FreeBSD stuck during the boot process.

atar atar.yosef at
Tue Sep 17 15:48:00 UTC 2013

Polytropon <freebsd at> wrote:

> On Tue, 17 Sep 2013 12:15:58 +0300, Atar wrote:
>> When I try to boot FreeBSD from a USB stick, it stuck during the
>> boot process. But if I boot it in safe mode, it succeeds to boot.
>> How can I figure out what's wrong with the standard boot process?
>> I can't even log the boot messages since the computer stuck and
>> not respond.
> You could try a verbose boot (equivalent: boot -v) and see _when_
> the system stops resonding. It would help to post the error message
> (last lines of console output) to the list to get a better impression
> about what's happening.
> If I remember correctly, "safe mode" refers to the mode with ACPI
> disabled, right? In this case, it _could_ be an ACPI problem (a really
> wild guess, as you have provided no information about the system you
> are trying to boot FreeBSD on).

Thanks for replying!!

Yes, you remember correctly, safe mode disable the ACPI support  

I think it's a problem in the ACPI system because when I disable ACPI, it  
boot successfully even without choosing safe mode.

But what that is strange here, is that Microsoft Windows and Linux  
(Debian) are able to boot with ACPI enabled. furthermore, some days ago  
FreeBSD itself succeeded to boot also with ACPI support enabled.

As for the error messages, there's not a particular error message. it  
simply stuck during the initialization of the PCI bus.

Here are the last eight lines:

> pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
> pcib2: domain	0
> pcib2: secondary bus	2
> pcib2: subordinate bus	2
> pcib2: no prefetched decode
> pcib2 Subtractively decoded bridge.
> pcib2: <ACPI PCI bus> on pcib2
> pcib2: domain=0, physical bus=2



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