Unable to use pxelinux's sanboot.c32 or gpxecmd.c32 to boot iscsi target with chap

[robinsmidsrod]

This is a remarkably complex process you use to sanboot.

You can achieve both the menus and the sanbooting without involving PXELinux at all. You didn't specify if the username/password was going to be supplied via DHCP or if the user should submit it interactively. I'm going to assume you want an interactive login.

If you want that you can just use the login command (http://ipxe.org/cmd/login) to specify username/password and use the normal sanboot command to boot your iSCSI target with CHAP authentication.

If you need menus for more choices you can use the native iPXE menu feature documented at: http://ipxe.org/cmd/menu and with an extensive example in the stickied thread named "Documentation".

Doing a lot of contortions back and forth between iPXE and PXELinux has been known to cause issues.