[SunHELP] Where does OS get the hostid ona Intel machine?

[Edward Chase]

That changes things...

I hope Andrew isn't planning on running his Solaris binaries on the linux OS...



At 12:14 PM 10/23/2001 -0400, David Eisner wrote:

>I'm not sure which one andrew really wanted to know about, but
>hostname != hostid.
>
> From the Solaris on Intel - x86 FAQ (http://sun.drydog.com/faq/):
>
>   (7.5) My licensed software fails because the host ID is 0. What's wrong?
>
>   Intel processor machines don't have an IDPROM, so Sun generates a serial
>   number, hostid command or sysinfo()'s SI_HW_SERIAL, pseudo-randomly during
>   installation. The number is stored in /kernel/misc/sysinit, whose only
>   function, it appears, is to provide the serial number. If serialization
>   information is tampered or sysinit fails to load, the host ID will be
>   0. If you reinstall Solaris, sysinit will be regenerated and your host ID
>   will change. So be careful about reinstalling Solaris if you have licensed
>   software that depends on your host ID. Backup your sysinit file.
>
>   To preserve the same ID (and therefore licenses), copy file
>   /kernel/misc/sysinit to the replacement system. I understand the Sun
>   Workshop Manual says this is allowed twice per calendar year (please
>   verify this yourself).
>
>   For more information, see the Sun NVRAM/hostid FAQ, available at
>   http://www.squirrel.com/squirrel/sun-nvram-hostid.faq.html and
>   elsewhere. This also has tools to fake hostids.
>
>
>-David
>
>
>On Tue, 23 Oct 2001, Meng, Andrew wrote:
>
> > Edward,
> >
> > Can I change the hostid in Linux to be the same as the Inter Solaris' one?
> > Thanks!
> >
> > Andrew
> >
> > -----Original Message-----
> > From: Edward Chase [mailto:echase at postoffice.providence.edu]
> > Sent: Tuesday, October 23, 2001 11:20 AM
> > To: sunhelp at sunhelp.org
> > Subject: Re: [SunHELP] Where does OS get the hostid ona Intel machine?
> >
> >
> > The hostname is part of the OS configuration.  If you dual boot the 
> machine
> > one OS could refer to the machine as one name, the other OS could refer to
> > the machine as another name.
> >
> > DHCP and DNS will present it's own issues if you want to use different
> > names.
> >
> >
> > At 10:44 AM 10/23/2001 -0400, Meng, Andrew wrote:
> > >Hi there,
> > >
> > >Can anyone tell me where OS get the hostid for Intel Solaris machine? If I
> > >install Linux on the same intel machine, do I get the same hostid. The
> > >reason that I am asking is that some software license is linked to the
> > >hostid.
> > >
> > >Thanks in advance!
> > >
> > >Andrew
> >
>
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  Edward F. Chase III     |   echase at providence.edu
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