home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!haven.umd.edu!umd5!oberon.umd.edu!matthews
- From: matthews@oberon.umd.edu (Mike Matthews)
- Newsgroups: comp.sys.next.sysadmin
- Subject: Netbooting
- Message-ID: <17574@umd5.umd.edu>
- Date: 16 Dec 92 15:01:23 GMT
- Sender: news@umd5.umd.edu
- Lines: 41
- Originator: matthews@oberon.umd.edu
-
- I've got a bit of a problem here.
-
- I'm trying to netboot one NeXT off another NeXT, which is easy enough to do.
- The catch, though, is the netboot server is in a different subnet, going
- through two routers on an FDDI ring.
-
- The boot goes fine -- /private/tftpboot/boot is loaded, then
- /private/tftpboot/mach, then it goes around, says the primary ethernet
- interface is en0 [some not quite right number -- where DOES it get that,
- anyway?] then it gets its hostname, says whoami: no domain name, and panics
- because it can't mount root.
-
- The netboot server is exporting root to anyone who cares to mount it (it's on
- an isolated network, so security is not a big concern). If I boot off SCSI
- disk, and mount the netboot server's root as, say, /tmp/otherroot, it works
- fine.
-
- Netbooting another NeXT on the same subnet as the netboot server works fine,
- and both are configured. I know the bootparams are set up right (well, I'm
- reasonably sure). I know the ethernet address is entered right, as
- -AUTOMATIC- works for hostname and IP address on normal booting (btw, if you
- wish to do that through a gateway, you have to move the IP Routing code from
- /etc/rc to /etc/rc.boot, to right before it tries to do hostname -AUTOMATIC-).
-
- But it can't mount the root directory and dies. I know, via router
- debugging, that it sends out a sunrpc call to the correct host, presumably to
- to the NFS mount. It does not look like the call's ever making it to the
- netboot server, though, by debugging on the other router.
-
- But why, then, does it work when the machine boots up normally? What's
- different?
-
- And where the heck does the first, seemingly bogus, primary ethernet address
- come from, anyway?
-
- Any help would be greatly appreciated.
- ------
- Mike Matthews, matthews@oberon.umd.edu (NeXTmail accepted)
- ------
- When in doubt, do what the President does -- guess.
-
-