>Hope you folks dont mind simple questions ;-) Ah, so that must be the reason everyone has these questions ;-)
>Can I ipl a Linux image off either a cdl or ldl format disk? Yes. You need run zipl (for the Linux 2.4 distro - zilo, silo for older). It should work with either cdl and ldl format. >I am going to try this and see if it works but I thought I'd ask and see >what I can learn. BTW ... could somebody point me to a good explanation >of cdl v/s ldl? CDL is compatible with the standard format for S/390 DASD devices, so your other IBM S/390 Operating Systems like z/OS, z/VM and VSE should be able to access the disks and do a physical backup / restore for exameple. The Linux for S/390 utilities also allow you to cut your enormous 2.3 GB disks into smaller partitions that you can use a separate block devices ;-) and these partitions look to z/OS as datasets. Access to the disks from another OS should be restricted to time when Linux is down. LDL is the older layout that Linux for S/390 invented. It is compatible with nothing except the older Linux dasd drivers (and that is probably the best use for it: to have disks that you can use with the old kernel). Rob
