Date: Wed, 24 Sep 2003 20:03:54 +0200 (MEST) From: Per Kristian Hove <Per.Hove@math.ntnu.no> To: freebsd-sparc64@freebsd.org Subject: sparc64 loader gets confused when netbooting Message-ID: <Pine.GSO.4.52.0309241925080.3847@abel.math.ntnu.no>
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When netbooting, the sparc64 loader tries to download the kernel from
the wrong server address. This isn't noticeable unless you have
separate DHCP, TFTP and NFS servers. If your setup is like this:
DHCP server: IP address d.d.d.d
TFTP server: IP address t.t.t.t
NFS server: IP address n.n.n.n
and the netbooting client has this entry in dhcpd.conf:
host hostname.example.com {
[...]
next-server t.t.t.t;
filename "loader";
option root-path "n.n.n.n:/export/install";
}
this is what happens:
1. boot net:dhcp
OBP broadcasts for DHCP, gets an answer (from d.d.d.d) containing
the name of the file to load, and the server to load it
from (t.t.t.t). So far, so good.
2. OBP loads "loader" via tftp from t.t.t.t (or from d.d.d.d, if the
DHCP response doesn't contain "next-server"). So far, so good.
3. Loader tries to load kernel/loader.rc/etc. as told by "option
root-path", by NFS mounting "/export/install" from t.t.t.t.
(Correct behaviour would be to mount the file system from n.n.n.n).
So the problem is that the 5.1-RELEASE loader tries to load the kernel
via NFS from the "next-server" server, not the one specified in
"option root-path". This is what I see:
FreeBSD/sparc64 bootstrap loader, Revision 1.0
(root@sparkle.attlabs.net, Thu Jun 5 00:18:44 GMT 2003)
bootpath="/pci@1f,0/ethernet@c:dhcp"
boot: ethernet address: xx:xx:xx:xx:xx:xx
net_open: server addr: t.t.t.t
net_open: server path: /export/install
while this is what I'm expecting:
[...]
net_open: server addr: n.n.n.n
net_open: server path: /export/install
PXE-booting an i386 computer used to have the same problem, but that
was fixed in rev. 1.17 of /sys/boot/i386/libi386/pxe.c (PR 21743).
--
Per Kristian Hove
Dept. of Mathematical Sciences
Norwegian University of Science and Technology
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