Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!sun-barr!cs.utexas.edu!usc!ucsd!ucbvax!NRCM3.NRC.CA!SERRER From: SERRER@NRCM3.NRC.CA (Martin Serrer) Newsgroups: comp.sys.sgi Subject: Alternate boot disk Message-ID: Date: 23 Nov 90 18:47:00 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 29 Hello again. First of all I would like to thank all who answered my questions re: Pointers and pointers to pointers etc... I think it's all clear now. Thank-you, Dan Karron, Scott Townsend, Dave Anderson, Chris Schoeneman, Jit Keong Tan and Gary Moss. :-) And now a NEW question. I just received a new disk (380 MByte) for my 4D50/GT and would like to install the newest version of unix on this disk leaving the old disk (170 MByte) intact. The 170 was configured as SCSI id=1. I would like to configure things now so that the 380 is id=1 and the 170 as id=2 and have the ability to boot from either disk. So off I went moving SCSI id jumpers and changing the PROM 'bootfile' and 'root' env variables. but when I try to boot the 170 at its new address I get a message... mount: giving up on: /usr followed by all the nasties one would expect if /usr wasn't available. Am I once again missing the obvious or is there a real problem? Thanks in advance for any/all reply's +-----------------------------------------------------------------------------+ | Martin Serrer Systems Lab., Bldg. M2, Montreal Rd.| | 613-993-9442 National Research Council of Canada,| | serrer@syslab.nrc.ca Ottawa, Ontario, Canada K1A-0R6 | +------------------- Software Rusts, Rust never Sleeps -----------------------+