On 10/04/2010 06:22 AM, daniel@xxxxxxxxxx wrote:
I've been trying to PXE boot using Dracut with an NFS root. I've been able to boot the node via PXE, get an IP address on eth0 but it always fails to mount the root device. I have it set to drop into the shell and at this point if I do: mount.nfs xxx.xxx.xxx.xxx:/vol/blah /sysroot -o nolock # it works i.e. I can mount the NFS. I've tried various methods in specifying the root via the kernel cmd param's and also in the DHCP config with no luck in getting it to mount and pivot. Here is the pxeboot.cfg file: # NFS server for OS image (imageroot) is at address 10.197.170.5 PROMPT 1 TIMEOUT 10 DEFAULT 1 DISPLAY messages LABEL 1 KERNEL vmlinuz-2.6.34-gentoo-r1 APPEND rw bootdev=eth0 ip=eth0:dhcp root=nfs:10.197.170.5:/vol/filerboot/linux/images/live-mon-test:fg,nfsvers=3,nolock,timeo=600,retrans=2,rsize=32768,wsize=32768,hard,nointr,actimeo=3600,tcp,noacl,rw initrd=initrd-2.6.34-gentoo-r1-dracut rdshell Am I missing something preventing the NFS booting? Maybe missing something in the Kernel? It appears the nfsroot script is never called. If I manually call it from the recovery shell the nfs root is mounted to /sysroot. The init.log is attached. Thanks in advance.
From the init.log:
ifup.eth0.783 + dhclient -4 -1 -q -cf /etc/dhclient.conf -pf /tmp/dhclient.eth0.pid -lf /tmp/dhclient.eth0.lease eth0 Internet Systems Consortium DHCP Client V3.1.2p1-Gentoo Copyright 2004-2009 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ Usage: dhclient [-1dqrx] [-nw] [-p <port>] [-s server] [-cf config-file] [-lf lease-file][-pf pid-file] [-e VAR=val] [-sf script-file] [interface] If you did not get this software from ftp.isc.org, please get the latest from ftp.isc.org and install that before requesting help. If you did get this software from ftp.isc.org and have not yet read the README, please read it before requesting help. If you intend to request help from the dhcp-server@xxxxxxx mailing list, please read the section on the README about submitting bug reports and requests for help. Please do not under any circumstances send requests for help directly to the authors of this software - please send them to the appropriate mailing list as described in the README file. exiting. ifup.eth0.783 + echo dhcp failed dhcp failed
So, it seeems like your dhclient does not support one of the options (most likely "-4"). You might want to try dhclient version > 4 or modify /usr/share/dracut/modules.d/40network/ifup and remove "-4" from "do_dhcp -4".
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