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Date:      Mon, 23 Aug 1999 16:31:31 -0400 (EDT)
From:      "Mark J. Taylor" <mtaylor@cybernet.com>
To:        current@freebsd.org
Subject:   Floppy/diskless booting problem with -current
Message-ID:  <XFMail.990823163131.mtaylor@cybernet.com>

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I'm attempting to boot a -current system (from 4 days ago) off of a modified
GENERIC kernel floppy disk, and it is failing in kern/vfs_conf.c's vfs_mountrootfs
routine, with a message:
  rootdev=0xffffffff error=6,  panic: cannot mount root(2)


rootdev is NODEV, and err is ENXIO.


The isc-dhcp server does serve the bootp request successfully (I get messages from
the -current kernel that indicate an IP address, rootfs, et.al), and the NFS server
reports the success of the client mounting the NFS-exported filesystem (the server
is a 3.1-RELEASE machine).  I am not specifying any swap (yet).



I'm using a straight GENERIC kernel, kgzipped, with options added at the end:
  options BOOTP
  options BOOTP_NFSROOT
  options BOOTP_COMPAT
  options NULLFS
  options UNION

(the NFS_ROOT option is already in GENERIC.)



Am I missing something?  (I tried "BOOTP_NFSV3" option also)...  Any success stories
using this method? (as documented in /usr/share/examples/diskless)





-Mark Taylor
NetMAX Developer
mtaylor@cybernet.com
http://www.netmax.com/



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