[gPXE] iSCSI Booting

[Chad Voelker]

Hello,

I'm trying to boot a Ubuntu Lucid PC (2.6.32-26 - GRUB2) using a chained 
gPXE boot, it halts at "Booting from BIOS drive 0x80". I've tried 
various machines, so I'm assuming it is a problem with the iSCSI image's 
boot sectors or some other boot-related setup on the image. I can mount 
the iSCSI drive without a problem. I followed the directions here: 
http://www.etherboot.org/wiki/sanboot/ubuntu_iscsi2

I was hoping to see some logging showing the iSCSI connection, but I've 
searched through /var/log on the iscsitarget and don't see any relevant 
iSCSI activity. I also looked to see if there was any evidence of a 
partial boot by looking at the log files on the iSCSI image (after 
mounting on another machine), but nothing has been touched for days.

Various data is below. Any thoughts? Thanks in advance.

-Chad

I created a .kpxe formatted rom using rom-o-matic.net following all of 
the defaults except using the undionly NIC.

DHCP Server::dhcpd.conf:
host y {
         hardware ethernet 00:1b:21:12:41:ff;
         fixed-address 192.168.1.90;
         option host-name "y";
         if exists user-class and option user-class = "gPXE" {
                 option root-path 
"iscsi:192.168.1.170::::iqn.2010-10.net.xxxx:mc-y.lun1";
         } else {
                 option root-path "192.168.1.170:/nfsroot/mythfrontends";
                 filename "mythfrontends/gpxe-1.0.1-undionly-trim.kpxe";
         }
}

iSCSI Target::/etc/ietd.conf:
Target iqn.2010-10.net.xxxx:mc-y.lun1
         Lun 0 Path=/dev/loop0,IOMode=wb,Type=blockio
         Alias LUN0

iSCSI Target::$ losetup -a
/dev/loop0: [0811]:8388611 (/clients/iscsi/mc-y-lun1.img)

iSCSI Image::$ cat /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="ip=dhcp ISCSI_INITIATOR=y 
ISCSI_TARGET_NAME=iqn.2010-10.net.voelkers:y.lun1 
ISCSI_TARGET_IP=192.168.1.170 ISCSI_TARGET_PORT=3260 quiet splash"