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iscsi boot to netapp
2013-04-02, 17:25 (This post was last modified: 2013-04-03 17:11 by robinsmidsrod.)
Post: #1
iscsi boot to netapp
I am testing various ways to load RHEL on servers with no internal hard drives on luns we've created on a netapp using 1) open-iscsi capable nics, 2) ipxe, 3) dracut (RHEL6).

I really want to get ipxe to work since it's not hardware or OS dependent.

After pouring through the documents and threads it looks like iPXE should be straight forward but I am unable to get it to work properly. I believe that my dhcpd.conf file and the netapp set up properly but I am getting the following error on the client:

Could not open SAN device: Input/output error (
No more network devices

On the netapp we get a message that says:
ISCSI: New session from initiator at IP addr

I have a verified load on lun id 18 within the netapp.

Relevant part dhcpd.conf file:
allow booting;
allow bootp;
option space ipxe;
option ipxe-encap-opts code 175 = encapsulate ipxe;
option ipxe.priority code 1 = signed integer 8;
option ipxe.keep-san code 8 = unsigned integer 8;
option iscsi-initiator-iqn code 203 = string;
option ipxe.iscsi code 17 = unsigned integer 8;
<other ipxe option definitions>

subnet netmask {

group pxe {
  <subnet/domain/router/etc options>
  if exists user-class and option user-class = "iPXE" {
    filename "";
    option root-path "";
    option iscsi-initiator-iqn "";
    option ipxe.keep-san 1;
  } else {
    filename "undionly.kpxe";

We know that the target and OS on the lun is good because we can boot to this lun using the NIC's open-iscli's capabilities.

Any suggestions on what we could do to troubleshoot would be greatly appreciated.

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Messages In This Thread
iscsi boot to netapp - topspincharlie - 2013-04-02 17:25
RE: iscsi boot to netapp - ArneLovius - 2013-04-05, 23:46

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