Hello, On Mar 3, 2011, at 3:22 AM, Michael Brown wrote:
> On Thursday 03 Mar 2011 05:12:45 Scott Classen wrote: >>> That is the current default, if no explicit initiator IQN is specified >>> via either DHCP option 203 or the "initiator-iqn" setting. >> >> What is DHCP option 203? Can I add another line to my dhcpd.conf file to >> specify the iqn of my client?… like this: >> <snip> > > Yes. Buried in the middle of http://ipxe.org/howto/dhcpd, you'll find a line > > option iscsi-initiator-iqn code 203 = string; > > You can use this as follows: > > option iscsi-initiator-iqn code 203 = string; > host samos { > ... > option iscsi-initiator-iqn “iqn.2010-2011.com.mycustominitiator"; > .,. > } Yes, indeed. This works well. Now when iPXE first contacts the NetApp it identifies itself with the proper initiator. > >> I performed a GUI-based installation and in the advanced partitioning >> section connected to the netapp, loaded the iSCSI LUNs and installed the >> root filesystem onto the NetApp LUN. The installation proceeded as >> expected and then I was prompted to reboot. Of course this is where I have >> run into problems, but I think I’m making some good progress. At least >> iPXE can successfully connect to the NetApp I just need to figure out why >> the boot process freezes. >> >> I think I might go through the CentOS install again and double check that >> /boot is also being installed on the iSCSI LUN. > > Also potentially worth connecting to the LUN from another Linux system and > verifying that /sbin/fdisk gives sensible output (including a partition > marked > as "active"), and that a bootloader (e.g. grub or lilo) is installed on the > disk. > > Michael Thank you so much for your nudges in the right direction. Turns out that I had not installed grub on the proper partition. It’s a rather long and convoluted story, but essentially I re-installed CentOS (via a regular PXE boot along with a network accessible kickstart file). I carefully made sure to install grub and the mbr onto the /boot partition of the iSCSI LUN. It took a few more reboots to figure out that I also needed to be very specific about the LUN number in the DHCP iscsi root-path statement. Even though the NetApp filer is set up to map a single LUN to a single initiator I still had to specify the LUN to get a successful boot. like this: option root-path "iscsi:192.168.1.12:::5:iqn.1992-08.com.netapp:sn.151543232 Now it just works! yeah! I had to do some jiggery pokery in the dhcpd.conf file (commenting out the iPXE chainloading stuff) so that I could boot my regular PXE menu for the initial installation. I then had to uncomment the iPXE stuff, restart dhcpd and then reboot my now diskless linux machine. Thanks again for your help, Scott _______________________________________________ ipxe-devel mailing list [email protected] https://lists.ipxe.org/mailman/listinfo/ipxe-devel
