This is from : Frequently Asked Questions about Sun NVRAM/hostid Date: 2000/03/03 18:27:20
Revision: 1.61 The most up to date version of this document can be obtained from the following sites: * ftp://ftp.mindlink.net/pub/crypto/sun-stuff/sun-nvram-hostid.faq.html * http://www.squirrel.com/squirrel/sun-nvram-hostid.faq.html Plain text versions of this document are available from the following: * ftp://ftp.mindlink.net/pub/crypto/sun-stuff/sun-nvram-hostid.faq * http://www.squirrel.com/squirrel/sun-nvram-hostid.faq This document has been placed in the public domain by the author - Mark Henderson <[EMAIL PROTECTED]> 2. Change the hostid of an SS10 to be 72c0ffee and the ethernet address to be 08:00:20:c0:ff:ee. 01 0 mkp 72 1 mkp 08 2 mkp 0 3 mkp 20 4 mkp c0 5 mkp ff 6 mkp ee 7 mkp 0 8 mkp 0 9 mkp 0 a mkp 0 b mkp c0 c mkp ff d mkp ee e mkp 0 f 0 do i idprom@ xor loop f mkp 3. Change the hostid of an SS1000 to 80c0ffee. Leave the ethernet address and the date of manufacture intact. Note that the system type byte for the SS1000 is 0x80 c0 c mkp ff d mkp ee e mkp 0 f 0 do i idprom@ xor loop f mkp update-system-idprom 4. Install a new NVRAM in an IPX. Set the hostid to 57c0ffee and the ethernet address to be 08:00:20:c0:ff:ee . 1. Turn the machine off. 2. Remove the old NVRAM chip 3. Install the new NVRAM chip. Be sure to get the orientation right. 4. Turn the machine on. 5. At the OpenBoot monitor prompt execute the following commands: set-defaults setenv diag-switch? false 8 0 20 c0 ff ee c0ffee mkpl ^D^R where ^D represents Control-D, etc. ------------------------------------------------------------------------ Odds and Ends. Resetting the NVRAM (when Stop-N doesn't do it) [EMAIL PROTECTED] wrote: > Hello! > > I am the lucky owner of an old SPARCstation 1 w/ 12 Mb RAM, which I got for > free. I am also the unlucky owner of the same SPARCstation's dead NVRAM (I get > the ff:ff:ff... ethernet adress at boot). > > I'm interested in getting Linux onto this machine, mostly just for the fun of > it. Now, for my question, is it possible to boot the machine without replacing > the faulty chip, even if one would have to go through the same procedure each > boot? > > // Simon Kågström > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] -- Tad Bilby Rave Computer Assoc. 800-966-7283
