Strange Error 5 on Real Hardware (Question)

Lonnie Cumberland lonnie at
Sun Jul 19 14:03:38 UTC 2020

Hi All,

Just an update on my effort.

I have just found that the mfsBSD "SE" version boots on my real hardware so
it does, in fact, seem like a driver problem. I am going to investigate the
differences in the drivers for the mfsBSD "SE" and mfsBSD "mini" versions
to see what is different as they are both building from the same FreeBSD
RELEASE 12.1 disc1.


On Sun, Jul 19, 2020 at 9:20 AM Lonnie Cumberland <lonnie at>

> Hi All,
> Hope that everyone is doing well today.
> I have been building mfsBSD images for testing on real hardware and have
> been using the FreeBSD RELEASE 12.1 iso to do it.  Now, I have a procedure
> for building the base mfsBSD (90MB) and also the "mini" mfsBSD (27MB)
> images. Working on adding packages and stuff next.
> The real hardware is as older system that I have:
> Test system:
> HP Pavilion p7-1240 AMD A10-5700 3.4 GHz Quad Core Desktop
> I also have a little bit stronger system
> Dell PowerEdge C6220 SFF 4 Node Server 8x Xeon E5-2650 256GB RAM 4x 2TB
> 2.5" HD
> for 2nd stage testing later once I can get things to work on the smaller
> desktop
> What seems to be strange here is that the FreeBSD disc1:
> boot up just fine on the Desktop and I do not have any problems, but when
> I build the mfsBSD images which boot up fine on a Virtualbox VM that I
> have running on Debian 10 right now, they do not boot up on the real
> hardware and I get this strange "Error 5":
> Error 5 Unretryable Error
> Cddone Got back 0x5 back
> Read(10) CDB
> CAM Status SCSI Status Error
> SCSI Status: Check Condition
> SCSI Sense: Medium Error ASC 11,5
> Maybe I need to add some kernel modules to the mfsBSD build, but I really
> not sure as I am still pretty new to FreeBSD while migrating from the Linux
> world more and more.
> Any advice or suggestions would be greatly appreciated.
> Thanks in advance.
> Lonnie

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