've experienced originate
> from the 6.2 version of the change.

earlier you wrote:

> I am installing on the hardware mentioned below in OpenBSD 6.2 and 6.3
> versions. When the Login menu comes, I turn off power supply (only 1 time)
> for a power failure test. When the device reboots, it reboots itself when
> it comes to the "boot>" menu.

you say this is repeatable?

Does it also happen when you let the system sit at the login prompt for some
time, say 5 minutes, before pulling the plug?

When it happens, can you still boot with

   > boot /bsd.booted

or, if /bsd.booted does not exist, with

   > boot /obsd

at the bootloader prompt?

/Benno

 
> 2018-04-21 4:43 GMT+03:00 IL Ka <kazakevichi...@gmail.com>:
> 
> > Reinstalling the operating system seems to solve the problem.
> >>
> > Almost never you need to reinstall OpenBSD.
> >
> > There are only 2 parts that could be broken in your case:
> > boot(8) and kernel itself (/bsd).
> > Both could be downloaded from CD or ftp.OpenBSD.org website
> >
> > That is why I told you to try to boot CD kernel using your boot(8) (and
> > vice versa)
> > to check which one is broken and then replace it.
> >
> > But you reinstalled OS, so we will not know it.
> >
> > But my main question is different: Why does this problem happen in the
> >> release 6.2 and later versions? The same process does not cause the problem
> >> in version 6.1.
> >>
> > I do not know..
> > Unexpected reboot is always some kind of lottery, that is why people use
> > backups and even store /etc/ in vcs
> > and OpenBSD has /altroot where it copies kernel and other files
> >
> > FFS does its best to save filesystem metadata (unless you enable async
> > mount option explicitly, which you did not do I am sure)
> > and fsck (fsck -f ?) almost always helps.
> >
> > It could be that it has nothing to do with OpenBSD version: just an
> > accident
> >
> >
> 

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