Re: I get continuous reboot after 15.0 upgrade

From: Daniel Tameling <tamelingdaniel_at_gmail.com>
Date: Tue, 27 Jan 2026 14:00:05 UTC
On Sun, Jan 25, 2026 at 11:23:38AM -0800, Carl Johnson wrote:
> I was just tring to upgrade from 14.3-RELEASE-p6 to 15.0-RELEASE, but I
> am just getting continuous reboots now.  The system is an amd64 based
> system running with zfs on root.  I first upgraded to 14.3-RELEASE-p7 as
> directed, and then did the upgrade to 15.0-RELEASE.  I didn't see any
> errors and everything seemed fine until I rebooted.  I don't see any
> unusual messages in the startup, but then it reboots after saying that
> it is starting local daemons.  Since I have zfs on root, I was able to
> boot from a 14.3-RELEASE-p7 boot environment, but I can't run 15.0.
> 
> Does anybody have any suggestions on how to debug this since I don't see
> anything useful in the log files?

Boot the system in single user mode, mount the filesystem writable and
comment out everything unnecessary in /etc/rc.conf. Same for @reboot
items in your crontab and unnecessary filesystems in /etc/fstab. Then
try booting again. If it works, you can slowly reverse what you did to
find the culprit. If it still doesn't boot, you have got a real
problem.

Best regards,
Daniel