cannot identify uart chip @ 2f8

> I tried installing Solaris 10 (01/06) on a Pentium D

> processor with 4 GB of RAM. The installation didn't

> go too far before I ran into the error message Cannot

> identify uart chip @ 2f8.

This message is seen most often on systems where Solaris x86

is unable to use ACPI for system configuration information.

In this case Solaris x86 falls back and uses to some hardcoded

device configuration data, which includes a PS/2 keyboard&mouse,

a ISA parallel port and two ISA serial ports. Problem is that quite a few

of the current systems do not have ISA serial or parallel ports any

more.

When the Solaris x86 asy driver tries to use the non-existant ISA

serial port hardware, you'll get the "Cannot identify uart chip @ 2f8"

messages.

They are harmless, though. System should continue with booting.

Apparently it doesn't, so I guess there is some other issue.

> Does anyone have an idea on what this means and what

> is the work around?

Hmm, you could have a look around in the BIOS setup if there is

a setup option to enable ACPI. Or update the BIOS to the latest

version might help, too, in case the system vendor has fixed bugs

in the system's BIOS/ACPI support so that Solaris x86 will be able to

use ACPI.

You can also try booting with kmdb and verbose kernel module loading

messages, maybe that gives a hint where the problem is:

http://blogs.sun.com/roller/page/dmick?entry=diagnosing_kernel_hangs_panics_wit h

JuergenKeil at 2007-7-6 15:10:45 >