Iscsi boot / diskless blades issue

[tleej]

Hi,

I'm having trouble configuring diskless boot from BroadCom NetXtreme cards with iscsi boot support to luns on a SAN.

The way I understand it is that the network card allows to read the boot sector, then the system boots, and initrd reconnects to the san to mount root.

The issue is that the mac addresses of the card seems to be hard coded by anaconda, i.e if you clone the lun on the SAN and try to boot it on another blade, it fails.

Does anyone encountered the same kind of issues ? Is there any way to get Initrd to just check an ifname rather than a mac address ?

Thanks for your help.

Tleej

[stevemarfisi]

You need to modify the init script inside the initrd. I commented out the netname instance to get this to work. In order to share RHEL boot from iSCSI images, a script to change hostname would be required as well.

A document describing this process is on the Double-Take support website at support .doubletake.com.

Regards,
Steve Marfisi
Product Manager, Flex (boot from iSCSI)
Double-Take Software

Hi,

I'm having trouble configuring diskless boot from BroadCom NetXtreme cards with iscsi boot support to luns on a SAN.

The way I understand it is that the network card allows to read the boot sector, then the system boots, and initrd reconnects to the san to mount root.

The issue is that the mac addresses of the card seems to be hard coded by anaconda, i.e if you clone the lun on the SAN and try to boot it on another blade, it fails.

Does anyone encountered the same kind of issues ? Is there any way to get Initrd to just check an ifname rather than a mac address ?

Thanks for your help.

Tleej

[tleej]

Thanks Steve, I did manage to change the entries, re-compress the image file and boot from it, but a script would be indeed very useful.

By the way it looks like I need a username for your website.

[tleej]

Also Steve, how did you overcome the hard coded iqn issue in the init file ?

Thanks again