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Boot blockers

If you have an AMD processor (mine are Phenom II or Athlon II Regor) this mitigation can cause bootup trouble, possibly in /etc/sysctl.conf or /boot/loader.conf:

vm.pmap.pti=1

I am uncertain why, but including the following in my /etc/rc.conf prevented successful boot.  Perhaps the setting was wrong or it is intended for a different FreeBSD version.

vfs.root.mountfrom="zfs:zroot"


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