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Date: Fri, 9 Jun 2000 13:15:51 +0100
From: Chris Webb <chris@arachsys.com>
To: questions@freebsd.org
Subject: Re: PXE Booting?
Message-ID: <20000609131551.A39557@miranda.arachsys.com>
References: <20000519204505.FCYF22611.mail.rdc1.va.home.com@john.baldwin.cx> <20000519150314.A77833@elvis.mu.org>
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I have a diskless box I'm trying to boot by PXE. I've configured a
dhcpd, and I've got the loader loading by tftp and then the kernel
booting by NFS fine. I'm having a little trouble persuading the kernel
to mount the root filesystem, though. My dhcpd.conf says:

  option domain-name "localnet";
  option routers 192.168.64.1;
  option subnet-mask 255.255.255.0;
  option broadcast-address 192.168.64.255;
  option domain-name-servers 192.168.64.2;
  server-name "DHCPserver";
  server-identifier 192.168.64.2;

  default-lease-time 120;
  max-lease-time 120;

  subnet 192.168.64.0 netmask 255.255.255.0 {
    range 192.168.64.10 192.168.64.30;
  }

  host diskless {
    hardware ethernet 0:90:27:f1:4c:9b;
    filename "/boot/pxeboot";
    fixed-address 192.168.64.20;
    next-server 192.168.64.2;
    option root-path "/";
  }

(I know that mounting the root filesystem of another machine as the
diskless box's root will produce a somewhat broken setup, but I really
just want to see the thing get as far as the init scripts before I go
away and set things up properly.)

As the kernel boots, it says:

  bootpc_init: using network interface 'fxp0'
  fxp0: starting DAD for fe80:0001::0290:27ff:fef1:4c9b
  Bootpc testing starting
  bootpc hw address is 0:90:27:f1:4c:9b
  My ip address is 192.168.64.20
  Server ip address is 192.168.64.2
  Gateway ip address is 0.0.0.0
  Server name is DHCPserver
  boot file is /boot/pxeboot
  Ignoring field type 54
  Subnet mask is 255.255.255.0
  Router is 192.168.64.1
  Ignoring field type 15
  panic: Failed to set rootfs to /

What am I doing wrong here? Can I set some parameter in the loader that
tells the kernel which server and filesystem to mount, so it doesn't
have to do a bootp (when a dhcp has already happened earlier in the boot
sequence)?

Thanks for any help.

Chris.
-- 
Chris Webb <chris@arachsys.com>           Office: +44 1299 404075
Arachsys Internet Services Ltd            Mobile: +44 7801 090045


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