I rebooted one of my AIX 5.1 workstations the other day to bring it into
Single User and make sure it cleaned out any remaining processes. When it
came up into that mode, I got an error trying to run `netstat`. The machine
is running in 32 bit mode, but when I ran `netstat` it spit out this error
message
(paraphrasing wildly here....)
"This machine isn't set up to run 64 bit applications, please read
documentation on how to enable this mode"
Obviously that wasn't the error message, but that was the gist of it.

I don't understand, what would have caused that? It was only `netstat` that
produced that message, and when I rebooted the system it went back to normal
operations. When I entered Single User again, netstat worked just fine.

I don't get it?

You should be in "false 64-bit" mode (/unix does not show a
link to unix_64 but to unix_mp, and bootinfo -K returns 32).

In the file /etc/inittab, a program is called to allow
the 64-bit mode (I forgot the name) when in multi-user mode.

As this program is not called in single-user mode, you get
this error message.

Any reason why you are not in "true 64-bits" mode ?
I know three:
- The (old) computer does not support it.
- The supplier forgot migrations commands when
upgrading from 4.x to 5.x.
- Some of your applications dont support it.

Kind regards,
Stephane

"Stephane Gassies" <sgassies@club-internet.fr> wrote in message
news:4288943B.7E947388@club-internet.fr...
> You should be in "false 64-bit" mode (/unix does not show a
> link to unix_64 but to unix_mp, and bootinfo -K returns 32).
>
> In the file /etc/inittab, a program is called to allow
> the 64-bit mode (I forgot the name) when in multi-user mode.
>
> As this program is not called in single-user mode, you get
> this error message.
>
> Any reason why you are not in "true 64-bits" mode ?
> I know three:
> - The (old) computer does not support it.
> - The supplier forgot migrations commands when
> upgrading from 4.x to 5.x.
> - Some of your applications dont support it.
>
> Kind regards,
> Stephane

That's all true, but why would it happen just once? Really that is the
question in my mind.