Virtual Lans; The 'Dd' Method Of Creating An Iscsi Boot Image - Qlogic 8400 Series User Manual

10–iSCSI Protocol
iSCSI Boot

Virtual LANs

Virtual LAN (VLAN) tagging is not supported for iSCSI boot with the Microsoft
iSCSI Software Initiator.

The 'dd' Method of Creating an iSCSI Boot Image

In the case when installation directly to a remote iSCSI target is not an option, an
alternate way to create such an image is to use the 'dd' method. With this method,
you install the image directly to a local hard drive and then create an iSCSI boot
image for the subsequent boot:
1. Install Linux OS on your local hard drive and ensure that the Open-iSCSI
initiator is up to date.
2. Ensure that all Runlevels of network service are on.
3. Ensure that the 2, 3, and 5 Runlevels of iSCSI service are on.
4. Update iscsiuio. You can get the iscsiuio package from the QLogic CD. This
step is not needed for SuSE 10.
5. Install the linux-nx2 package on your Linux system. You can get this
package from QLogic CD.
6. Install bibt package on you Linux system. You can get this package from
QLogic CD.
7. Delete all ifcfg-eth* files.
8. Configure one port of the network adapter to connect to iSCSI Target (for
instructions, see
9. Connect to the iSCSI Target.
10. Use the DD command to copy from the local hard drive to iSCSI Target.
11. When DD is done, execute the sync command a couple of times, log out,
and then log in to iSCSI Target again.
12. Run the fsck command on all partitions created on the iSCSI Target.
13. Change to the /OPT/bcm/bibt folder and run the iscsi_setup.sh script to
create the initrd images. Option 0 will create a non-offload image and option
1 will create an offload image. The Iscsi_script.sh script will create the
non-offload image only on SuSE 10 as offload is not supported on SuSE 10.
14. Mount the /boot partition on the iSCSI Target.
15. Copy the initrd images you created in step 13 from your local hard drive to
the partition mounted in step 14.
16. On the partition mounted in step 14, edit the grub menu to point to the new
initrd images.
17. Unmount the /boot partition on the iSCSI Target.
"Configuring the iSCSI Target" on page
190
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