Can you figure out a way to use the unique serial number of the CPU? Or
perhaps the factory MAC address of one of the NICs?
On SPARC, we have hostids that are unique, but unforutnately I don't
believe that x86 has that ability.
-- Garrett
On Fri, 2007-08-17 at 21:57 +0530, Anil Gulecha wrote:
> On 8/17/07, Garrett D'Amore <[EMAIL PROTECTED]> wrote:
> > On Fri, 2007-08-17 at 08:24 -0700, Alan Coopersmith wrote:
> > > Anil Gulecha wrote:
> > > > I'm looking for a very simple way to generate PCID in an x86
> > > > machinevery early in the bootup (when root file system is mounted).
> > > > the varience should be enough to distinguish between various desktps,
> > > > laptops and motherboards. I'm not looking for absolute unique IDs
> > > > (around 8 characters).
> > > >
> > > > Currently I came up :
> > > > /usr/X11/bin/scanpci | /usr/bin/digest -a md5 | /usr/bin/cut -c 1-8
> > >
> > > I'm not sure what PCID is, so don't know if it matters, but if you're
> > > expecting scanpci to always give identical output for the same machine,
> > > be very careful - the output may change without warning, either in
> > > format (less likely) or in the name assigned to a specific device (more
> > > common - happens to some devices every time we pull in a new dump of the
> > > PCI ids database from pciids.sf.net).
> > >
> >
> > I'm curious as well, what is the purpose of this?
> >
> Oops..
>
> Here goes. I'm working on BeleniX liveUSB session saving. This would
> allow users to save back changes that they make to their environment
> back to the USB, thus making it available the next time the USB boots.
>
> Now there are stuff that belenix asks for a PC: Keyboard choice,
> decktop env (KDE/xfce) and the desktop resolution, network settings,
> etc. I plan on saving these settings too, so they dont need to be
> asked everytime. the scrips will identify that old setting of that PC
> and boot accordingly. This could be interestign for livemedia project
> as well (think encrypted liveUSB with xlofi)
>
> To do this I need a method to identify the particular PC. this the
> need for a pcid or signature for a particular machine.
>
> All the scripts to do tis are ready now excluding the 'signature.sh'
> ((which currently just holds 'echo 4012323')
>
> Alan pointed out an issue, however I dont think it should be of much
> worry as the o/p of scanpci will be the same for a particular build of
> ON.
>
> I hope I've conveyed that well enough.
>
> Anil
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